{
  "name": "Apeiron: The Open Atlas of Relations",
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      "title": "The Quantum Context — States, Measurements, and Bell Scenarios",
      "first": 73,
      "last": 96,
      "prerequisites": [
        2,
        3,
        5,
        8
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        {
          "number": 73,
          "title": "The Quantum Postulates",
          "lane": "M",
          "id": "lesson-0073",
          "status": "Heading planned",
          "url": "/education/#lesson-0073",
          "legacy_grid_id": 72
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        {
          "number": 74,
          "title": "The Qubit",
          "lane": "E",
          "id": "lesson-0074",
          "status": "Heading planned",
          "url": "/education/#lesson-0074",
          "legacy_grid_id": 73
        },
        {
          "number": 75,
          "title": "Operators and Observables",
          "lane": "E",
          "id": "lesson-0075",
          "status": "Heading planned",
          "url": "/education/#lesson-0075",
          "legacy_grid_id": 74
        },
        {
          "number": 76,
          "title": "The Commutator",
          "lane": "E",
          "id": "lesson-0076",
          "status": "Heading planned",
          "url": "/education/#lesson-0076",
          "legacy_grid_id": 75
        },
        {
          "number": 77,
          "title": "Wave Functions",
          "lane": "E",
          "id": "lesson-0077",
          "status": "Heading planned",
          "url": "/education/#lesson-0077",
          "legacy_grid_id": 76
        },
        {
          "number": 78,
          "title": "The Schrödinger Equation",
          "lane": "E",
          "id": "lesson-0078",
          "status": "Heading planned",
          "url": "/education/#lesson-0078",
          "legacy_grid_id": 77
        },
        {
          "number": 79,
          "title": "Particle in a Box",
          "lane": "E",
          "id": "lesson-0079",
          "status": "Heading planned",
          "url": "/education/#lesson-0079",
          "legacy_grid_id": 78
        },
        {
          "number": 80,
          "title": "Harmonic Oscillator",
          "lane": "E",
          "id": "lesson-0080",
          "status": "Heading planned",
          "url": "/education/#lesson-0080",
          "legacy_grid_id": 79
        },
        {
          "number": 81,
          "title": "Angular Momentum",
          "lane": "E",
          "id": "lesson-0081",
          "status": "Heading planned",
          "url": "/education/#lesson-0081",
          "legacy_grid_id": 80
        },
        {
          "number": 82,
          "title": "Spin",
          "lane": "E",
          "id": "lesson-0082",
          "status": "Heading planned",
          "url": "/education/#lesson-0082",
          "legacy_grid_id": 81
        },
        {
          "number": 83,
          "title": "The Hydrogen Atom",
          "lane": "E",
          "id": "lesson-0083",
          "status": "Heading planned",
          "url": "/education/#lesson-0083",
          "legacy_grid_id": 82
        },
        {
          "number": 84,
          "title": "Entanglement",
          "lane": "E",
          "id": "lesson-0084",
          "status": "Heading planned",
          "url": "/education/#lesson-0084",
          "legacy_grid_id": 83
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        {
          "number": 85,
          "title": "Bell's Theorem",
          "lane": "M",
          "id": "lesson-0085",
          "status": "Heading planned",
          "url": "/education/#lesson-0085",
          "legacy_grid_id": 84
        },
        {
          "number": 86,
          "title": "The Measurement Problem",
          "lane": "I",
          "id": "lesson-0086",
          "status": "Heading planned",
          "url": "/education/#lesson-0086",
          "legacy_grid_id": 85
        },
        {
          "number": 87,
          "title": "Interpretations Overview",
          "lane": "I",
          "id": "lesson-0087",
          "status": "Heading planned",
          "url": "/education/#lesson-0087",
          "legacy_grid_id": 86
        },
        {
          "number": 88,
          "title": "Decoherence",
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          "id": "lesson-0088",
          "status": "Heading planned",
          "url": "/education/#lesson-0088",
          "legacy_grid_id": 87
        },
        {
          "number": 89,
          "title": "The Density Matrix",
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          "id": "lesson-0089",
          "status": "Heading planned",
          "url": "/education/#lesson-0089",
          "legacy_grid_id": 88
        },
        {
          "number": 90,
          "title": "Path Integrals",
          "lane": "E",
          "id": "lesson-0090",
          "status": "Heading planned",
          "url": "/education/#lesson-0090",
          "legacy_grid_id": 89
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        {
          "number": 91,
          "title": "Quantum Information Basics",
          "lane": "E",
          "id": "lesson-0091",
          "status": "Heading planned",
          "url": "/education/#lesson-0091",
          "legacy_grid_id": 90
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        {
          "number": 92,
          "title": "Quantum Cryptography",
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          "id": "lesson-0092",
          "status": "Heading planned",
          "url": "/education/#lesson-0092",
          "legacy_grid_id": 91
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        {
          "number": 93,
          "title": "Quantum Computing Intro",
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          "id": "lesson-0093",
          "status": "Heading planned",
          "url": "/education/#lesson-0093",
          "legacy_grid_id": 92
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        {
          "number": 94,
          "title": "Shor's Algorithm",
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          "id": "lesson-0094",
          "status": "Heading planned",
          "url": "/education/#lesson-0094",
          "legacy_grid_id": 93
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        {
          "number": 95,
          "title": "Grover's Algorithm",
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          "id": "lesson-0095",
          "status": "Heading planned",
          "url": "/education/#lesson-0095",
          "legacy_grid_id": 94
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        {
          "number": 96,
          "title": "Quantum Error Correction",
          "lane": "M",
          "id": "lesson-0096",
          "status": "Heading planned",
          "url": "/education/#lesson-0096",
          "legacy_grid_id": 95
        }
      ],
      "id": "unit-09",
      "url": "/education/#unit-09"
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    {
      "number": 10,
      "volume": "II",
      "title": "The Clock Exchange — Special Relativity",
      "first": 97,
      "last": 108,
      "prerequisites": [
        4,
        5,
        6
      ],
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        {
          "number": 97,
          "title": "The Principle of Relativity",
          "lane": "E",
          "id": "lesson-0097",
          "status": "Heading planned",
          "url": "/education/#lesson-0097",
          "legacy_grid_id": 96
        },
        {
          "number": 98,
          "title": "Time Dilation & Length Contraction",
          "lane": "E",
          "id": "lesson-0098",
          "status": "Heading planned",
          "url": "/education/#lesson-0098",
          "legacy_grid_id": 97
        },
        {
          "number": 99,
          "title": "Lorentz Transformations",
          "lane": "E",
          "id": "lesson-0099",
          "status": "Heading planned",
          "url": "/education/#lesson-0099",
          "legacy_grid_id": 98
        },
        {
          "number": 100,
          "title": "Spacetime Diagrams",
          "lane": "E",
          "id": "lesson-0100",
          "status": "Heading planned",
          "url": "/education/#lesson-0100",
          "legacy_grid_id": 99
        },
        {
          "number": 101,
          "title": "The Invariant Interval",
          "lane": "E",
          "id": "lesson-0101",
          "status": "Heading planned",
          "url": "/education/#lesson-0101",
          "legacy_grid_id": 100
        },
        {
          "number": 102,
          "title": "Four-Vectors",
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          "id": "lesson-0102",
          "status": "Heading planned",
          "url": "/education/#lesson-0102",
          "legacy_grid_id": 101
        },
        {
          "number": 103,
          "title": "Relativistic Energy",
          "lane": "E",
          "id": "lesson-0103",
          "status": "Heading planned",
          "url": "/education/#lesson-0103",
          "legacy_grid_id": 102
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        {
          "number": 104,
          "title": "Relativistic Dynamics",
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          "id": "lesson-0104",
          "status": "Heading planned",
          "url": "/education/#lesson-0104",
          "legacy_grid_id": 103
        },
        {
          "number": 105,
          "title": "Electromagnetism and Relativity",
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          "id": "lesson-0105",
          "status": "Heading planned",
          "url": "/education/#lesson-0105",
          "legacy_grid_id": 104
        },
        {
          "number": 106,
          "title": "Relativistic QM Preview",
          "lane": "E",
          "id": "lesson-0106",
          "status": "Heading planned",
          "url": "/education/#lesson-0106",
          "legacy_grid_id": 105
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        {
          "number": 107,
          "title": "Twins and \"Paradoxes\"",
          "lane": "E",
          "id": "lesson-0107",
          "status": "Heading planned",
          "url": "/education/#lesson-0107",
          "legacy_grid_id": 106
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        {
          "number": 108,
          "title": "Geometry of Spacetime",
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          "id": "lesson-0108",
          "status": "Heading planned",
          "url": "/education/#lesson-0108",
          "legacy_grid_id": 107
        }
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      "id": "unit-10",
      "url": "/education/#unit-10"
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      "number": 11,
      "volume": "II",
      "title": "The Field Threshold — Relativistic Quantum Theory",
      "first": 109,
      "last": 128,
      "prerequisites": [
        9,
        10
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        {
          "number": 109,
          "title": "Klein-Gordon Problems",
          "lane": "E",
          "id": "lesson-0109",
          "status": "Heading planned",
          "url": "/education/#lesson-0109",
          "legacy_grid_id": 108
        },
        {
          "number": 110,
          "title": "Dirac's Linearization",
          "lane": "E",
          "id": "lesson-0110",
          "status": "Heading planned",
          "url": "/education/#lesson-0110",
          "legacy_grid_id": 109
        },
        {
          "number": 111,
          "title": "Dirac Matrices and Spinors",
          "lane": "E",
          "id": "lesson-0111",
          "status": "Heading planned",
          "url": "/education/#lesson-0111",
          "legacy_grid_id": 110
        },
        {
          "number": 112,
          "title": "Solutions of the Dirac Equation",
          "lane": "E",
          "id": "lesson-0112",
          "status": "Heading planned",
          "url": "/education/#lesson-0112",
          "legacy_grid_id": 111
        },
        {
          "number": 113,
          "title": "Spin from Dirac",
          "lane": "E",
          "id": "lesson-0113",
          "status": "Heading planned",
          "url": "/education/#lesson-0113",
          "legacy_grid_id": 112
        },
        {
          "number": 114,
          "title": "The Positron",
          "lane": "E",
          "id": "lesson-0114",
          "status": "Heading planned",
          "url": "/education/#lesson-0114",
          "legacy_grid_id": 113
        },
        {
          "number": 115,
          "title": "Dirac + EM Field",
          "lane": "E",
          "id": "lesson-0115",
          "status": "Heading planned",
          "url": "/education/#lesson-0115",
          "legacy_grid_id": 114
        },
        {
          "number": 116,
          "title": "Spinor Transformations",
          "lane": "E",
          "id": "lesson-0116",
          "status": "Heading planned",
          "url": "/education/#lesson-0116",
          "legacy_grid_id": 115
        },
        {
          "number": 117,
          "title": "Why Fields?",
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          "id": "lesson-0117",
          "status": "Heading planned",
          "url": "/education/#lesson-0117",
          "legacy_grid_id": 116
        },
        {
          "number": 118,
          "title": "Canonical Quantization",
          "lane": "E",
          "id": "lesson-0118",
          "status": "Heading planned",
          "url": "/education/#lesson-0118",
          "legacy_grid_id": 117
        },
        {
          "number": 119,
          "title": "Vacuum Fluctuations",
          "lane": "E",
          "id": "lesson-0119",
          "status": "Heading planned",
          "url": "/education/#lesson-0119",
          "legacy_grid_id": 118
        },
        {
          "number": 120,
          "title": "Particles as Excitations",
          "lane": "E",
          "id": "lesson-0120",
          "status": "Heading planned",
          "url": "/education/#lesson-0120",
          "legacy_grid_id": 119
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          "number": 121,
          "title": "Feynman Diagrams",
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          "id": "lesson-0121",
          "status": "Heading planned",
          "url": "/education/#lesson-0121",
          "legacy_grid_id": 120
        },
        {
          "number": 122,
          "title": "QED",
          "lane": "E",
          "id": "lesson-0122",
          "status": "Heading planned",
          "url": "/education/#lesson-0122",
          "legacy_grid_id": 121
        },
        {
          "number": 123,
          "title": "Renormalization",
          "lane": "E",
          "id": "lesson-0123",
          "status": "Heading planned",
          "url": "/education/#lesson-0123",
          "legacy_grid_id": 122
        },
        {
          "number": 124,
          "title": "Gauge Invariance",
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          "id": "lesson-0124",
          "status": "Heading planned",
          "url": "/education/#lesson-0124",
          "legacy_grid_id": 123
        },
        {
          "number": 125,
          "title": "Non-Abelian Gauge Theories",
          "lane": "E",
          "id": "lesson-0125",
          "status": "Heading planned",
          "url": "/education/#lesson-0125",
          "legacy_grid_id": 124
        },
        {
          "number": 126,
          "title": "Spontaneous Symmetry Breaking",
          "lane": "E",
          "id": "lesson-0126",
          "status": "Heading planned",
          "url": "/education/#lesson-0126",
          "legacy_grid_id": 125
        },
        {
          "number": 127,
          "title": "Standard Model Lagrangian",
          "lane": "E",
          "id": "lesson-0127",
          "status": "Heading planned",
          "url": "/education/#lesson-0127",
          "legacy_grid_id": 126
        },
        {
          "number": 128,
          "title": "Running Couplings",
          "lane": "E",
          "id": "lesson-0128",
          "status": "Heading planned",
          "url": "/education/#lesson-0128",
          "legacy_grid_id": 127
        }
      ],
      "id": "unit-11",
      "url": "/education/#unit-11"
    },
    {
      "number": 12,
      "volume": "III",
      "title": "The Matter Catalogue — Standard Model and Nuclear Structure",
      "first": 129,
      "last": 144,
      "prerequisites": [
        11
      ],
      "lessons": [
        {
          "number": 129,
          "title": "Quarks: The Six Flavor Labels",
          "lane": "E",
          "id": "lesson-0129",
          "status": "Heading planned",
          "url": "/education/#lesson-0129",
          "legacy_grid_id": 128
        },
        {
          "number": 130,
          "title": "Leptons: Charged Particles and Neutrinos",
          "lane": "E",
          "id": "lesson-0130",
          "status": "Heading planned",
          "url": "/education/#lesson-0130",
          "legacy_grid_id": 129
        },
        {
          "number": 131,
          "title": "Hadrons: How Quarks Form Composite States",
          "lane": "E",
          "id": "lesson-0131",
          "status": "Heading planned",
          "url": "/education/#lesson-0131",
          "legacy_grid_id": 130
        },
        {
          "number": 132,
          "title": "Nuclei: Binding, Stability, and the Mass Defect",
          "lane": "E",
          "id": "lesson-0132",
          "status": "Heading planned",
          "url": "/education/#lesson-0132",
          "legacy_grid_id": 131
        },
        {
          "number": 133,
          "title": "Radioactive Decay and Half-Life",
          "lane": "E",
          "id": "lesson-0133",
          "status": "Heading planned",
          "url": "/education/#lesson-0133",
          "legacy_grid_id": 132
        },
        {
          "number": 134,
          "title": "Neutrino Oscillations and Flavor Change",
          "lane": "E",
          "id": "lesson-0134",
          "status": "Heading planned",
          "url": "/education/#lesson-0134",
          "legacy_grid_id": 133
        },
        {
          "number": 135,
          "title": "CP Violation and Matter–Antimatter Asymmetry",
          "lane": "E",
          "id": "lesson-0135",
          "status": "Heading planned",
          "url": "/education/#lesson-0135",
          "legacy_grid_id": 134
        },
        {
          "number": 136,
          "title": "The CKM Matrix: Mixing in the Quark Sector",
          "lane": "E",
          "id": "lesson-0136",
          "status": "Heading planned",
          "url": "/education/#lesson-0136",
          "legacy_grid_id": 135
        },
        {
          "number": 137,
          "title": "The PMNS Matrix: Mixing in the Lepton Sector",
          "lane": "E",
          "id": "lesson-0137",
          "status": "Heading planned",
          "url": "/education/#lesson-0137",
          "legacy_grid_id": 136
        },
        {
          "number": 138,
          "title": "Anomaly Cancellation: A Consistency Requirement",
          "lane": "E",
          "id": "lesson-0138",
          "status": "Heading planned",
          "url": "/education/#lesson-0138",
          "legacy_grid_id": 137
        },
        {
          "number": 139,
          "title": "Inside the Proton: Partons and Structure Functions",
          "lane": "E",
          "id": "lesson-0139",
          "status": "Heading planned",
          "url": "/education/#lesson-0139",
          "legacy_grid_id": 138
        },
        {
          "number": 140,
          "title": "Confinement: The Problem of Isolated Color",
          "lane": "E",
          "id": "lesson-0140",
          "status": "Heading planned",
          "url": "/education/#lesson-0140",
          "legacy_grid_id": 139
        },
        {
          "number": 141,
          "title": "Lattice QCD: Approximating Strong Interactions",
          "lane": "E",
          "id": "lesson-0141",
          "status": "Heading planned",
          "url": "/education/#lesson-0141",
          "legacy_grid_id": 140
        },
        {
          "number": 142,
          "title": "Testing the Electroweak Sector",
          "lane": "E",
          "id": "lesson-0142",
          "status": "Heading planned",
          "url": "/education/#lesson-0142",
          "legacy_grid_id": 141
        },
        {
          "number": 143,
          "title": "The Higgs Boson: Couplings and Open Measurements",
          "lane": "E",
          "id": "lesson-0143",
          "status": "Heading planned",
          "url": "/education/#lesson-0143",
          "legacy_grid_id": 142
        },
        {
          "number": 144,
          "title": "Beyond the Standard Model: Questions Rather Than Conclusions",
          "lane": "E",
          "id": "lesson-0144",
          "status": "Heading planned",
          "url": "/education/#lesson-0144",
          "legacy_grid_id": 143
        }
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      "id": "unit-12",
      "url": "/education/#unit-12"
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      "number": 13,
      "volume": "III",
      "title": "The Curvature Atlas — General Relativity",
      "first": 145,
      "last": 160,
      "prerequisites": [
        4,
        5,
        6,
        10
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      "lessons": [
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          "number": 145,
          "title": "The Equivalence Principle: Falling and Accelerating",
          "lane": "E",
          "id": "lesson-0145",
          "status": "Heading planned",
          "url": "/education/#lesson-0145",
          "legacy_grid_id": 144
        },
        {
          "number": 146,
          "title": "Manifolds: Coordinates on a Curved World",
          "lane": "E",
          "id": "lesson-0146",
          "status": "Heading planned",
          "url": "/education/#lesson-0146",
          "legacy_grid_id": 145
        },
        {
          "number": 147,
          "title": "Tensors: Quantities That Survive Coordinate Changes",
          "lane": "E",
          "id": "lesson-0147",
          "status": "Heading planned",
          "url": "/education/#lesson-0147",
          "legacy_grid_id": 146
        },
        {
          "number": 148,
          "title": "The Metric: Measuring Intervals Locally",
          "lane": "E",
          "id": "lesson-0148",
          "status": "Heading planned",
          "url": "/education/#lesson-0148",
          "legacy_grid_id": 147
        },
        {
          "number": 149,
          "title": "Geodesics: Motion Along the Geometry",
          "lane": "E",
          "id": "lesson-0149",
          "status": "Heading planned",
          "url": "/education/#lesson-0149",
          "legacy_grid_id": 148
        },
        {
          "number": 150,
          "title": "Covariant Derivatives: Comparing Nearby Directions",
          "lane": "E",
          "id": "lesson-0150",
          "status": "Heading planned",
          "url": "/education/#lesson-0150",
          "legacy_grid_id": 149
        },
        {
          "number": 151,
          "title": "Curvature and the Riemann Tensor",
          "lane": "E",
          "id": "lesson-0151",
          "status": "Heading planned",
          "url": "/education/#lesson-0151",
          "legacy_grid_id": 150
        },
        {
          "number": 152,
          "title": "Einstein's Field Equations: Matter and Geometry",
          "lane": "E",
          "id": "lesson-0152",
          "status": "Heading planned",
          "url": "/education/#lesson-0152",
          "legacy_grid_id": 151
        },
        {
          "number": 153,
          "title": "The Schwarzschild Geometry",
          "lane": "E",
          "id": "lesson-0153",
          "status": "Heading planned",
          "url": "/education/#lesson-0153",
          "legacy_grid_id": 152
        },
        {
          "number": 154,
          "title": "Orbital Precession and Gravitational Tests",
          "lane": "E",
          "id": "lesson-0154",
          "status": "Heading planned",
          "url": "/education/#lesson-0154",
          "legacy_grid_id": 153
        },
        {
          "number": 155,
          "title": "Gravitational Waves: Disturbances of the Metric",
          "lane": "E",
          "id": "lesson-0155",
          "status": "Heading planned",
          "url": "/education/#lesson-0155",
          "legacy_grid_id": 154
        },
        {
          "number": 156,
          "title": "Rotating Black Holes and the Kerr Geometry",
          "lane": "E",
          "id": "lesson-0156",
          "status": "Heading planned",
          "url": "/education/#lesson-0156",
          "legacy_grid_id": 155
        },
        {
          "number": 157,
          "title": "Causal Structure and Penrose Diagrams",
          "lane": "E",
          "id": "lesson-0157",
          "status": "Heading planned",
          "url": "/education/#lesson-0157",
          "legacy_grid_id": 156
        },
        {
          "number": 158,
          "title": "Expanding Universes and the FLRW Metric",
          "lane": "E",
          "id": "lesson-0158",
          "status": "Heading planned",
          "url": "/education/#lesson-0158",
          "legacy_grid_id": 157
        },
        {
          "number": 159,
          "title": "Dark Energy in Cosmological Models",
          "lane": "E",
          "id": "lesson-0159",
          "status": "Heading planned",
          "url": "/education/#lesson-0159",
          "legacy_grid_id": 158
        },
        {
          "number": 160,
          "title": "The Cosmic Microwave Background as a Record",
          "lane": "E",
          "id": "lesson-0160",
          "status": "Heading planned",
          "url": "/education/#lesson-0160",
          "legacy_grid_id": 159
        }
      ],
      "id": "unit-13",
      "url": "/education/#unit-13"
    },
    {
      "number": 14,
      "volume": "III",
      "title": "The Gravity Frontier — Competing Quantum Descriptions",
      "first": 161,
      "last": 176,
      "prerequisites": [
        9,
        13
      ],
      "lessons": [
        {
          "number": 161,
          "title": "Why General Relativity and Quantum Theory Meet a Boundary",
          "lane": "R",
          "id": "lesson-0161",
          "status": "Heading planned",
          "url": "/education/#lesson-0161",
          "legacy_grid_id": 160
        },
        {
          "number": 162,
          "title": "Effective Field Theory of Gravity",
          "lane": "R",
          "id": "lesson-0162",
          "status": "Heading planned",
          "url": "/education/#lesson-0162",
          "legacy_grid_id": 161
        },
        {
          "number": 163,
          "title": "Canonical Gravity and the Constraint Problem",
          "lane": "R",
          "id": "lesson-0163",
          "status": "Heading planned",
          "url": "/education/#lesson-0163",
          "legacy_grid_id": 162
        },
        {
          "number": 164,
          "title": "Loop Quantum Gravity: Variables and Scope",
          "lane": "R",
          "id": "lesson-0164",
          "status": "Heading planned",
          "url": "/education/#lesson-0164",
          "legacy_grid_id": 163
        },
        {
          "number": 165,
          "title": "Spin Foams: Histories of Quantum Geometry",
          "lane": "R",
          "id": "lesson-0165",
          "status": "Heading planned",
          "url": "/education/#lesson-0165",
          "legacy_grid_id": 164
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        {
          "number": 166,
          "title": "Regge Calculus: Curvature on a Triangulation",
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          "id": "lesson-0166",
          "status": "Heading planned",
          "url": "/education/#lesson-0166",
          "legacy_grid_id": 165
        },
        {
          "number": 167,
          "title": "Causal Sets: Order Without a Background Metric",
          "lane": "R",
          "id": "lesson-0167",
          "status": "Heading planned",
          "url": "/education/#lesson-0167",
          "legacy_grid_id": 166
        },
        {
          "number": 168,
          "title": "Strings: Extended Objects and Consistency Conditions",
          "lane": "R",
          "id": "lesson-0168",
          "status": "Heading planned",
          "url": "/education/#lesson-0168",
          "legacy_grid_id": 167
        },
        {
          "number": 169,
          "title": "Extra Dimensions: Compactification and Observable Tests",
          "lane": "R",
          "id": "lesson-0169",
          "status": "Heading planned",
          "url": "/education/#lesson-0169",
          "legacy_grid_id": 168
        },
        {
          "number": 170,
          "title": "AdS/CFT: A Duality in a Specified Setting",
          "lane": "R",
          "id": "lesson-0170",
          "status": "Heading planned",
          "url": "/education/#lesson-0170",
          "legacy_grid_id": 169
        },
        {
          "number": 171,
          "title": "Holographic Principles and Their Domains",
          "lane": "R",
          "id": "lesson-0171",
          "status": "Heading planned",
          "url": "/education/#lesson-0171",
          "legacy_grid_id": 170
        },
        {
          "number": 172,
          "title": "Black-Hole Entropy and Microscopic Questions",
          "lane": "R",
          "id": "lesson-0172",
          "status": "Heading planned",
          "url": "/education/#lesson-0172",
          "legacy_grid_id": 171
        },
        {
          "number": 173,
          "title": "The Black-Hole Information Problem and Firewall Proposals",
          "lane": "H",
          "id": "lesson-0173",
          "status": "Heading planned",
          "url": "/education/#lesson-0173",
          "legacy_grid_id": 172
        },
        {
          "number": 174,
          "title": "Emergent Spacetime, ER=EPR, and Candidate Mechanisms",
          "lane": "R",
          "id": "lesson-0174",
          "status": "Heading planned",
          "url": "/education/#lesson-0174",
          "legacy_grid_id": 173
        },
        {
          "number": 175,
          "title": "Causal Dynamical Triangulations and Asymptotic Safety",
          "lane": "R",
          "id": "lesson-0175",
          "status": "Heading planned",
          "url": "/education/#lesson-0175",
          "legacy_grid_id": 174
        },
        {
          "number": 176,
          "title": "Comparing Quantum-Gravity Proposals by Their Evidence",
          "lane": "H",
          "id": "lesson-0176",
          "status": "Heading planned",
          "url": "/education/#lesson-0176",
          "legacy_grid_id": 175
        }
      ],
      "id": "unit-14",
      "url": "/education/#unit-14"
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    {
      "number": 15,
      "volume": "III",
      "title": "The Information Ledger — Physical Records and Limits",
      "first": 177,
      "last": 192,
      "prerequisites": [
        2,
        7,
        9
      ],
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        {
          "number": 177,
          "title": "Landauer's Principle: The Cost of Erasing a Record",
          "lane": "R",
          "id": "lesson-0177",
          "status": "Heading planned",
          "url": "/education/#lesson-0177",
          "legacy_grid_id": 176
        },
        {
          "number": 178,
          "title": "Maxwell's Demon and the Bookkeeping of Information",
          "lane": "R",
          "id": "lesson-0178",
          "status": "Heading planned",
          "url": "/education/#lesson-0178",
          "legacy_grid_id": 177
        },
        {
          "number": 179,
          "title": "Black-Hole Information: Which Records Survive?",
          "lane": "R",
          "id": "lesson-0179",
          "status": "Heading planned",
          "url": "/education/#lesson-0179",
          "legacy_grid_id": 178
        },
        {
          "number": 180,
          "title": "Entropy Bounds and Their Assumptions",
          "lane": "R",
          "id": "lesson-0180",
          "status": "Heading planned",
          "url": "/education/#lesson-0180",
          "legacy_grid_id": 179
        },
        {
          "number": 181,
          "title": "Quantum Channels: Transforming States",
          "lane": "R",
          "id": "lesson-0181",
          "status": "Heading planned",
          "url": "/education/#lesson-0181",
          "legacy_grid_id": 180
        },
        {
          "number": 182,
          "title": "Completely Positive, Trace-Preserving Maps",
          "lane": "R",
          "id": "lesson-0182",
          "status": "Heading planned",
          "url": "/education/#lesson-0182",
          "legacy_grid_id": 181
        },
        {
          "number": 183,
          "title": "Data Processing: Which Information Cannot Increase?",
          "lane": "R",
          "id": "lesson-0183",
          "status": "Heading planned",
          "url": "/education/#lesson-0183",
          "legacy_grid_id": 182
        },
        {
          "number": 184,
          "title": "A Proposed Cohomology Monotonicity Claim: What Needs Proof?",
          "lane": "H",
          "id": "lesson-0184",
          "status": "Heading planned",
          "url": "/education/#lesson-0184",
          "legacy_grid_id": 183
        },
        {
          "number": 185,
          "title": "Quantum Error Correction as a Physical Process",
          "lane": "R",
          "id": "lesson-0185",
          "status": "Heading planned",
          "url": "/education/#lesson-0185",
          "legacy_grid_id": 184
        },
        {
          "number": 186,
          "title": "Quantum Thermodynamics and Work Extraction",
          "lane": "R",
          "id": "lesson-0186",
          "status": "Heading planned",
          "url": "/education/#lesson-0186",
          "legacy_grid_id": 185
        },
        {
          "number": 187,
          "title": "Fluctuation Relations Beyond Average Behavior",
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          "id": "lesson-0187",
          "status": "Heading planned",
          "url": "/education/#lesson-0187",
          "legacy_grid_id": 186
        },
        {
          "number": 188,
          "title": "Resource Theories: Free Operations Must Be Declared",
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          "id": "lesson-0188",
          "status": "Heading planned",
          "url": "/education/#lesson-0188",
          "legacy_grid_id": 187
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        {
          "number": 189,
          "title": "The Fermion Sign Problem: Cancellations and Computation",
          "lane": "R",
          "id": "lesson-0189",
          "status": "Heading planned",
          "url": "/education/#lesson-0189",
          "legacy_grid_id": 188
        },
        {
          "number": 190,
          "title": "Proposed Cohomological Descriptions of the Sign Problem",
          "lane": "H",
          "id": "lesson-0190",
          "status": "Heading planned",
          "url": "/education/#lesson-0190",
          "legacy_grid_id": 189
        },
        {
          "number": 191,
          "title": "The Computational Complexity of Physical Prediction",
          "lane": "R",
          "id": "lesson-0191",
          "status": "Heading planned",
          "url": "/education/#lesson-0191",
          "legacy_grid_id": 190
        },
        {
          "number": 192,
          "title": "Information-Based Physics: Hypotheses and Testable Content",
          "lane": "H",
          "id": "lesson-0192",
          "status": "Heading planned",
          "url": "/education/#lesson-0192",
          "legacy_grid_id": 191
        }
      ],
      "id": "unit-15",
      "url": "/education/#unit-15"
    },
    {
      "number": 16,
      "volume": "IV",
      "title": "The Infinity Staircase — Sets and Size",
      "first": 193,
      "last": 200,
      "prerequisites": [
        1
      ],
      "lessons": [
        {
          "number": 193,
          "title": "Sets and Membership: A Declared Starting Language",
          "lane": "M",
          "id": "lesson-0193",
          "status": "Heading planned",
          "url": "/education/#lesson-0193",
          "legacy_grid_id": 192
        },
        {
          "number": 194,
          "title": "ZFC Axioms and What They Permit",
          "lane": "M",
          "id": "lesson-0194",
          "status": "Heading planned",
          "url": "/education/#lesson-0194",
          "legacy_grid_id": 193
        },
        {
          "number": 195,
          "title": "Ordinals: Ordering Beyond Finite Lists",
          "lane": "M",
          "id": "lesson-0195",
          "status": "Heading planned",
          "url": "/education/#lesson-0195",
          "legacy_grid_id": 194
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        {
          "number": 196,
          "title": "Cardinals: Comparing Infinite Sizes",
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          "id": "lesson-0196",
          "status": "Heading planned",
          "url": "/education/#lesson-0196",
          "legacy_grid_id": 195
        },
        {
          "number": 197,
          "title": "Cantor's Diagonal Argument",
          "lane": "M",
          "id": "lesson-0197",
          "status": "Heading planned",
          "url": "/education/#lesson-0197",
          "legacy_grid_id": 196
        },
        {
          "number": 198,
          "title": "The Axiom of Choice and Its Alternatives",
          "lane": "M",
          "id": "lesson-0198",
          "status": "Heading planned",
          "url": "/education/#lesson-0198",
          "legacy_grid_id": 197
        },
        {
          "number": 199,
          "title": "The Continuum Hypothesis and Independence",
          "lane": "M",
          "id": "lesson-0199",
          "status": "Heading planned",
          "url": "/education/#lesson-0199",
          "legacy_grid_id": 198
        },
        {
          "number": 200,
          "title": "Large Cardinals and the Strength of Assumptions",
          "lane": "M",
          "id": "lesson-0200",
          "status": "Heading planned",
          "url": "/education/#lesson-0200",
          "legacy_grid_id": 199
        }
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      "id": "unit-16",
      "url": "/education/#unit-16"
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    {
      "number": 17,
      "volume": "IV",
      "title": "The Proof Boundary — Logic and Incompleteness",
      "first": 201,
      "last": 212,
      "prerequisites": [
        16
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      "lessons": [
        {
          "number": 201,
          "title": "Propositions and Truth Tables",
          "lane": "M",
          "id": "lesson-0201",
          "status": "Heading planned",
          "url": "/education/#lesson-0201",
          "legacy_grid_id": 200
        },
        {
          "number": 202,
          "title": "First-Order Logic: Variables, Relations, and Quantifiers",
          "lane": "M",
          "id": "lesson-0202",
          "status": "Heading planned",
          "url": "/education/#lesson-0202",
          "legacy_grid_id": 201
        },
        {
          "number": 203,
          "title": "Formal Proofs and Inference Rules",
          "lane": "M",
          "id": "lesson-0203",
          "status": "Heading planned",
          "url": "/education/#lesson-0203",
          "legacy_grid_id": 202
        },
        {
          "number": 204,
          "title": "Completeness: Syntax Meets Semantics",
          "lane": "M",
          "id": "lesson-0204",
          "status": "Heading planned",
          "url": "/education/#lesson-0204",
          "legacy_grid_id": 203
        },
        {
          "number": 205,
          "title": "Incompleteness: What a Formal System Cannot Settle",
          "lane": "M",
          "id": "lesson-0205",
          "status": "Heading planned",
          "url": "/education/#lesson-0205",
          "legacy_grid_id": 204
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        {
          "number": 206,
          "title": "Encoding Arithmetic and Self-Reference",
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          "id": "lesson-0206",
          "status": "Heading planned",
          "url": "/education/#lesson-0206",
          "legacy_grid_id": 205
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        {
          "number": 207,
          "title": "Löb's Theorem and Provability Conditions",
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          "id": "lesson-0207",
          "status": "Heading planned",
          "url": "/education/#lesson-0207",
          "legacy_grid_id": 206
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        {
          "number": 208,
          "title": "Models: Structures That Satisfy Sentences",
          "lane": "M",
          "id": "lesson-0208",
          "status": "Heading planned",
          "url": "/education/#lesson-0208",
          "legacy_grid_id": 207
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        {
          "number": 209,
          "title": "Proof Theory: Studying Derivations Themselves",
          "lane": "M",
          "id": "lesson-0209",
          "status": "Heading planned",
          "url": "/education/#lesson-0209",
          "legacy_grid_id": 208
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        {
          "number": 210,
          "title": "Constructive and Intuitionistic Reasoning",
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          "id": "lesson-0210",
          "status": "Heading planned",
          "url": "/education/#lesson-0210",
          "legacy_grid_id": 209
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        {
          "number": 211,
          "title": "Nonstandard Models and Independence",
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          "id": "lesson-0211",
          "status": "Heading planned",
          "url": "/education/#lesson-0211",
          "legacy_grid_id": 210
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          "number": 212,
          "title": "Topos Logic: A Preview With Explicit Prerequisites",
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          "id": "lesson-0212",
          "status": "Heading planned",
          "url": "/education/#lesson-0212",
          "legacy_grid_id": 211
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    {
      "number": 18,
      "volume": "IV",
      "title": "The Computation Boundary — Algorithms and Undecidability",
      "first": 213,
      "last": 224,
      "prerequisites": [
        17
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        {
          "number": 213,
          "title": "Turing Machines as Exact Rules",
          "lane": "M",
          "id": "lesson-0213",
          "status": "Heading planned",
          "url": "/education/#lesson-0213",
          "legacy_grid_id": 212
        },
        {
          "number": 214,
          "title": "The Church–Turing Thesis: Claim and Scope",
          "lane": "M",
          "id": "lesson-0214",
          "status": "Heading planned",
          "url": "/education/#lesson-0214",
          "legacy_grid_id": 213
        },
        {
          "number": 215,
          "title": "The Halting Problem by Diagonal Construction",
          "lane": "M",
          "id": "lesson-0215",
          "status": "Heading planned",
          "url": "/education/#lesson-0215",
          "legacy_grid_id": 214
        },
        {
          "number": 216,
          "title": "Rice's Theorem: Limits of Program Classification",
          "lane": "M",
          "id": "lesson-0216",
          "status": "Heading planned",
          "url": "/education/#lesson-0216",
          "legacy_grid_id": 215
        },
        {
          "number": 217,
          "title": "Recursive Functions and Effective Procedures",
          "lane": "M",
          "id": "lesson-0217",
          "status": "Heading planned",
          "url": "/education/#lesson-0217",
          "legacy_grid_id": 216
        },
        {
          "number": 218,
          "title": "Reductions: Transferring Difficulty Between Problems",
          "lane": "M",
          "id": "lesson-0218",
          "status": "Heading planned",
          "url": "/education/#lesson-0218",
          "legacy_grid_id": 217
        },
        {
          "number": 219,
          "title": "Kolmogorov Complexity and Description Length",
          "lane": "M",
          "id": "lesson-0219",
          "status": "Heading planned",
          "url": "/education/#lesson-0219",
          "legacy_grid_id": 218
        },
        {
          "number": 220,
          "title": "Algorithmic Randomness",
          "lane": "M",
          "id": "lesson-0220",
          "status": "Heading planned",
          "url": "/education/#lesson-0220",
          "legacy_grid_id": 219
        },
        {
          "number": 221,
          "title": "Oracle Machines as Relative Models",
          "lane": "M",
          "id": "lesson-0221",
          "status": "Heading planned",
          "url": "/education/#lesson-0221",
          "legacy_grid_id": 220
        },
        {
          "number": 222,
          "title": "The Arithmetical Hierarchy",
          "lane": "M",
          "id": "lesson-0222",
          "status": "Heading planned",
          "url": "/education/#lesson-0222",
          "legacy_grid_id": 221
        },
        {
          "number": 223,
          "title": "Busy Beaver Growth and Uncomputability",
          "lane": "M",
          "id": "lesson-0223",
          "status": "Heading planned",
          "url": "/education/#lesson-0223",
          "legacy_grid_id": 222
        },
        {
          "number": 224,
          "title": "Hypercomputation Proposals and Their Physical Assumptions",
          "lane": "H",
          "id": "lesson-0224",
          "status": "Heading planned",
          "url": "/education/#lesson-0224",
          "legacy_grid_id": 223
        }
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      "id": "unit-18",
      "url": "/education/#unit-18"
    },
    {
      "number": 19,
      "volume": "IV",
      "title": "The Machine Workshop — Computer Architecture",
      "first": 225,
      "last": 232,
      "prerequisites": [
        17,
        18
      ],
      "lessons": [
        {
          "number": 225,
          "title": "Boolean Algebra and Bit Operations",
          "lane": "A",
          "id": "lesson-0225",
          "status": "Heading planned",
          "url": "/education/#lesson-0225",
          "legacy_grid_id": 224
        },
        {
          "number": 226,
          "title": "Logic Gates and Circuit Composition",
          "lane": "A",
          "id": "lesson-0226",
          "status": "Heading planned",
          "url": "/education/#lesson-0226",
          "legacy_grid_id": 225
        },
        {
          "number": 227,
          "title": "Stored Programs and Processor Architecture",
          "lane": "A",
          "id": "lesson-0227",
          "status": "Heading planned",
          "url": "/education/#lesson-0227",
          "legacy_grid_id": 226
        },
        {
          "number": 228,
          "title": "Assembly, Instructions, and Memory",
          "lane": "A",
          "id": "lesson-0228",
          "status": "Heading planned",
          "url": "/education/#lesson-0228",
          "legacy_grid_id": 227
        },
        {
          "number": 229,
          "title": "Compilers: Translating a Language Into Operations",
          "lane": "A",
          "id": "lesson-0229",
          "status": "Heading planned",
          "url": "/education/#lesson-0229",
          "legacy_grid_id": 228
        },
        {
          "number": 230,
          "title": "Operating Systems and Process Isolation",
          "lane": "A",
          "id": "lesson-0230",
          "status": "Heading planned",
          "url": "/education/#lesson-0230",
          "legacy_grid_id": 229
        },
        {
          "number": 231,
          "title": "Networks: Messages, Protocols, and Failure",
          "lane": "A",
          "id": "lesson-0231",
          "status": "Heading planned",
          "url": "/education/#lesson-0231",
          "legacy_grid_id": 230
        },
        {
          "number": 232,
          "title": "Cryptographic Primitives and Security Assumptions",
          "lane": "A",
          "id": "lesson-0232",
          "status": "Heading planned",
          "url": "/education/#lesson-0232",
          "legacy_grid_id": 231
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      ],
      "id": "unit-19",
      "url": "/education/#unit-19"
    },
    {
      "number": 20,
      "volume": "IV",
      "title": "The Choice Arena — Games and Collective Decisions",
      "first": 233,
      "last": 240,
      "prerequisites": [
        2,
        5,
        17
      ],
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        {
          "number": 233,
          "title": "Games: Players, Actions, and Payoffs",
          "lane": "M",
          "id": "lesson-0233",
          "status": "Heading planned",
          "url": "/education/#lesson-0233",
          "legacy_grid_id": 232
        },
        {
          "number": 234,
          "title": "Nash Equilibrium and Best Responses",
          "lane": "M",
          "id": "lesson-0234",
          "status": "Heading planned",
          "url": "/education/#lesson-0234",
          "legacy_grid_id": 233
        },
        {
          "number": 235,
          "title": "Mixed Strategies and Randomized Choice",
          "lane": "M",
          "id": "lesson-0235",
          "status": "Heading planned",
          "url": "/education/#lesson-0235",
          "legacy_grid_id": 234
        },
        {
          "number": 236,
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        18
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        16,
        17
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        22,
        23
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          "url": "/education/#lesson-0317",
          "legacy_grid_id": 316
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        {
          "number": 318,
          "title": "Motivic and Étale Cohomology: A Reference Entrance",
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          "id": "lesson-0318",
          "status": "Heading planned",
          "url": "/education/#lesson-0318",
          "legacy_grid_id": 317
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          "url": "/education/#lesson-0319",
          "legacy_grid_id": 318
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        {
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          "id": "lesson-0320",
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          "url": "/education/#lesson-0320",
          "legacy_grid_id": 319
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      ],
      "id": "unit-25",
      "url": "/education/#unit-25"
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    {
      "number": 26,
      "volume": "VI",
      "title": "The Collective Turn — Emergence and Criticality",
      "first": 321,
      "last": 336,
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        7,
        9
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        {
          "number": 321,
          "title": "Collective Behavior: When Many Parts Change the Question",
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          "id": "lesson-0321",
          "status": "Heading planned",
          "url": "/education/#lesson-0321",
          "legacy_grid_id": 320
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        {
          "number": 322,
          "title": "Spontaneous Symmetry Breaking in Matter",
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          "id": "lesson-0322",
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          "url": "/education/#lesson-0322",
          "legacy_grid_id": 321
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        {
          "number": 323,
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          "id": "lesson-0323",
          "status": "Heading planned",
          "url": "/education/#lesson-0323",
          "legacy_grid_id": 322
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        {
          "number": 324,
          "title": "Phonons: Quantized Lattice Vibrations",
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          "id": "lesson-0324",
          "status": "Heading planned",
          "url": "/education/#lesson-0324",
          "legacy_grid_id": 323
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        {
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          "id": "lesson-0325",
          "status": "Heading planned",
          "url": "/education/#lesson-0325",
          "legacy_grid_id": 324
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        {
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          "id": "lesson-0326",
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          "url": "/education/#lesson-0326",
          "legacy_grid_id": 325
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        {
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          "id": "lesson-0327",
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          "url": "/education/#lesson-0327",
          "legacy_grid_id": 326
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        {
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          "id": "lesson-0328",
          "status": "Heading planned",
          "url": "/education/#lesson-0328",
          "legacy_grid_id": 327
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        {
          "number": 329,
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          "id": "lesson-0329",
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          "id": "lesson-0330",
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          "id": "lesson-0331",
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          "id": "lesson-0332",
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          "id": "lesson-0334",
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          "legacy_grid_id": 333
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          "id": "lesson-0335",
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          "url": "/education/#lesson-0335",
          "legacy_grid_id": 334
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          "number": 336,
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          "id": "lesson-0336",
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          "legacy_grid_id": 335
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      "id": "unit-26",
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    {
      "number": 27,
      "volume": "VI",
      "title": "The Coherent Current — Superconductivity",
      "first": 337,
      "last": 352,
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        26
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        {
          "number": 337,
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          "legacy_grid_id": 336
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          "number": 338,
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          "id": "lesson-0338",
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          "legacy_grid_id": 337
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          "number": 339,
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          "id": "lesson-0339",
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          "legacy_grid_id": 338
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          "number": 340,
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          "id": "lesson-0340",
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          "legacy_grid_id": 339
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          "id": "lesson-0341",
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          "url": "/education/#lesson-0341",
          "legacy_grid_id": 340
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          "id": "lesson-0342",
          "status": "Heading planned",
          "url": "/education/#lesson-0342",
          "legacy_grid_id": 341
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        {
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          "id": "lesson-0343",
          "status": "Heading planned",
          "url": "/education/#lesson-0343",
          "legacy_grid_id": 342
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          "id": "lesson-0344",
          "status": "Heading planned",
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          "legacy_grid_id": 343
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          "id": "lesson-0345",
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          "url": "/education/#lesson-0345",
          "legacy_grid_id": 344
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          "legacy_grid_id": 345
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          "legacy_grid_id": 347
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          "legacy_grid_id": 348
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          "number": 350,
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          "id": "lesson-0350",
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          "legacy_grid_id": 349
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          "legacy_grid_id": 350
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          "legacy_grid_id": 351
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    {
      "number": 28,
      "volume": "VI",
      "title": "The Boundary Signature — Topological Matter",
      "first": 353,
      "last": 368,
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        23,
        26
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          "number": 353,
          "title": "The Integer Quantum Hall Effect",
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          "id": "lesson-0353",
          "status": "Heading planned",
          "url": "/education/#lesson-0353",
          "legacy_grid_id": 352
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          "number": 354,
          "title": "Berry Curvature and Chern Numbers",
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          "legacy_grid_id": 353
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          "number": 355,
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          "id": "lesson-0355",
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          "legacy_grid_id": 354
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          "number": 356,
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          "id": "lesson-0356",
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          "legacy_grid_id": 355
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          "number": 357,
          "title": "The Laughlin State and Fractional Charge",
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          "id": "lesson-0357",
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          "legacy_grid_id": 356
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          "number": 358,
          "title": "Anyonic Statistics in Many-Body Matter",
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          "id": "lesson-0358",
          "status": "Heading planned",
          "url": "/education/#lesson-0358",
          "legacy_grid_id": 357
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          "id": "lesson-0359",
          "status": "Heading planned",
          "url": "/education/#lesson-0359",
          "legacy_grid_id": 358
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          "number": 360,
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          "id": "lesson-0360",
          "status": "Heading planned",
          "url": "/education/#lesson-0360",
          "legacy_grid_id": 359
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          "legacy_grid_id": 360
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          "legacy_grid_id": 361
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          "legacy_grid_id": 362
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          "legacy_grid_id": 363
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          "legacy_grid_id": 364
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          "id": "lesson-0366",
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          "legacy_grid_id": 365
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          "number": 367,
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          "legacy_grid_id": 366
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          "number": 368,
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          "id": "lesson-0368",
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          "legacy_grid_id": 367
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      "id": "unit-28",
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      "number": 29,
      "volume": "VI",
      "title": "The Unusual Phase — Exotic Many-Body States",
      "first": 369,
      "last": 384,
      "prerequisites": [
        26,
        28
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          "number": 369,
          "title": "Quantum Spin Liquids",
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          "id": "lesson-0369",
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          "url": "/education/#lesson-0369",
          "legacy_grid_id": 368
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          "id": "lesson-0370",
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          "legacy_grid_id": 369
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          "number": 371,
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          "id": "lesson-0371",
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          "url": "/education/#lesson-0371",
          "legacy_grid_id": 370
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          "number": 372,
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          "legacy_grid_id": 371
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          "url": "/education/#lesson-0373",
          "legacy_grid_id": 372
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          "id": "lesson-0374",
          "status": "Heading planned",
          "url": "/education/#lesson-0374",
          "legacy_grid_id": 373
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        {
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          "id": "lesson-0375",
          "status": "Heading planned",
          "url": "/education/#lesson-0375",
          "legacy_grid_id": 374
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          "id": "lesson-0376",
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          "url": "/education/#lesson-0376",
          "legacy_grid_id": 375
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          "id": "lesson-0377",
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          "legacy_grid_id": 376
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          "url": "/education/#lesson-0379",
          "legacy_grid_id": 378
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          "url": "/education/#lesson-0380",
          "legacy_grid_id": 379
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          "title": "The Sachdev–Ye–Kitaev Model",
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          "url": "/education/#lesson-0381",
          "legacy_grid_id": 380
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          "legacy_grid_id": 381
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          "legacy_grid_id": 382
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          "id": "lesson-0384",
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          "url": "/education/#lesson-0384",
          "legacy_grid_id": 383
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      "id": "unit-29",
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    {
      "number": 30,
      "volume": "VII",
      "title": "The Electromagnetic Workshop — Classical Fields",
      "first": 385,
      "last": 400,
      "prerequisites": [
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        5,
        6
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          "number": 385,
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          "id": "lesson-0385",
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          "url": "/education/#lesson-0385",
          "legacy_grid_id": 384
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          "number": 386,
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          "id": "lesson-0386",
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          "url": "/education/#lesson-0386",
          "legacy_grid_id": 385
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          "number": 387,
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          "id": "lesson-0387",
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          "url": "/education/#lesson-0387",
          "legacy_grid_id": 386
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        {
          "number": 388,
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          "lane": "E",
          "id": "lesson-0388",
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          "legacy_grid_id": 387
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          "status": "Heading planned",
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          "legacy_grid_id": 388
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        {
          "number": 390,
          "title": "Faraday Induction",
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          "id": "lesson-0390",
          "status": "Heading planned",
          "url": "/education/#lesson-0390",
          "legacy_grid_id": 389
        },
        {
          "number": 391,
          "title": "Maxwell's Equations as a Coupled System",
          "lane": "E",
          "id": "lesson-0391",
          "status": "Heading planned",
          "url": "/education/#lesson-0391",
          "legacy_grid_id": 390
        },
        {
          "number": 392,
          "title": "Electromagnetic Waves",
          "lane": "E",
          "id": "lesson-0392",
          "status": "Heading planned",
          "url": "/education/#lesson-0392",
          "legacy_grid_id": 391
        },
        {
          "number": 393,
          "title": "Energy Flow and the Poynting Vector",
          "lane": "E",
          "id": "lesson-0393",
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          "url": "/education/#lesson-0393",
          "legacy_grid_id": 392
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          "number": 394,
          "title": "Radiation From Accelerating Charges",
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          "id": "lesson-0394",
          "status": "Heading planned",
          "url": "/education/#lesson-0394",
          "legacy_grid_id": 393
        },
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          "number": 395,
          "title": "Dipole Radiation",
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          "id": "lesson-0395",
          "status": "Heading planned",
          "url": "/education/#lesson-0395",
          "legacy_grid_id": 394
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        {
          "number": 396,
          "title": "Retarded Potentials and Causality",
          "lane": "E",
          "id": "lesson-0396",
          "status": "Heading planned",
          "url": "/education/#lesson-0396",
          "legacy_grid_id": 395
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          "number": 397,
          "title": "Gauge Freedom in Electromagnetism",
          "lane": "E",
          "id": "lesson-0397",
          "status": "Heading planned",
          "url": "/education/#lesson-0397",
          "legacy_grid_id": 396
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        {
          "number": 398,
          "title": "Lorenz and Coulomb Gauge Choices",
          "lane": "E",
          "id": "lesson-0398",
          "status": "Heading planned",
          "url": "/education/#lesson-0398",
          "legacy_grid_id": 397
        },
        {
          "number": 399,
          "title": "Waveguides and Resonant Cavities",
          "lane": "E",
          "id": "lesson-0399",
          "status": "Heading planned",
          "url": "/education/#lesson-0399",
          "legacy_grid_id": 398
        },
        {
          "number": 400,
          "title": "Optics and Polarization",
          "lane": "E",
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      "volume": "VII",
      "title": "The Gauge Atlas — Connections and Curvature",
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        30
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        31
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        31
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        6,
        9,
        10
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          "legacy_grid_id": 452
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          "legacy_grid_id": 459
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          "legacy_grid_id": 460
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          "url": "/education/#lesson-0462",
          "legacy_grid_id": 461
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          "title": "Which Constants Are Inputs to Which Model?",
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      "title": "The Measurement Bench — Standards and Uncertainty",
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        34
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          "status": "Heading planned",
          "url": "/education/#lesson-0465",
          "legacy_grid_id": 464
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          "legacy_grid_id": 465
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          "legacy_grid_id": 466
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          "legacy_grid_id": 467
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          "url": "/education/#lesson-0470",
          "legacy_grid_id": 469
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          "url": "/education/#lesson-0471",
          "legacy_grid_id": 470
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          "title": "Quantum Metrology",
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          "status": "Heading planned",
          "url": "/education/#lesson-0472",
          "legacy_grid_id": 471
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          "legacy_grid_id": 472
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          "legacy_grid_id": 473
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          "legacy_grid_id": 474
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          "status": "Heading planned",
          "url": "/education/#lesson-0476",
          "legacy_grid_id": 475
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          "title": "Pulsar Timing Arrays",
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          "id": "lesson-0477",
          "status": "Heading planned",
          "url": "/education/#lesson-0477",
          "legacy_grid_id": 476
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        {
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          "title": "Precision Spectroscopy",
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          "id": "lesson-0478",
          "status": "Heading planned",
          "url": "/education/#lesson-0478",
          "legacy_grid_id": 477
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          "title": "Magnetic-Moment Measurements and Model Comparisons",
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          "status": "Heading planned",
          "url": "/education/#lesson-0479",
          "legacy_grid_id": 478
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          "id": "lesson-0480",
          "status": "Heading planned",
          "url": "/education/#lesson-0480",
          "legacy_grid_id": 479
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      "id": "unit-35",
      "url": "/education/#unit-35"
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    {
      "number": 36,
      "volume": "VIII",
      "title": "The Cosmic Fit — Cosmological Parameters",
      "first": 481,
      "last": 496,
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        35
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        {
          "number": 481,
          "title": "The Hubble Parameter and Expansion History",
          "lane": "E",
          "id": "lesson-0481",
          "status": "Heading planned",
          "url": "/education/#lesson-0481",
          "legacy_grid_id": 480
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        {
          "number": 482,
          "title": "The Cosmological Constant in a Model Fit",
          "lane": "E",
          "id": "lesson-0482",
          "status": "Heading planned",
          "url": "/education/#lesson-0482",
          "legacy_grid_id": 481
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        {
          "number": 483,
          "title": "Baryon Density",
          "lane": "E",
          "id": "lesson-0483",
          "status": "Heading planned",
          "url": "/education/#lesson-0483",
          "legacy_grid_id": 482
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        {
          "number": 484,
          "title": "Dark-Matter Density",
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          "id": "lesson-0484",
          "status": "Heading planned",
          "url": "/education/#lesson-0484",
          "legacy_grid_id": 483
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        {
          "number": 485,
          "title": "Dark-Energy Equations of State",
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          "id": "lesson-0485",
          "status": "Heading planned",
          "url": "/education/#lesson-0485",
          "legacy_grid_id": 484
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        {
          "number": 486,
          "title": "The Primordial Power Spectrum",
          "lane": "E",
          "id": "lesson-0486",
          "status": "Heading planned",
          "url": "/education/#lesson-0486",
          "legacy_grid_id": 485
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        {
          "number": 487,
          "title": "Spectral Tilt and Running",
          "lane": "E",
          "id": "lesson-0487",
          "status": "Heading planned",
          "url": "/education/#lesson-0487",
          "legacy_grid_id": 486
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        {
          "number": 488,
          "title": "Tensor Perturbations and Their Constraints",
          "lane": "E",
          "id": "lesson-0488",
          "status": "Heading planned",
          "url": "/education/#lesson-0488",
          "legacy_grid_id": 487
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        {
          "number": 489,
          "title": "CMB Anisotropies",
          "lane": "E",
          "id": "lesson-0489",
          "status": "Heading planned",
          "url": "/education/#lesson-0489",
          "legacy_grid_id": 488
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        {
          "number": 490,
          "title": "Baryon Acoustic Oscillations",
          "lane": "E",
          "id": "lesson-0490",
          "status": "Heading planned",
          "url": "/education/#lesson-0490",
          "legacy_grid_id": 489
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        {
          "number": 491,
          "title": "Type-Ia Supernovae as Distance Indicators",
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          "id": "lesson-0491",
          "status": "Heading planned",
          "url": "/education/#lesson-0491",
          "legacy_grid_id": 490
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        {
          "number": 492,
          "title": "The Cosmic Distance Ladder",
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          "id": "lesson-0492",
          "status": "Heading planned",
          "url": "/education/#lesson-0492",
          "legacy_grid_id": 491
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        {
          "number": 493,
          "title": "Hubble and Structure-Growth Tensions",
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          "id": "lesson-0493",
          "status": "Heading planned",
          "url": "/education/#lesson-0493",
          "legacy_grid_id": 492
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        {
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          "title": "Inflationary Parameters and Model Dependence",
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          "id": "lesson-0494",
          "status": "Heading planned",
          "url": "/education/#lesson-0494",
          "legacy_grid_id": 493
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        {
          "number": 495,
          "title": "Reheating Scenarios",
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          "id": "lesson-0495",
          "status": "Heading planned",
          "url": "/education/#lesson-0495",
          "legacy_grid_id": 494
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        {
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          "title": "Primordial Nucleosynthesis and Element Abundances",
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          "id": "lesson-0496",
          "status": "Heading planned",
          "url": "/education/#lesson-0496",
          "legacy_grid_id": 495
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      "id": "unit-36",
      "url": "/education/#unit-36"
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    {
      "number": 37,
      "volume": "VIII",
      "title": "The Selection Question — Fine-Tuning and Observers",
      "first": 497,
      "last": 512,
      "prerequisites": [
        17,
        36
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        {
          "number": 497,
          "title": "The Cosmological-Constant Problem",
          "lane": "I",
          "id": "lesson-0497",
          "status": "Heading planned",
          "url": "/education/#lesson-0497",
          "legacy_grid_id": 496
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        {
          "number": 498,
          "title": "Vacuum Energy and Renormalized Quantities",
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          "id": "lesson-0498",
          "status": "Heading planned",
          "url": "/education/#lesson-0498",
          "legacy_grid_id": 497
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        {
          "number": 499,
          "title": "The Electroweak Hierarchy Revisited",
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          "id": "lesson-0499",
          "status": "Heading planned",
          "url": "/education/#lesson-0499",
          "legacy_grid_id": 498
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        {
          "number": 500,
          "title": "The Strong-CP Problem",
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          "id": "lesson-0500",
          "status": "Heading planned",
          "url": "/education/#lesson-0500",
          "legacy_grid_id": 499
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        {
          "number": 501,
          "title": "Axions as a Candidate Solution",
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          "id": "lesson-0501",
          "status": "Heading planned",
          "url": "/education/#lesson-0501",
          "legacy_grid_id": 500
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        {
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          "title": "Multiverse Proposals and Their Status",
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          "status": "Heading planned",
          "url": "/education/#lesson-0502",
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        {
          "number": 503,
          "title": "The String Landscape",
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          "id": "lesson-0503",
          "status": "Heading planned",
          "url": "/education/#lesson-0503",
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        {
          "number": 504,
          "title": "The Measure Problem",
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          "id": "lesson-0504",
          "status": "Heading planned",
          "url": "/education/#lesson-0504",
          "legacy_grid_id": 503
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          "id": "lesson-0505",
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          "url": "/education/#lesson-0505",
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          "url": "/education/#lesson-0506",
          "legacy_grid_id": 505
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          "title": "Observer Selection Effects",
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          "id": "lesson-0507",
          "status": "Heading planned",
          "url": "/education/#lesson-0507",
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          "id": "lesson-0510",
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          "url": "/education/#lesson-0510",
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          "url": "/education/#lesson-0511",
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        {
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          "id": "lesson-0512",
          "status": "Heading planned",
          "url": "/education/#lesson-0512",
          "legacy_grid_id": 511
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      "id": "unit-37",
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    {
      "number": 38,
      "volume": "IX",
      "title": "The Atomic Staircase — Electronic Structure",
      "first": 513,
      "last": 528,
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        9,
        12
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          "title": "The Periodic Table as an Organizing Pattern",
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          "id": "lesson-0513",
          "status": "Heading planned",
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          "legacy_grid_id": 512
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        {
          "number": 514,
          "title": "Electron Configurations",
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          "id": "lesson-0514",
          "status": "Heading planned",
          "url": "/education/#lesson-0514",
          "legacy_grid_id": 513
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        {
          "number": 515,
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          "id": "lesson-0515",
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          "legacy_grid_id": 514
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          "number": 516,
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          "legacy_grid_id": 515
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          "status": "Heading planned",
          "url": "/education/#lesson-0517",
          "legacy_grid_id": 516
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          "number": 518,
          "title": "Ionization Energy Trends",
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          "status": "Heading planned",
          "url": "/education/#lesson-0518",
          "legacy_grid_id": 517
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          "number": 519,
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          "status": "Heading planned",
          "url": "/education/#lesson-0519",
          "legacy_grid_id": 518
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        {
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          "title": "Electronegativity as a Model-Dependent Scale",
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          "id": "lesson-0520",
          "status": "Heading planned",
          "url": "/education/#lesson-0520",
          "legacy_grid_id": 519
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          "title": "The Lanthanide Contraction",
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          "id": "lesson-0523",
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          "status": "Heading planned",
          "url": "/education/#lesson-0524",
          "legacy_grid_id": 523
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          "title": "Selection Rules",
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          "id": "lesson-0525",
          "status": "Heading planned",
          "url": "/education/#lesson-0525",
          "legacy_grid_id": 524
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          "number": 526,
          "title": "Hyperfine Structure",
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          "status": "Heading planned",
          "url": "/education/#lesson-0526",
          "legacy_grid_id": 525
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          "title": "Isotope Shifts",
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          "id": "lesson-0527",
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          "url": "/education/#lesson-0527",
          "legacy_grid_id": 526
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          "url": "/education/#lesson-0528",
          "legacy_grid_id": 527
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      "number": 39,
      "volume": "IX",
      "title": "The Bond Map — Molecules and Solids",
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      "last": 544,
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          "number": 529,
          "title": "From Atomic Orbitals to Molecular Orbitals",
          "lane": "E",
          "id": "lesson-0529",
          "status": "Heading planned",
          "url": "/education/#lesson-0529",
          "legacy_grid_id": 528
        },
        {
          "number": 530,
          "title": "The Linear Combination of Atomic Orbitals",
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          "id": "lesson-0530",
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          "legacy_grid_id": 529
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          "number": 531,
          "title": "Bonding and Antibonding States",
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          "id": "lesson-0531",
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          "legacy_grid_id": 530
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        {
          "number": 532,
          "title": "Bond Order",
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          "id": "lesson-0532",
          "status": "Heading planned",
          "url": "/education/#lesson-0532",
          "legacy_grid_id": 531
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        {
          "number": 533,
          "title": "Hybridization as a Useful Approximation",
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          "status": "Heading planned",
          "url": "/education/#lesson-0533",
          "legacy_grid_id": 532
        },
        {
          "number": 534,
          "title": "VSEPR and Its Domain of Use",
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          "id": "lesson-0534",
          "status": "Heading planned",
          "url": "/education/#lesson-0534",
          "legacy_grid_id": 533
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        {
          "number": 535,
          "title": "Electronegativity and Bond Polarity",
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          "id": "lesson-0535",
          "status": "Heading planned",
          "url": "/education/#lesson-0535",
          "legacy_grid_id": 534
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        {
          "number": 536,
          "title": "Hydrogen Bonding",
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          "id": "lesson-0536",
          "status": "Heading planned",
          "url": "/education/#lesson-0536",
          "legacy_grid_id": 535
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        {
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          "title": "Dispersion and Other Intermolecular Forces",
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          "status": "Heading planned",
          "url": "/education/#lesson-0537",
          "legacy_grid_id": 536
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        {
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          "title": "Metallic Bonding",
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          "id": "lesson-0538",
          "status": "Heading planned",
          "url": "/education/#lesson-0538",
          "legacy_grid_id": 537
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          "number": 539,
          "title": "From Molecules to Energy Bands",
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          "id": "lesson-0539",
          "status": "Heading planned",
          "url": "/education/#lesson-0539",
          "legacy_grid_id": 538
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        {
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          "title": "Conductors, Insulators, and Semiconductors",
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          "id": "lesson-0540",
          "status": "Heading planned",
          "url": "/education/#lesson-0540",
          "legacy_grid_id": 539
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          "number": 541,
          "title": "Doping and Carrier Concentrations",
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          "id": "lesson-0541",
          "status": "Heading planned",
          "url": "/education/#lesson-0541",
          "legacy_grid_id": 540
        },
        {
          "number": 542,
          "title": "The p–n Junction",
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          "id": "lesson-0542",
          "status": "Heading planned",
          "url": "/education/#lesson-0542",
          "legacy_grid_id": 541
        },
        {
          "number": 543,
          "title": "Transistors and Light-Emitting Diodes",
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          "id": "lesson-0543",
          "status": "Heading planned",
          "url": "/education/#lesson-0543",
          "legacy_grid_id": 542
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          "number": 544,
          "title": "Photovoltaics: Turning Excitations Into Useful Current",
          "lane": "E",
          "id": "lesson-0544",
          "status": "Heading planned",
          "url": "/education/#lesson-0544",
          "legacy_grid_id": 543
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      "id": "unit-39",
      "url": "/education/#unit-39"
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    {
      "number": 40,
      "volume": "IX",
      "title": "The Reaction Workshop — Rates, Equilibria, and Design",
      "first": 545,
      "last": 560,
      "prerequisites": [
        7,
        39
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        {
          "number": 545,
          "title": "Reaction Energies and Thermodynamic Bookkeeping",
          "lane": "E",
          "id": "lesson-0545",
          "status": "Heading planned",
          "url": "/education/#lesson-0545",
          "legacy_grid_id": 544
        },
        {
          "number": 546,
          "title": "Gibbs Free Energy",
          "lane": "E",
          "id": "lesson-0546",
          "status": "Heading planned",
          "url": "/education/#lesson-0546",
          "legacy_grid_id": 545
        },
        {
          "number": 547,
          "title": "Chemical Equilibrium",
          "lane": "E",
          "id": "lesson-0547",
          "status": "Heading planned",
          "url": "/education/#lesson-0547",
          "legacy_grid_id": 546
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        {
          "number": 548,
          "title": "Reaction Quotients and Equilibrium Constants",
          "lane": "E",
          "id": "lesson-0548",
          "status": "Heading planned",
          "url": "/education/#lesson-0548",
          "legacy_grid_id": 547
        },
        {
          "number": 549,
          "title": "Reaction Rates and Rate Laws",
          "lane": "E",
          "id": "lesson-0549",
          "status": "Heading planned",
          "url": "/education/#lesson-0549",
          "legacy_grid_id": 548
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        {
          "number": 550,
          "title": "Activation Barriers",
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          "id": "lesson-0550",
          "status": "Heading planned",
          "url": "/education/#lesson-0550",
          "legacy_grid_id": 549
        },
        {
          "number": 551,
          "title": "Catalysis Without Changing Equilibrium",
          "lane": "E",
          "id": "lesson-0551",
          "status": "Heading planned",
          "url": "/education/#lesson-0551",
          "legacy_grid_id": 550
        },
        {
          "number": 552,
          "title": "Enzyme Kinetics",
          "lane": "E",
          "id": "lesson-0552",
          "status": "Heading planned",
          "url": "/education/#lesson-0552",
          "legacy_grid_id": 551
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          "id": "lesson-0553",
          "status": "Heading planned",
          "url": "/education/#lesson-0553",
          "legacy_grid_id": 552
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          "title": "The Nernst Equation",
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          "id": "lesson-0554",
          "status": "Heading planned",
          "url": "/education/#lesson-0554",
          "legacy_grid_id": 553
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          "title": "Batteries and Fuel Cells",
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          "id": "lesson-0555",
          "status": "Heading planned",
          "url": "/education/#lesson-0555",
          "legacy_grid_id": 554
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          "status": "Heading planned",
          "url": "/education/#lesson-0556",
          "legacy_grid_id": 555
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          "title": "Organic Reaction Mechanisms",
          "lane": "E",
          "id": "lesson-0557",
          "status": "Heading planned",
          "url": "/education/#lesson-0557",
          "legacy_grid_id": 556
        },
        {
          "number": 558,
          "title": "Stereochemistry and Chirality",
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          "status": "Heading planned",
          "url": "/education/#lesson-0558",
          "legacy_grid_id": 557
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          "title": "Computational Chemistry and Density-Functional Models",
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          "id": "lesson-0559",
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          "url": "/education/#lesson-0559",
          "legacy_grid_id": 558
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          "number": 560,
          "title": "Drug Design: Prediction, Experiment, and Uncertainty",
          "lane": "E",
          "id": "lesson-0560",
          "status": "Heading planned",
          "url": "/education/#lesson-0560",
          "legacy_grid_id": 559
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      "id": "unit-40",
      "url": "/education/#unit-40"
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    {
      "number": 41,
      "volume": "IX",
      "title": "The Material Palette — Structure and Properties",
      "first": 561,
      "last": 576,
      "prerequisites": [
        26,
        39
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        {
          "number": 561,
          "title": "Crystal Structures",
          "lane": "E",
          "id": "lesson-0561",
          "status": "Heading planned",
          "url": "/education/#lesson-0561",
          "legacy_grid_id": 560
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        {
          "number": 562,
          "title": "Bravais Lattices",
          "lane": "E",
          "id": "lesson-0562",
          "status": "Heading planned",
          "url": "/education/#lesson-0562",
          "legacy_grid_id": 561
        },
        {
          "number": 563,
          "title": "Reciprocal Space",
          "lane": "E",
          "id": "lesson-0563",
          "status": "Heading planned",
          "url": "/education/#lesson-0563",
          "legacy_grid_id": 562
        },
        {
          "number": 564,
          "title": "X-Ray Diffraction",
          "lane": "E",
          "id": "lesson-0564",
          "status": "Heading planned",
          "url": "/education/#lesson-0564",
          "legacy_grid_id": 563
        },
        {
          "number": 565,
          "title": "Bragg's Law",
          "lane": "E",
          "id": "lesson-0565",
          "status": "Heading planned",
          "url": "/education/#lesson-0565",
          "legacy_grid_id": 564
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        {
          "number": 566,
          "title": "Phonon Dispersion",
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          "id": "lesson-0566",
          "status": "Heading planned",
          "url": "/education/#lesson-0566",
          "legacy_grid_id": 565
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        {
          "number": 567,
          "title": "Thermal Properties of Materials",
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          "id": "lesson-0567",
          "status": "Heading planned",
          "url": "/education/#lesson-0567",
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          "id": "lesson-0569",
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          "url": "/education/#lesson-0569",
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        {
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          "title": "Phase Diagrams",
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          "id": "lesson-0570",
          "status": "Heading planned",
          "url": "/education/#lesson-0570",
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          "url": "/education/#lesson-0571",
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          "number": 572,
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          "id": "lesson-0572",
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        {
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          "title": "Polymers and Composites",
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          "id": "lesson-0573",
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          "url": "/education/#lesson-0573",
          "legacy_grid_id": 572
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        {
          "number": 574,
          "title": "Metamaterials and Effective Properties",
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          "id": "lesson-0574",
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          "url": "/education/#lesson-0574",
          "legacy_grid_id": 573
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        {
          "number": 575,
          "title": "Photonic Crystals and Quantum Dots",
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          "id": "lesson-0575",
          "status": "Heading planned",
          "url": "/education/#lesson-0575",
          "legacy_grid_id": 574
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        {
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          "title": "Two-Dimensional Materials and Nanoscale Effects",
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          "id": "lesson-0576",
          "status": "Heading planned",
          "url": "/education/#lesson-0576",
          "legacy_grid_id": 575
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      "id": "unit-41",
      "url": "/education/#unit-41"
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    {
      "number": 42,
      "volume": "X",
      "title": "The Molecular Script — Cells and Biological Information",
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      "last": 592,
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        39,
        40
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        {
          "number": 577,
          "title": "DNA: Structure and Complementary Pairing",
          "lane": "E",
          "id": "lesson-0577",
          "status": "Heading planned",
          "url": "/education/#lesson-0577",
          "legacy_grid_id": 576
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        {
          "number": 578,
          "title": "The Genetic Code",
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          "status": "Heading planned",
          "url": "/education/#lesson-0578",
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        {
          "number": 579,
          "title": "Transcription",
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          "id": "lesson-0579",
          "status": "Heading planned",
          "url": "/education/#lesson-0579",
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        {
          "number": 580,
          "title": "Translation and the Ribosome",
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          "id": "lesson-0580",
          "status": "Heading planned",
          "url": "/education/#lesson-0580",
          "legacy_grid_id": 579
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        {
          "number": 581,
          "title": "Protein Folding",
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          "status": "Heading planned",
          "url": "/education/#lesson-0581",
          "legacy_grid_id": 580
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        {
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          "title": "Free-Energy Landscapes in Folding Models",
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          "status": "Heading planned",
          "url": "/education/#lesson-0582",
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        {
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          "title": "Enzymes as Molecular Catalysts",
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      "number": 43,
      "volume": "X",
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        42
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          "url": "/education/#lesson-0599",
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      "volume": "X",
      "title": "The Living Network — Ecology and Systems Biology",
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        43
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          "status": "Heading planned",
          "url": "/education/#lesson-0619",
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          "title": "Stoichiometric Reaction Networks",
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          "id": "lesson-0620",
          "status": "Heading planned",
          "url": "/education/#lesson-0620",
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          "id": "lesson-0621",
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          "url": "/education/#lesson-0621",
          "legacy_grid_id": 620
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          "id": "lesson-0622",
          "status": "Heading planned",
          "url": "/education/#lesson-0622",
          "legacy_grid_id": 621
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          "id": "lesson-0623",
          "status": "Heading planned",
          "url": "/education/#lesson-0623",
          "legacy_grid_id": 622
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          "id": "lesson-0624",
          "status": "Heading planned",
          "url": "/education/#lesson-0624",
          "legacy_grid_id": 623
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      "id": "unit-44",
      "url": "/education/#unit-44"
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      "number": 45,
      "volume": "X",
      "title": "The Neural Workshop — Signals and Circuits",
      "first": 625,
      "last": 640,
      "prerequisites": [
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        42
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          "title": "Neurons as Excitable Cells",
          "lane": "E",
          "id": "lesson-0625",
          "status": "Heading planned",
          "url": "/education/#lesson-0625",
          "legacy_grid_id": 624
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        {
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          "status": "Heading planned",
          "url": "/education/#lesson-0626",
          "legacy_grid_id": 625
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          "title": "Action Potentials",
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          "id": "lesson-0627",
          "status": "Heading planned",
          "url": "/education/#lesson-0627",
          "legacy_grid_id": 626
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          "number": 628,
          "title": "The Hodgkin–Huxley Model",
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          "id": "lesson-0628",
          "status": "Heading planned",
          "url": "/education/#lesson-0628",
          "legacy_grid_id": 627
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          "number": 629,
          "title": "Synapses and Synaptic Transmission",
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          "id": "lesson-0629",
          "status": "Heading planned",
          "url": "/education/#lesson-0629",
          "legacy_grid_id": 628
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          "id": "lesson-0630",
          "status": "Heading planned",
          "url": "/education/#lesson-0630",
          "legacy_grid_id": 629
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          "id": "lesson-0631",
          "status": "Heading planned",
          "url": "/education/#lesson-0631",
          "legacy_grid_id": 630
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          "title": "Sensory Systems",
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          "id": "lesson-0632",
          "status": "Heading planned",
          "url": "/education/#lesson-0632",
          "legacy_grid_id": 631
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          "title": "Motor Systems",
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          "id": "lesson-0633",
          "status": "Heading planned",
          "url": "/education/#lesson-0633",
          "legacy_grid_id": 632
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          "number": 634,
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          "id": "lesson-0634",
          "status": "Heading planned",
          "url": "/education/#lesson-0634",
          "legacy_grid_id": 633
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          "number": 635,
          "title": "Long-Term Potentiation and Depression",
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          "id": "lesson-0635",
          "status": "Heading planned",
          "url": "/education/#lesson-0635",
          "legacy_grid_id": 634
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          "title": "Hebbian Learning and Its Limits",
          "lane": "E",
          "id": "lesson-0636",
          "status": "Heading planned",
          "url": "/education/#lesson-0636",
          "legacy_grid_id": 635
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          "number": 637,
          "title": "Rate Codes and Temporal Codes",
          "lane": "E",
          "id": "lesson-0637",
          "status": "Heading planned",
          "url": "/education/#lesson-0637",
          "legacy_grid_id": 636
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        {
          "number": 638,
          "title": "Brain Regions and Distributed Function",
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          "id": "lesson-0638",
          "status": "Heading planned",
          "url": "/education/#lesson-0638",
          "legacy_grid_id": 637
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        {
          "number": 639,
          "title": "fMRI, EEG, and What They Measure",
          "lane": "E",
          "id": "lesson-0639",
          "status": "Heading planned",
          "url": "/education/#lesson-0639",
          "legacy_grid_id": 638
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        {
          "number": 640,
          "title": "Connectomics: Structure Is Not Yet a Full Functional Theory",
          "lane": "E",
          "id": "lesson-0640",
          "status": "Heading planned",
          "url": "/education/#lesson-0640",
          "legacy_grid_id": 639
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      "id": "unit-45",
      "url": "/education/#unit-45"
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    {
      "number": 46,
      "volume": "XI",
      "title": "The Connection Atlas — Graph Theory",
      "first": 641,
      "last": 656,
      "prerequisites": [
        16,
        17
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          "number": 641,
          "title": "Graphs: Vertices and Edges",
          "lane": "M",
          "id": "lesson-0641",
          "status": "Heading planned",
          "url": "/education/#lesson-0641",
          "legacy_grid_id": 640
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        {
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          "title": "Walks, Paths, and Cycles",
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          "id": "lesson-0642",
          "status": "Heading planned",
          "url": "/education/#lesson-0642",
          "legacy_grid_id": 641
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          "number": 643,
          "title": "Trees and Spanning Trees",
          "lane": "M",
          "id": "lesson-0643",
          "status": "Heading planned",
          "url": "/education/#lesson-0643",
          "legacy_grid_id": 642
        },
        {
          "number": 644,
          "title": "Planarity",
          "lane": "M",
          "id": "lesson-0644",
          "status": "Heading planned",
          "url": "/education/#lesson-0644",
          "legacy_grid_id": 643
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        {
          "number": 645,
          "title": "Graph Coloring",
          "lane": "M",
          "id": "lesson-0645",
          "status": "Heading planned",
          "url": "/education/#lesson-0645",
          "legacy_grid_id": 644
        },
        {
          "number": 646,
          "title": "Eulerian and Hamiltonian Questions",
          "lane": "M",
          "id": "lesson-0646",
          "status": "Heading planned",
          "url": "/education/#lesson-0646",
          "legacy_grid_id": 645
        },
        {
          "number": 647,
          "title": "Matchings",
          "lane": "M",
          "id": "lesson-0647",
          "status": "Heading planned",
          "url": "/education/#lesson-0647",
          "legacy_grid_id": 646
        },
        {
          "number": 648,
          "title": "Network Flows",
          "lane": "M",
          "id": "lesson-0648",
          "status": "Heading planned",
          "url": "/education/#lesson-0648",
          "legacy_grid_id": 647
        },
        {
          "number": 649,
          "title": "The Graph Laplacian",
          "lane": "M",
          "id": "lesson-0649",
          "status": "Heading planned",
          "url": "/education/#lesson-0649",
          "legacy_grid_id": 648
        },
        {
          "number": 650,
          "title": "Spectral Graph Theory",
          "lane": "M",
          "id": "lesson-0650",
          "status": "Heading planned",
          "url": "/education/#lesson-0650",
          "legacy_grid_id": 649
        },
        {
          "number": 651,
          "title": "Random-Graph Models",
          "lane": "M",
          "id": "lesson-0651",
          "status": "Heading planned",
          "url": "/education/#lesson-0651",
          "legacy_grid_id": 650
        },
        {
          "number": 652,
          "title": "Erdős–Rényi Graphs and Thresholds",
          "lane": "M",
          "id": "lesson-0652",
          "status": "Heading planned",
          "url": "/education/#lesson-0652",
          "legacy_grid_id": 651
        },
        {
          "number": 653,
          "title": "Small-World Structure",
          "lane": "M",
          "id": "lesson-0653",
          "status": "Heading planned",
          "url": "/education/#lesson-0653",
          "legacy_grid_id": 652
        },
        {
          "number": 654,
          "title": "Preferential Attachment and Scale-Free Claims",
          "lane": "M",
          "id": "lesson-0654",
          "status": "Heading planned",
          "url": "/education/#lesson-0654",
          "legacy_grid_id": 653
        },
        {
          "number": 655,
          "title": "Community Detection and Centrality",
          "lane": "M",
          "id": "lesson-0655",
          "status": "Heading planned",
          "url": "/education/#lesson-0655",
          "legacy_grid_id": 654
        },
        {
          "number": 656,
          "title": "Graph Databases and Queries",
          "lane": "M",
          "id": "lesson-0656",
          "status": "Heading planned",
          "url": "/education/#lesson-0656",
          "legacy_grid_id": 655
        }
      ],
      "id": "unit-46",
      "url": "/education/#unit-46"
    },
    {
      "number": 47,
      "volume": "XI",
      "title": "The Network Observatory — Connected Systems",
      "first": 657,
      "last": 672,
      "prerequisites": [
        46,
        50
      ],
      "lessons": [
        {
          "number": 657,
          "title": "Social Networks and Sampling Bias",
          "lane": "E",
          "id": "lesson-0657",
          "status": "Heading planned",
          "url": "/education/#lesson-0657",
          "legacy_grid_id": 656
        },
        {
          "number": 658,
          "title": "Degree Distributions and Power-Law Tests",
          "lane": "E",
          "id": "lesson-0658",
          "status": "Heading planned",
          "url": "/education/#lesson-0658",
          "legacy_grid_id": 657
        },
        {
          "number": 659,
          "title": "Epidemic Spreading on Networks",
          "lane": "E",
          "id": "lesson-0659",
          "status": "Heading planned",
          "url": "/education/#lesson-0659",
          "legacy_grid_id": 658
        },
        {
          "number": 660,
          "title": "SIR and SIS Models",
          "lane": "E",
          "id": "lesson-0660",
          "status": "Heading planned",
          "url": "/education/#lesson-0660",
          "legacy_grid_id": 659
        },
        {
          "number": 661,
          "title": "Percolation",
          "lane": "E",
          "id": "lesson-0661",
          "status": "Heading planned",
          "url": "/education/#lesson-0661",
          "legacy_grid_id": 660
        },
        {
          "number": 662,
          "title": "Network Resilience",
          "lane": "E",
          "id": "lesson-0662",
          "status": "Heading planned",
          "url": "/education/#lesson-0662",
          "legacy_grid_id": 661
        },
        {
          "number": 663,
          "title": "Cascading Failures",
          "lane": "E",
          "id": "lesson-0663",
          "status": "Heading planned",
          "url": "/education/#lesson-0663",
          "legacy_grid_id": 662
        },
        {
          "number": 664,
          "title": "Multilayer Networks",
          "lane": "E",
          "id": "lesson-0664",
          "status": "Heading planned",
          "url": "/education/#lesson-0664",
          "legacy_grid_id": 663
        },
        {
          "number": 665,
          "title": "Temporal Networks",
          "lane": "E",
          "id": "lesson-0665",
          "status": "Heading planned",
          "url": "/education/#lesson-0665",
          "legacy_grid_id": 664
        },
        {
          "number": 666,
          "title": "Network Motifs",
          "lane": "E",
          "id": "lesson-0666",
          "status": "Heading planned",
          "url": "/education/#lesson-0666",
          "legacy_grid_id": 665
        },
        {
          "number": 667,
          "title": "Network Evolution",
          "lane": "E",
          "id": "lesson-0667",
          "status": "Heading planned",
          "url": "/education/#lesson-0667",
          "legacy_grid_id": 666
        },
        {
          "number": 668,
          "title": "Metabolic Networks as a Case Study",
          "lane": "E",
          "id": "lesson-0668",
          "status": "Heading planned",
          "url": "/education/#lesson-0668",
          "legacy_grid_id": 667
        },
        {
          "number": 669,
          "title": "Protein and Gene-Regulatory Networks",
          "lane": "E",
          "id": "lesson-0669",
          "status": "Heading planned",
          "url": "/education/#lesson-0669",
          "legacy_grid_id": 668
        },
        {
          "number": 670,
          "title": "Brain Networks and Their Measurement",
          "lane": "E",
          "id": "lesson-0670",
          "status": "Heading planned",
          "url": "/education/#lesson-0670",
          "legacy_grid_id": 669
        },
        {
          "number": 671,
          "title": "The Internet and the Web as Different Graphs",
          "lane": "E",
          "id": "lesson-0671",
          "status": "Heading planned",
          "url": "/education/#lesson-0671",
          "legacy_grid_id": 670
        },
        {
          "number": 672,
          "title": "Transportation Networks and Design Tradeoffs",
          "lane": "E",
          "id": "lesson-0672",
          "status": "Heading planned",
          "url": "/education/#lesson-0672",
          "legacy_grid_id": 671
        }
      ],
      "id": "unit-47",
      "url": "/education/#unit-47"
    },
    {
      "number": 48,
      "volume": "XI",
      "title": "The Pattern Laboratory — Complex Systems",
      "first": 673,
      "last": 688,
      "prerequisites": [
        4,
        46
      ],
      "lessons": [
        {
          "number": 673,
          "title": "Emergence: Specify the Level of Description",
          "lane": "E",
          "id": "lesson-0673",
          "status": "Heading planned",
          "url": "/education/#lesson-0673",
          "legacy_grid_id": 672
        },
        {
          "number": 674,
          "title": "Self-Organization Under Declared Dynamics",
          "lane": "E",
          "id": "lesson-0674",
          "status": "Heading planned",
          "url": "/education/#lesson-0674",
          "legacy_grid_id": 673
        },
        {
          "number": 675,
          "title": "Cellular Automata",
          "lane": "E",
          "id": "lesson-0675",
          "status": "Heading planned",
          "url": "/education/#lesson-0675",
          "legacy_grid_id": 674
        },
        {
          "number": 676,
          "title": "The Game of Life",
          "lane": "E",
          "id": "lesson-0676",
          "status": "Heading planned",
          "url": "/education/#lesson-0676",
          "legacy_grid_id": 675
        },
        {
          "number": 677,
          "title": "Classifying Cellular-Automaton Behavior",
          "lane": "E",
          "id": "lesson-0677",
          "status": "Heading planned",
          "url": "/education/#lesson-0677",
          "legacy_grid_id": 676
        },
        {
          "number": 678,
          "title": "Agent-Based Models",
          "lane": "E",
          "id": "lesson-0678",
          "status": "Heading planned",
          "url": "/education/#lesson-0678",
          "legacy_grid_id": 677
        },
        {
          "number": 679,
          "title": "Swarm Coordination",
          "lane": "E",
          "id": "lesson-0679",
          "status": "Heading planned",
          "url": "/education/#lesson-0679",
          "legacy_grid_id": 678
        },
        {
          "number": 680,
          "title": "Ant-Inspired Optimization",
          "lane": "E",
          "id": "lesson-0680",
          "status": "Heading planned",
          "url": "/education/#lesson-0680",
          "legacy_grid_id": 679
        },
        {
          "number": 681,
          "title": "Deterministic Chaos",
          "lane": "E",
          "id": "lesson-0681",
          "status": "Heading planned",
          "url": "/education/#lesson-0681",
          "legacy_grid_id": 680
        },
        {
          "number": 682,
          "title": "Strange Attractors",
          "lane": "E",
          "id": "lesson-0682",
          "status": "Heading planned",
          "url": "/education/#lesson-0682",
          "legacy_grid_id": 681
        },
        {
          "number": 683,
          "title": "Lyapunov Exponents",
          "lane": "E",
          "id": "lesson-0683",
          "status": "Heading planned",
          "url": "/education/#lesson-0683",
          "legacy_grid_id": 682
        },
        {
          "number": 684,
          "title": "Bifurcations",
          "lane": "E",
          "id": "lesson-0684",
          "status": "Heading planned",
          "url": "/education/#lesson-0684",
          "legacy_grid_id": 683
        },
        {
          "number": 685,
          "title": "Catastrophe Models and Their Assumptions",
          "lane": "E",
          "id": "lesson-0685",
          "status": "Heading planned",
          "url": "/education/#lesson-0685",
          "legacy_grid_id": 684
        },
        {
          "number": 686,
          "title": "Synergetics and Order Parameters",
          "lane": "E",
          "id": "lesson-0686",
          "status": "Heading planned",
          "url": "/education/#lesson-0686",
          "legacy_grid_id": 685
        },
        {
          "number": 687,
          "title": "Dissipative Structures",
          "lane": "E",
          "id": "lesson-0687",
          "status": "Heading planned",
          "url": "/education/#lesson-0687",
          "legacy_grid_id": 686
        },
        {
          "number": 688,
          "title": "Far-From-Equilibrium Organization",
          "lane": "E",
          "id": "lesson-0688",
          "status": "Heading planned",
          "url": "/education/#lesson-0688",
          "legacy_grid_id": 687
        }
      ],
      "id": "unit-48",
      "url": "/education/#unit-48"
    },
    {
      "number": 49,
      "volume": "XI",
      "title": "The Complexity Compass — Information and Scale",
      "first": 689,
      "last": 704,
      "prerequisites": [
        2,
        4,
        46
      ],
      "lessons": [
        {
          "number": 689,
          "title": "Algorithmic Complexity Revisited",
          "lane": "M",
          "id": "lesson-0689",
          "status": "Heading planned",
          "url": "/education/#lesson-0689",
          "legacy_grid_id": 688
        },
        {
          "number": 690,
          "title": "Compressibility and the Choice of Description Language",
          "lane": "M",
          "id": "lesson-0690",
          "status": "Heading planned",
          "url": "/education/#lesson-0690",
          "legacy_grid_id": 689
        },
        {
          "number": 691,
          "title": "Logical Depth",
          "lane": "M",
          "id": "lesson-0691",
          "status": "Heading planned",
          "url": "/education/#lesson-0691",
          "legacy_grid_id": 690
        },
        {
          "number": 692,
          "title": "Effective Complexity",
          "lane": "M",
          "id": "lesson-0692",
          "status": "Heading planned",
          "url": "/education/#lesson-0692",
          "legacy_grid_id": 691
        },
        {
          "number": 693,
          "title": "Integrated Information as a Proposed Measure",
          "lane": "H",
          "id": "lesson-0693",
          "status": "Heading planned",
          "url": "/education/#lesson-0693",
          "legacy_grid_id": 692
        },
        {
          "number": 694,
          "title": "Causal Emergence: Models and Objections",
          "lane": "M",
          "id": "lesson-0694",
          "status": "Heading planned",
          "url": "/education/#lesson-0694",
          "legacy_grid_id": 693
        },
        {
          "number": 695,
          "title": "Coarse-Graining and Lost Distinctions",
          "lane": "M",
          "id": "lesson-0695",
          "status": "Heading planned",
          "url": "/education/#lesson-0695",
          "legacy_grid_id": 694
        },
        {
          "number": 696,
          "title": "Renormalization as Structured Compression",
          "lane": "M",
          "id": "lesson-0696",
          "status": "Heading planned",
          "url": "/education/#lesson-0696",
          "legacy_grid_id": 695
        },
        {
          "number": 697,
          "title": "Mutual Information in Networks",
          "lane": "M",
          "id": "lesson-0697",
          "status": "Heading planned",
          "url": "/education/#lesson-0697",
          "legacy_grid_id": 696
        },
        {
          "number": 698,
          "title": "Transfer Entropy",
          "lane": "M",
          "id": "lesson-0698",
          "status": "Heading planned",
          "url": "/education/#lesson-0698",
          "legacy_grid_id": 697
        },
        {
          "number": 699,
          "title": "Granger Causality and Predictive Dependence",
          "lane": "M",
          "id": "lesson-0699",
          "status": "Heading planned",
          "url": "/education/#lesson-0699",
          "legacy_grid_id": 698
        },
        {
          "number": 700,
          "title": "Information Geometry",
          "lane": "M",
          "id": "lesson-0700",
          "status": "Heading planned",
          "url": "/education/#lesson-0700",
          "legacy_grid_id": 699
        },
        {
          "number": 701,
          "title": "The Fisher Information Metric",
          "lane": "M",
          "id": "lesson-0701",
          "status": "Heading planned",
          "url": "/education/#lesson-0701",
          "legacy_grid_id": 700
        },
        {
          "number": 702,
          "title": "Natural-Gradient Optimization",
          "lane": "M",
          "id": "lesson-0702",
          "status": "Heading planned",
          "url": "/education/#lesson-0702",
          "legacy_grid_id": 701
        },
        {
          "number": 703,
          "title": "Proposed Cohomological Complexity Measures",
          "lane": "H",
          "id": "lesson-0703",
          "status": "Heading planned",
          "url": "/education/#lesson-0703",
          "legacy_grid_id": 702
        },
        {
          "number": 704,
          "title": "Comparing Measures on Explicit Counterexamples",
          "lane": "M",
          "id": "lesson-0704",
          "status": "Heading planned",
          "url": "/education/#lesson-0704",
          "legacy_grid_id": 703
        }
      ],
      "id": "unit-49",
      "url": "/education/#unit-49"
    },
    {
      "number": 50,
      "volume": "XII",
      "title": "The Evidence Workshop — Statistics and Inference",
      "first": 705,
      "last": 720,
      "prerequisites": [
        2,
        4,
        5
      ],
      "lessons": [
        {
          "number": 705,
          "title": "Bayesian Inference and Prior Assumptions",
          "lane": "M",
          "id": "lesson-0705",
          "status": "Heading planned",
          "url": "/education/#lesson-0705",
          "legacy_grid_id": 704
        },
        {
          "number": 706,
          "title": "Frequentist Inference and Repeated Sampling",
          "lane": "M",
          "id": "lesson-0706",
          "status": "Heading planned",
          "url": "/education/#lesson-0706",
          "legacy_grid_id": 705
        },
        {
          "number": 707,
          "title": "Hypothesis Tests and Error Rates",
          "lane": "M",
          "id": "lesson-0707",
          "status": "Heading planned",
          "url": "/education/#lesson-0707",
          "legacy_grid_id": 706
        },
        {
          "number": 708,
          "title": "Maximum-Likelihood Estimation",
          "lane": "M",
          "id": "lesson-0708",
          "status": "Heading planned",
          "url": "/education/#lesson-0708",
          "legacy_grid_id": 707
        },
        {
          "number": 709,
          "title": "Maximum a Posteriori Estimation",
          "lane": "M",
          "id": "lesson-0709",
          "status": "Heading planned",
          "url": "/education/#lesson-0709",
          "legacy_grid_id": 708
        },
        {
          "number": 710,
          "title": "Conjugate Priors",
          "lane": "M",
          "id": "lesson-0710",
          "status": "Heading planned",
          "url": "/education/#lesson-0710",
          "legacy_grid_id": 709
        },
        {
          "number": 711,
          "title": "Markov-Chain Monte Carlo",
          "lane": "M",
          "id": "lesson-0711",
          "status": "Heading planned",
          "url": "/education/#lesson-0711",
          "legacy_grid_id": 710
        },
        {
          "number": 712,
          "title": "Diagnosing Sampling and Convergence",
          "lane": "M",
          "id": "lesson-0712",
          "status": "Heading planned",
          "url": "/education/#lesson-0712",
          "legacy_grid_id": 711
        },
        {
          "number": 713,
          "title": "Variational Inference",
          "lane": "M",
          "id": "lesson-0713",
          "status": "Heading planned",
          "url": "/education/#lesson-0713",
          "legacy_grid_id": 712
        },
        {
          "number": 714,
          "title": "Model Selection",
          "lane": "M",
          "id": "lesson-0714",
          "status": "Heading planned",
          "url": "/education/#lesson-0714",
          "legacy_grid_id": 713
        },
        {
          "number": 715,
          "title": "AIC and BIC Under Their Assumptions",
          "lane": "M",
          "id": "lesson-0715",
          "status": "Heading planned",
          "url": "/education/#lesson-0715",
          "legacy_grid_id": 714
        },
        {
          "number": 716,
          "title": "Cross-Validation and Data Leakage",
          "lane": "M",
          "id": "lesson-0716",
          "status": "Heading planned",
          "url": "/education/#lesson-0716",
          "legacy_grid_id": 715
        },
        {
          "number": 717,
          "title": "Bootstrap Uncertainty Estimates",
          "lane": "M",
          "id": "lesson-0717",
          "status": "Heading planned",
          "url": "/education/#lesson-0717",
          "legacy_grid_id": 716
        },
        {
          "number": 718,
          "title": "Nonparametric Inference",
          "lane": "M",
          "id": "lesson-0718",
          "status": "Heading planned",
          "url": "/education/#lesson-0718",
          "legacy_grid_id": 717
        },
        {
          "number": 719,
          "title": "Kernel Density Estimation",
          "lane": "M",
          "id": "lesson-0719",
          "status": "Heading planned",
          "url": "/education/#lesson-0719",
          "legacy_grid_id": 718
        },
        {
          "number": 720,
          "title": "Sufficient Statistics and Exponential Families",
          "lane": "M",
          "id": "lesson-0720",
          "status": "Heading planned",
          "url": "/education/#lesson-0720",
          "legacy_grid_id": 719
        }
      ],
      "id": "unit-50",
      "url": "/education/#unit-50"
    },
    {
      "number": 51,
      "volume": "XII",
      "title": "The Learning Circuit — Neural Networks",
      "first": 721,
      "last": 736,
      "prerequisites": [
        4,
        5,
        50
      ],
      "lessons": [
        {
          "number": 721,
          "title": "The Perceptron",
          "lane": "A",
          "id": "lesson-0721",
          "status": "Heading planned",
          "url": "/education/#lesson-0721",
          "legacy_grid_id": 720
        },
        {
          "number": 722,
          "title": "Differentiable Computation Graphs",
          "lane": "A",
          "id": "lesson-0722",
          "status": "Heading planned",
          "url": "/education/#lesson-0722",
          "legacy_grid_id": 721
        },
        {
          "number": 723,
          "title": "Backpropagation",
          "lane": "A",
          "id": "lesson-0723",
          "status": "Heading planned",
          "url": "/education/#lesson-0723",
          "legacy_grid_id": 722
        },
        {
          "number": 724,
          "title": "Activation Functions",
          "lane": "A",
          "id": "lesson-0724",
          "status": "Heading planned",
          "url": "/education/#lesson-0724",
          "legacy_grid_id": 723
        },
        {
          "number": 725,
          "title": "Universal Approximation: Existence Is Not Learnability",
          "lane": "A",
          "id": "lesson-0725",
          "status": "Heading planned",
          "url": "/education/#lesson-0725",
          "legacy_grid_id": 724
        },
        {
          "number": 726,
          "title": "Convolutional Neural Networks",
          "lane": "A",
          "id": "lesson-0726",
          "status": "Heading planned",
          "url": "/education/#lesson-0726",
          "legacy_grid_id": 725
        },
        {
          "number": 727,
          "title": "Recurrent Neural Networks",
          "lane": "A",
          "id": "lesson-0727",
          "status": "Heading planned",
          "url": "/education/#lesson-0727",
          "legacy_grid_id": 726
        },
        {
          "number": 728,
          "title": "Long Short-Term Memory Networks",
          "lane": "A",
          "id": "lesson-0728",
          "status": "Heading planned",
          "url": "/education/#lesson-0728",
          "legacy_grid_id": 727
        },
        {
          "number": 729,
          "title": "Batch Normalization",
          "lane": "A",
          "id": "lesson-0729",
          "status": "Heading planned",
          "url": "/education/#lesson-0729",
          "legacy_grid_id": 728
        },
        {
          "number": 730,
          "title": "Dropout",
          "lane": "A",
          "id": "lesson-0730",
          "status": "Heading planned",
          "url": "/education/#lesson-0730",
          "legacy_grid_id": 729
        },
        {
          "number": 731,
          "title": "Residual Connections",
          "lane": "A",
          "id": "lesson-0731",
          "status": "Heading planned",
          "url": "/education/#lesson-0731",
          "legacy_grid_id": 730
        },
        {
          "number": 732,
          "title": "Stochastic Gradient Descent and Adam",
          "lane": "A",
          "id": "lesson-0732",
          "status": "Heading planned",
          "url": "/education/#lesson-0732",
          "legacy_grid_id": 731
        },
        {
          "number": 733,
          "title": "Loss Landscapes",
          "lane": "A",
          "id": "lesson-0733",
          "status": "Heading planned",
          "url": "/education/#lesson-0733",
          "legacy_grid_id": 732
        },
        {
          "number": 734,
          "title": "Generalization and Distribution Shift",
          "lane": "A",
          "id": "lesson-0734",
          "status": "Heading planned",
          "url": "/education/#lesson-0734",
          "legacy_grid_id": 733
        },
        {
          "number": 735,
          "title": "Double Descent and Neural Tangent Models",
          "lane": "A",
          "id": "lesson-0735",
          "status": "Heading planned",
          "url": "/education/#lesson-0735",
          "legacy_grid_id": 734
        },
        {
          "number": 736,
          "title": "The Lottery-Ticket Hypothesis",
          "lane": "H",
          "id": "lesson-0736",
          "status": "Heading planned",
          "url": "/education/#lesson-0736",
          "legacy_grid_id": 735
        }
      ],
      "id": "unit-51",
      "url": "/education/#unit-51"
    },
    {
      "number": 52,
      "volume": "XII",
      "title": "The Representation Studio — Deep Learning",
      "first": 737,
      "last": 752,
      "prerequisites": [
        51
      ],
      "lessons": [
        {
          "number": 737,
          "title": "Attention as a Computed Weighting Rule",
          "lane": "A",
          "id": "lesson-0737",
          "status": "Heading planned",
          "url": "/education/#lesson-0737",
          "legacy_grid_id": 736
        },
        {
          "number": 738,
          "title": "Transformer Architecture",
          "lane": "A",
          "id": "lesson-0738",
          "status": "Heading planned",
          "url": "/education/#lesson-0738",
          "legacy_grid_id": 737
        },
        {
          "number": 739,
          "title": "Encoder and Decoder Language Models",
          "lane": "A",
          "id": "lesson-0739",
          "status": "Heading planned",
          "url": "/education/#lesson-0739",
          "legacy_grid_id": 738
        },
        {
          "number": 740,
          "title": "Tokenization and Representation Choices",
          "lane": "A",
          "id": "lesson-0740",
          "status": "Heading planned",
          "url": "/education/#lesson-0740",
          "legacy_grid_id": 739
        },
        {
          "number": 741,
          "title": "Scaling Laws and Their Fitted Domains",
          "lane": "A",
          "id": "lesson-0741",
          "status": "Heading planned",
          "url": "/education/#lesson-0741",
          "legacy_grid_id": 740
        },
        {
          "number": 742,
          "title": "Apparent Emergence and Measurement Choices",
          "lane": "A",
          "id": "lesson-0742",
          "status": "Heading planned",
          "url": "/education/#lesson-0742",
          "legacy_grid_id": 741
        },
        {
          "number": 743,
          "title": "Reasoning Traces and Their Reliability Limits",
          "lane": "A",
          "id": "lesson-0743",
          "status": "Heading planned",
          "url": "/education/#lesson-0743",
          "legacy_grid_id": 742
        },
        {
          "number": 744,
          "title": "In-Context Learning",
          "lane": "A",
          "id": "lesson-0744",
          "status": "Heading planned",
          "url": "/education/#lesson-0744",
          "legacy_grid_id": 743
        },
        {
          "number": 745,
          "title": "Preference Training and Reinforcement Learning From Feedback",
          "lane": "A",
          "id": "lesson-0745",
          "status": "Heading planned",
          "url": "/education/#lesson-0745",
          "legacy_grid_id": 744
        },
        {
          "number": 746,
          "title": "Diffusion Models",
          "lane": "A",
          "id": "lesson-0746",
          "status": "Heading planned",
          "url": "/education/#lesson-0746",
          "legacy_grid_id": 745
        },
        {
          "number": 747,
          "title": "Score Matching",
          "lane": "A",
          "id": "lesson-0747",
          "status": "Heading planned",
          "url": "/education/#lesson-0747",
          "legacy_grid_id": 746
        },
        {
          "number": 748,
          "title": "Normalizing Flows",
          "lane": "A",
          "id": "lesson-0748",
          "status": "Heading planned",
          "url": "/education/#lesson-0748",
          "legacy_grid_id": 747
        },
        {
          "number": 749,
          "title": "Variational Autoencoders",
          "lane": "A",
          "id": "lesson-0749",
          "status": "Heading planned",
          "url": "/education/#lesson-0749",
          "legacy_grid_id": 748
        },
        {
          "number": 750,
          "title": "Generative Adversarial Networks",
          "lane": "A",
          "id": "lesson-0750",
          "status": "Heading planned",
          "url": "/education/#lesson-0750",
          "legacy_grid_id": 749
        },
        {
          "number": 751,
          "title": "Graph Neural Networks",
          "lane": "A",
          "id": "lesson-0751",
          "status": "Heading planned",
          "url": "/education/#lesson-0751",
          "legacy_grid_id": 750
        },
        {
          "number": 752,
          "title": "Equivariance and Geometric Deep Learning",
          "lane": "A",
          "id": "lesson-0752",
          "status": "Heading planned",
          "url": "/education/#lesson-0752",
          "legacy_grid_id": 751
        }
      ],
      "id": "unit-52",
      "url": "/education/#unit-52"
    },
    {
      "number": 53,
      "volume": "XII",
      "title": "The Agency Test — Intelligence, Control, and Alignment",
      "first": 753,
      "last": 768,
      "prerequisites": [
        18,
        50,
        51
      ],
      "lessons": [
        {
          "number": 753,
          "title": "What Would Count as General Intelligence?",
          "lane": "R",
          "id": "lesson-0753",
          "status": "Heading planned",
          "url": "/education/#lesson-0753",
          "legacy_grid_id": 752
        },
        {
          "number": 754,
          "title": "Intelligence Measures and Their Assumptions",
          "lane": "R",
          "id": "lesson-0754",
          "status": "Heading planned",
          "url": "/education/#lesson-0754",
          "legacy_grid_id": 753
        },
        {
          "number": 755,
          "title": "Benchmark Design and Held-Out Evaluation",
          "lane": "R",
          "id": "lesson-0755",
          "status": "Heading planned",
          "url": "/education/#lesson-0755",
          "legacy_grid_id": 754
        },
        {
          "number": 756,
          "title": "Reward Hacking and Specification Gaming",
          "lane": "R",
          "id": "lesson-0756",
          "status": "Heading planned",
          "url": "/education/#lesson-0756",
          "legacy_grid_id": 755
        },
        {
          "number": 757,
          "title": "Outer and Inner Alignment Questions",
          "lane": "R",
          "id": "lesson-0757",
          "status": "Heading planned",
          "url": "/education/#lesson-0757",
          "legacy_grid_id": 756
        },
        {
          "number": 758,
          "title": "Limits of Preference-Based Training",
          "lane": "R",
          "id": "lesson-0758",
          "status": "Heading planned",
          "url": "/education/#lesson-0758",
          "legacy_grid_id": 757
        },
        {
          "number": 759,
          "title": "Rule-Guided Training and Constitutional Methods",
          "lane": "R",
          "id": "lesson-0759",
          "status": "Heading planned",
          "url": "/education/#lesson-0759",
          "legacy_grid_id": 758
        },
        {
          "number": 760,
          "title": "Interpretability: Explanation Versus Evidence",
          "lane": "R",
          "id": "lesson-0760",
          "status": "Heading planned",
          "url": "/education/#lesson-0760",
          "legacy_grid_id": 759
        },
        {
          "number": 761,
          "title": "Mechanistic Interpretability",
          "lane": "R",
          "id": "lesson-0761",
          "status": "Heading planned",
          "url": "/education/#lesson-0761",
          "legacy_grid_id": 760
        },
        {
          "number": 762,
          "title": "Superposition and Feature Representations",
          "lane": "R",
          "id": "lesson-0762",
          "status": "Heading planned",
          "url": "/education/#lesson-0762",
          "legacy_grid_id": 761
        },
        {
          "number": 763,
          "title": "Circuits in Trained Models",
          "lane": "R",
          "id": "lesson-0763",
          "status": "Heading planned",
          "url": "/education/#lesson-0763",
          "legacy_grid_id": 762
        },
        {
          "number": 764,
          "title": "Scaling Hypotheses and Compute Budgets",
          "lane": "H",
          "id": "lesson-0764",
          "status": "Heading planned",
          "url": "/education/#lesson-0764",
          "legacy_grid_id": 763
        },
        {
          "number": 765,
          "title": "Multimodal Learning",
          "lane": "R",
          "id": "lesson-0765",
          "status": "Heading planned",
          "url": "/education/#lesson-0765",
          "legacy_grid_id": 764
        },
        {
          "number": 766,
          "title": "Embodied and Tool-Using Agents",
          "lane": "R",
          "id": "lesson-0766",
          "status": "Heading planned",
          "url": "/education/#lesson-0766",
          "legacy_grid_id": 765
        },
        {
          "number": 767,
          "title": "Agent Architectures and Control Boundaries",
          "lane": "R",
          "id": "lesson-0767",
          "status": "Heading planned",
          "url": "/education/#lesson-0767",
          "legacy_grid_id": 766
        },
        {
          "number": 768,
          "title": "The Proposed Anomalon Architecture: A Testable Specification",
          "lane": "H",
          "id": "lesson-0768",
          "status": "Heading planned",
          "url": "/education/#lesson-0768",
          "legacy_grid_id": 767
        }
      ],
      "id": "unit-53",
      "url": "/education/#unit-53"
    },
    {
      "number": 54,
      "volume": "XIII",
      "title": "The Experience Debate — Theories of Consciousness",
      "first": 769,
      "last": 784,
      "prerequisites": [
        17,
        45
      ],
      "lessons": [
        {
          "number": 769,
          "title": "The Hard Problem as an Open Question",
          "lane": "I",
          "id": "lesson-0769",
          "status": "Heading planned",
          "url": "/education/#lesson-0769",
          "legacy_grid_id": 768
        },
        {
          "number": 770,
          "title": "The Explanatory Gap",
          "lane": "I",
          "id": "lesson-0770",
          "status": "Heading planned",
          "url": "/education/#lesson-0770",
          "legacy_grid_id": 769
        },
        {
          "number": 771,
          "title": "Qualia and First-Person Reports",
          "lane": "I",
          "id": "lesson-0771",
          "status": "Heading planned",
          "url": "/education/#lesson-0771",
          "legacy_grid_id": 770
        },
        {
          "number": 772,
          "title": "Mary's Room",
          "lane": "I",
          "id": "lesson-0772",
          "status": "Heading planned",
          "url": "/education/#lesson-0772",
          "legacy_grid_id": 771
        },
        {
          "number": 773,
          "title": "Zombie Thought Experiments and Modal Assumptions",
          "lane": "I",
          "id": "lesson-0773",
          "status": "Heading planned",
          "url": "/education/#lesson-0773",
          "legacy_grid_id": 772
        },
        {
          "number": 774,
          "title": "Integrated Information Theory",
          "lane": "I",
          "id": "lesson-0774",
          "status": "Heading planned",
          "url": "/education/#lesson-0774",
          "legacy_grid_id": 773
        },
        {
          "number": 775,
          "title": "Global Workspace Theories",
          "lane": "I",
          "id": "lesson-0775",
          "status": "Heading planned",
          "url": "/education/#lesson-0775",
          "legacy_grid_id": 774
        },
        {
          "number": 776,
          "title": "Higher-Order Theories",
          "lane": "I",
          "id": "lesson-0776",
          "status": "Heading planned",
          "url": "/education/#lesson-0776",
          "legacy_grid_id": 775
        },
        {
          "number": 777,
          "title": "Predictive Processing",
          "lane": "I",
          "id": "lesson-0777",
          "status": "Heading planned",
          "url": "/education/#lesson-0777",
          "legacy_grid_id": 776
        },
        {
          "number": 778,
          "title": "The Free-Energy Principle and Its Scope",
          "lane": "I",
          "id": "lesson-0778",
          "status": "Heading planned",
          "url": "/education/#lesson-0778",
          "legacy_grid_id": 777
        },
        {
          "number": 779,
          "title": "Active Inference",
          "lane": "I",
          "id": "lesson-0779",
          "status": "Heading planned",
          "url": "/education/#lesson-0779",
          "legacy_grid_id": 778
        },
        {
          "number": 780,
          "title": "Panpsychism",
          "lane": "I",
          "id": "lesson-0780",
          "status": "Heading planned",
          "url": "/education/#lesson-0780",
          "legacy_grid_id": 779
        },
        {
          "number": 781,
          "title": "Neutral Monism",
          "lane": "I",
          "id": "lesson-0781",
          "status": "Heading planned",
          "url": "/education/#lesson-0781",
          "legacy_grid_id": 780
        },
        {
          "number": 782,
          "title": "Property Dualism",
          "lane": "I",
          "id": "lesson-0782",
          "status": "Heading planned",
          "url": "/education/#lesson-0782",
          "legacy_grid_id": 781
        },
        {
          "number": 783,
          "title": "Functionalism",
          "lane": "I",
          "id": "lesson-0783",
          "status": "Heading planned",
          "url": "/education/#lesson-0783",
          "legacy_grid_id": 782
        },
        {
          "number": 784,
          "title": "Biological Naturalism and Competing Explanations",
          "lane": "I",
          "id": "lesson-0784",
          "status": "Heading planned",
          "url": "/education/#lesson-0784",
          "legacy_grid_id": 783
        }
      ],
      "id": "unit-54",
      "url": "/education/#unit-54"
    },
    {
      "number": 55,
      "volume": "XIII",
      "title": "The Situated Mind — Perception and Cognition",
      "first": 785,
      "last": 800,
      "prerequisites": [
        45,
        50
      ],
      "lessons": [
        {
          "number": 785,
          "title": "Visual Perception and Inference",
          "lane": "E",
          "id": "lesson-0785",
          "status": "Heading planned",
          "url": "/education/#lesson-0785",
          "legacy_grid_id": 784
        },
        {
          "number": 786,
          "title": "The Binding Problem",
          "lane": "E",
          "id": "lesson-0786",
          "status": "Heading planned",
          "url": "/education/#lesson-0786",
          "legacy_grid_id": 785
        },
        {
          "number": 787,
          "title": "Attention and Selection",
          "lane": "E",
          "id": "lesson-0787",
          "status": "Heading planned",
          "url": "/education/#lesson-0787",
          "legacy_grid_id": 786
        },
        {
          "number": 788,
          "title": "Working Memory",
          "lane": "E",
          "id": "lesson-0788",
          "status": "Heading planned",
          "url": "/education/#lesson-0788",
          "legacy_grid_id": 787
        },
        {
          "number": 789,
          "title": "Cognitive Architectures",
          "lane": "E",
          "id": "lesson-0789",
          "status": "Heading planned",
          "url": "/education/#lesson-0789",
          "legacy_grid_id": 788
        },
        {
          "number": 790,
          "title": "ACT-R and SOAR as Explicit Models",
          "lane": "E",
          "id": "lesson-0790",
          "status": "Heading planned",
          "url": "/education/#lesson-0790",
          "legacy_grid_id": 789
        },
        {
          "number": 791,
          "title": "Bayesian-Brain Hypotheses",
          "lane": "H",
          "id": "lesson-0791",
          "status": "Heading planned",
          "url": "/education/#lesson-0791",
          "legacy_grid_id": 790
        },
        {
          "number": 792,
          "title": "Prediction Error and Model Updating",
          "lane": "E",
          "id": "lesson-0792",
          "status": "Heading planned",
          "url": "/education/#lesson-0792",
          "legacy_grid_id": 791
        },
        {
          "number": 793,
          "title": "Embodied Cognition",
          "lane": "E",
          "id": "lesson-0793",
          "status": "Heading planned",
          "url": "/education/#lesson-0793",
          "legacy_grid_id": 792
        },
        {
          "number": 794,
          "title": "Enactivism",
          "lane": "E",
          "id": "lesson-0794",
          "status": "Heading planned",
          "url": "/education/#lesson-0794",
          "legacy_grid_id": 793
        },
        {
          "number": 795,
          "title": "The Four-E Family of Cognition",
          "lane": "E",
          "id": "lesson-0795",
          "status": "Heading planned",
          "url": "/education/#lesson-0795",
          "legacy_grid_id": 794
        },
        {
          "number": 796,
          "title": "Extended-Mind Arguments",
          "lane": "E",
          "id": "lesson-0796",
          "status": "Heading planned",
          "url": "/education/#lesson-0796",
          "legacy_grid_id": 795
        },
        {
          "number": 797,
          "title": "Cognitive Scaffolding",
          "lane": "E",
          "id": "lesson-0797",
          "status": "Heading planned",
          "url": "/education/#lesson-0797",
          "legacy_grid_id": 796
        },
        {
          "number": 798,
          "title": "Situated Cognition",
          "lane": "E",
          "id": "lesson-0798",
          "status": "Heading planned",
          "url": "/education/#lesson-0798",
          "legacy_grid_id": 797
        },
        {
          "number": 799,
          "title": "Ecological Psychology",
          "lane": "E",
          "id": "lesson-0799",
          "status": "Heading planned",
          "url": "/education/#lesson-0799",
          "legacy_grid_id": 798
        },
        {
          "number": 800,
          "title": "Affordances and Action Possibilities",
          "lane": "E",
          "id": "lesson-0800",
          "status": "Heading planned",
          "url": "/education/#lesson-0800",
          "legacy_grid_id": 799
        }
      ],
      "id": "unit-55",
      "url": "/education/#unit-55"
    },
    {
      "number": 56,
      "volume": "XIII",
      "title": "The Meaning Workshop — Language and Thought",
      "first": 801,
      "last": 816,
      "prerequisites": [
        17,
        45
      ],
      "lessons": [
        {
          "number": 801,
          "title": "What Is a Grammar?",
          "lane": "I",
          "id": "lesson-0801",
          "status": "Heading planned",
          "url": "/education/#lesson-0801",
          "legacy_grid_id": 800
        },
        {
          "number": 802,
          "title": "Universal-Grammar Proposals and Their Critics",
          "lane": "H",
          "id": "lesson-0802",
          "status": "Heading planned",
          "url": "/education/#lesson-0802",
          "legacy_grid_id": 801
        },
        {
          "number": 803,
          "title": "Construction Grammar",
          "lane": "I",
          "id": "lesson-0803",
          "status": "Heading planned",
          "url": "/education/#lesson-0803",
          "legacy_grid_id": 802
        },
        {
          "number": 804,
          "title": "Cognitive Linguistics",
          "lane": "I",
          "id": "lesson-0804",
          "status": "Heading planned",
          "url": "/education/#lesson-0804",
          "legacy_grid_id": 803
        },
        {
          "number": 805,
          "title": "Linguistic Relativity: Claims and Tests",
          "lane": "I",
          "id": "lesson-0805",
          "status": "Heading planned",
          "url": "/education/#lesson-0805",
          "legacy_grid_id": 804
        },
        {
          "number": 806,
          "title": "Computational Linguistics",
          "lane": "I",
          "id": "lesson-0806",
          "status": "Heading planned",
          "url": "/education/#lesson-0806",
          "legacy_grid_id": 805
        },
        {
          "number": 807,
          "title": "Formal Semantics",
          "lane": "I",
          "id": "lesson-0807",
          "status": "Heading planned",
          "url": "/education/#lesson-0807",
          "legacy_grid_id": 806
        },
        {
          "number": 808,
          "title": "Pragmatics and Context",
          "lane": "I",
          "id": "lesson-0808",
          "status": "Heading planned",
          "url": "/education/#lesson-0808",
          "legacy_grid_id": 807
        },
        {
          "number": 809,
          "title": "Language Acquisition",
          "lane": "I",
          "id": "lesson-0809",
          "status": "Heading planned",
          "url": "/education/#lesson-0809",
          "legacy_grid_id": 808
        },
        {
          "number": 810,
          "title": "Bilingualism",
          "lane": "I",
          "id": "lesson-0810",
          "status": "Heading planned",
          "url": "/education/#lesson-0810",
          "legacy_grid_id": 809
        },
        {
          "number": 811,
          "title": "Language Evolution",
          "lane": "I",
          "id": "lesson-0811",
          "status": "Heading planned",
          "url": "/education/#lesson-0811",
          "legacy_grid_id": 810
        },
        {
          "number": 812,
          "title": "Inner Speech",
          "lane": "I",
          "id": "lesson-0812",
          "status": "Heading planned",
          "url": "/education/#lesson-0812",
          "legacy_grid_id": 811
        },
        {
          "number": 813,
          "title": "Thought Without Language",
          "lane": "I",
          "id": "lesson-0813",
          "status": "Heading planned",
          "url": "/education/#lesson-0813",
          "legacy_grid_id": 812
        },
        {
          "number": 814,
          "title": "Mathematical Cognition",
          "lane": "I",
          "id": "lesson-0814",
          "status": "Heading planned",
          "url": "/education/#lesson-0814",
          "legacy_grid_id": 813
        },
        {
          "number": 815,
          "title": "Spatial Cognition",
          "lane": "I",
          "id": "lesson-0815",
          "status": "Heading planned",
          "url": "/education/#lesson-0815",
          "legacy_grid_id": 814
        },
        {
          "number": 816,
          "title": "Metaphor as a Tool and a Source of Confusion",
          "lane": "I",
          "id": "lesson-0816",
          "status": "Heading planned",
          "url": "/education/#lesson-0816",
          "legacy_grid_id": 815
        }
      ],
      "id": "unit-56",
      "url": "/education/#unit-56"
    },
    {
      "number": 57,
      "volume": "XIII",
      "title": "The Consciousness Bridge — Physical Models and Open Claims",
      "first": 817,
      "last": 832,
      "prerequisites": [
        9,
        23,
        45,
        54
      ],
      "lessons": [
        {
          "number": 817,
          "title": "Physical Theories of Consciousness: What Would They Explain?",
          "lane": "H",
          "id": "lesson-0817",
          "status": "Heading planned",
          "url": "/education/#lesson-0817",
          "legacy_grid_id": 816
        },
        {
          "number": 818,
          "title": "Orchestrated-Reduction Proposals",
          "lane": "H",
          "id": "lesson-0818",
          "status": "Heading planned",
          "url": "/education/#lesson-0818",
          "legacy_grid_id": 817
        },
        {
          "number": 819,
          "title": "Quantum-Mind Claims and Their Evidence Requirements",
          "lane": "H",
          "id": "lesson-0819",
          "status": "Heading planned",
          "url": "/education/#lesson-0819",
          "legacy_grid_id": 818
        },
        {
          "number": 820,
          "title": "Decoherence Timescales in Biological Models",
          "lane": "H",
          "id": "lesson-0820",
          "status": "Heading planned",
          "url": "/education/#lesson-0820",
          "legacy_grid_id": 819
        },
        {
          "number": 821,
          "title": "Neural Correlates Versus Explanatory Mechanisms",
          "lane": "H",
          "id": "lesson-0821",
          "status": "Heading planned",
          "url": "/education/#lesson-0821",
          "legacy_grid_id": 820
        },
        {
          "number": 822,
          "title": "Causal Perturbations and Consciousness Studies",
          "lane": "H",
          "id": "lesson-0822",
          "status": "Heading planned",
          "url": "/education/#lesson-0822",
          "legacy_grid_id": 821
        },
        {
          "number": 823,
          "title": "A Proposed Cohomological Description of Experience",
          "lane": "H",
          "id": "lesson-0823",
          "status": "Heading planned",
          "url": "/education/#lesson-0823",
          "legacy_grid_id": 822
        },
        {
          "number": 824,
          "title": "Why Nonzero H1 Does Not Establish Consciousness",
          "lane": "H",
          "id": "lesson-0824",
          "status": "Heading planned",
          "url": "/education/#lesson-0824",
          "legacy_grid_id": 823
        },
        {
          "number": 825,
          "title": "Integrated Information and Structural Invariants",
          "lane": "H",
          "id": "lesson-0825",
          "status": "Heading planned",
          "url": "/education/#lesson-0825",
          "legacy_grid_id": 824
        },
        {
          "number": 826,
          "title": "Causal Models of Reports and Experience",
          "lane": "H",
          "id": "lesson-0826",
          "status": "Heading planned",
          "url": "/education/#lesson-0826",
          "legacy_grid_id": 825
        },
        {
          "number": 827,
          "title": "Time Perception",
          "lane": "H",
          "id": "lesson-0827",
          "status": "Heading planned",
          "url": "/education/#lesson-0827",
          "legacy_grid_id": 826
        },
        {
          "number": 828,
          "title": "Binding and Topological Analogies",
          "lane": "H",
          "id": "lesson-0828",
          "status": "Heading planned",
          "url": "/education/#lesson-0828",
          "legacy_grid_id": 827
        },
        {
          "number": 829,
          "title": "Neural Complexity Measures",
          "lane": "H",
          "id": "lesson-0829",
          "status": "Heading planned",
          "url": "/education/#lesson-0829",
          "legacy_grid_id": 828
        },
        {
          "number": 830,
          "title": "Comparing Proposed Mind–Physics Bridges",
          "lane": "H",
          "id": "lesson-0830",
          "status": "Heading planned",
          "url": "/education/#lesson-0830",
          "legacy_grid_id": 829
        },
        {
          "number": 831,
          "title": "A Consciousness Model for Anomalon: Assumptions First",
          "lane": "H",
          "id": "lesson-0831",
          "status": "Heading planned",
          "url": "/education/#lesson-0831",
          "legacy_grid_id": 830
        },
        {
          "number": 832,
          "title": "Which Consciousness Claims Remain Unproved?",
          "lane": "H",
          "id": "lesson-0832",
          "status": "Heading planned",
          "url": "/education/#lesson-0832",
          "legacy_grid_id": 831
        }
      ],
      "id": "unit-57",
      "url": "/education/#unit-57"
    },
    {
      "number": 58,
      "volume": "XIV",
      "title": "The Measurement Debate — Quantum Interpretation",
      "first": 833,
      "last": 848,
      "prerequisites": [
        9,
        17
      ],
      "lessons": [
        {
          "number": 833,
          "title": "Why Measurement Raises an Interpretive Question",
          "lane": "I",
          "id": "lesson-0833",
          "status": "Heading planned",
          "url": "/education/#lesson-0833",
          "legacy_grid_id": 832
        },
        {
          "number": 834,
          "title": "Decoherence: What It Explains and What It Leaves Open",
          "lane": "I",
          "id": "lesson-0834",
          "status": "Heading planned",
          "url": "/education/#lesson-0834",
          "legacy_grid_id": 833
        },
        {
          "number": 835,
          "title": "Wigner's Friend",
          "lane": "I",
          "id": "lesson-0835",
          "status": "Heading planned",
          "url": "/education/#lesson-0835",
          "legacy_grid_id": 834
        },
        {
          "number": 836,
          "title": "Extended Wigner-Friend Scenarios",
          "lane": "I",
          "id": "lesson-0836",
          "status": "Heading planned",
          "url": "/education/#lesson-0836",
          "legacy_grid_id": 835
        },
        {
          "number": 837,
          "title": "Quantum Darwinism",
          "lane": "I",
          "id": "lesson-0837",
          "status": "Heading planned",
          "url": "/education/#lesson-0837",
          "legacy_grid_id": 836
        },
        {
          "number": 838,
          "title": "Quantum Bayesian Interpretations",
          "lane": "I",
          "id": "lesson-0838",
          "status": "Heading planned",
          "url": "/education/#lesson-0838",
          "legacy_grid_id": 837
        },
        {
          "number": 839,
          "title": "Relational Quantum Mechanics",
          "lane": "I",
          "id": "lesson-0839",
          "status": "Heading planned",
          "url": "/education/#lesson-0839",
          "legacy_grid_id": 838
        },
        {
          "number": 840,
          "title": "Consistent-Histories Approaches",
          "lane": "I",
          "id": "lesson-0840",
          "status": "Heading planned",
          "url": "/education/#lesson-0840",
          "legacy_grid_id": 839
        },
        {
          "number": 841,
          "title": "Modal Interpretations",
          "lane": "I",
          "id": "lesson-0841",
          "status": "Heading planned",
          "url": "/education/#lesson-0841",
          "legacy_grid_id": 840
        },
        {
          "number": 842,
          "title": "Everettian Branching",
          "lane": "I",
          "id": "lesson-0842",
          "status": "Heading planned",
          "url": "/education/#lesson-0842",
          "legacy_grid_id": 841
        },
        {
          "number": 843,
          "title": "The Preferred-Basis Question",
          "lane": "I",
          "id": "lesson-0843",
          "status": "Heading planned",
          "url": "/education/#lesson-0843",
          "legacy_grid_id": 842
        },
        {
          "number": 844,
          "title": "The Environment as a Source of Records",
          "lane": "I",
          "id": "lesson-0844",
          "status": "Heading planned",
          "url": "/education/#lesson-0844",
          "legacy_grid_id": 843
        },
        {
          "number": 845,
          "title": "Quantum States for Closed Systems",
          "lane": "I",
          "id": "lesson-0845",
          "status": "Heading planned",
          "url": "/education/#lesson-0845",
          "legacy_grid_id": 844
        },
        {
          "number": 846,
          "title": "Empirical Equivalence Between Interpretations",
          "lane": "I",
          "id": "lesson-0846",
          "status": "Heading planned",
          "url": "/education/#lesson-0846",
          "legacy_grid_id": 845
        },
        {
          "number": 847,
          "title": "Assumptions in Observer-Consistency Arguments",
          "lane": "I",
          "id": "lesson-0847",
          "status": "Heading planned",
          "url": "/education/#lesson-0847",
          "legacy_grid_id": 846
        },
        {
          "number": 848,
          "title": "Comparing Interpretations Without Declaring a Winner by Analogy",
          "lane": "I",
          "id": "lesson-0848",
          "status": "Heading planned",
          "url": "/education/#lesson-0848",
          "legacy_grid_id": 847
        }
      ],
      "id": "unit-58",
      "url": "/education/#unit-58"
    },
    {
      "number": 59,
      "volume": "XIV",
      "title": "The Choice Question — Agency and Determinism",
      "first": 849,
      "last": 864,
      "prerequisites": [
        17,
        45,
        54
      ],
      "lessons": [
        {
          "number": 849,
          "title": "Determinism and Laplace's Demon",
          "lane": "I",
          "id": "lesson-0849",
          "status": "Heading planned",
          "url": "/education/#lesson-0849",
          "legacy_grid_id": 848
        },
        {
          "number": 850,
          "title": "Chaos Is Not Indeterminism",
          "lane": "I",
          "id": "lesson-0850",
          "status": "Heading planned",
          "url": "/education/#lesson-0850",
          "legacy_grid_id": 849
        },
        {
          "number": 851,
          "title": "Quantum Randomness and Its Interpretations",
          "lane": "I",
          "id": "lesson-0851",
          "status": "Heading planned",
          "url": "/education/#lesson-0851",
          "legacy_grid_id": 850
        },
        {
          "number": 852,
          "title": "Compatibilism",
          "lane": "I",
          "id": "lesson-0852",
          "status": "Heading planned",
          "url": "/education/#lesson-0852",
          "legacy_grid_id": 851
        },
        {
          "number": 853,
          "title": "Libertarian Accounts of Free Will",
          "lane": "I",
          "id": "lesson-0853",
          "status": "Heading planned",
          "url": "/education/#lesson-0853",
          "legacy_grid_id": 852
        },
        {
          "number": 854,
          "title": "Hard Determinism",
          "lane": "I",
          "id": "lesson-0854",
          "status": "Heading planned",
          "url": "/education/#lesson-0854",
          "legacy_grid_id": 853
        },
        {
          "number": 855,
          "title": "Frankfurt Cases",
          "lane": "I",
          "id": "lesson-0855",
          "status": "Heading planned",
          "url": "/education/#lesson-0855",
          "legacy_grid_id": 854
        },
        {
          "number": 856,
          "title": "Moral Responsibility and Reasons",
          "lane": "I",
          "id": "lesson-0856",
          "status": "Heading planned",
          "url": "/education/#lesson-0856",
          "legacy_grid_id": 855
        },
        {
          "number": 857,
          "title": "Neuroscience of Decision",
          "lane": "I",
          "id": "lesson-0857",
          "status": "Heading planned",
          "url": "/education/#lesson-0857",
          "legacy_grid_id": 856
        },
        {
          "number": 858,
          "title": "Libet-Style Experiments",
          "lane": "I",
          "id": "lesson-0858",
          "status": "Heading planned",
          "url": "/education/#lesson-0858",
          "legacy_grid_id": 857
        },
        {
          "number": 859,
          "title": "Readiness Potentials and Alternative Analyses",
          "lane": "I",
          "id": "lesson-0859",
          "status": "Heading planned",
          "url": "/education/#lesson-0859",
          "legacy_grid_id": 858
        },
        {
          "number": 860,
          "title": "Predictive-Brain Accounts of Action",
          "lane": "I",
          "id": "lesson-0860",
          "status": "Heading planned",
          "url": "/education/#lesson-0860",
          "legacy_grid_id": 859
        },
        {
          "number": 861,
          "title": "Agency as a Model of Goal-Directed Control",
          "lane": "I",
          "id": "lesson-0861",
          "status": "Heading planned",
          "url": "/education/#lesson-0861",
          "legacy_grid_id": 860
        },
        {
          "number": 862,
          "title": "Autonomy and Constraints",
          "lane": "I",
          "id": "lesson-0862",
          "status": "Heading planned",
          "url": "/education/#lesson-0862",
          "legacy_grid_id": 861
        },
        {
          "number": 863,
          "title": "Causal Structure and Intervention",
          "lane": "I",
          "id": "lesson-0863",
          "status": "Heading planned",
          "url": "/education/#lesson-0863",
          "legacy_grid_id": 862
        },
        {
          "number": 864,
          "title": "What an Experiment Could and Could Not Settle About Choice",
          "lane": "I",
          "id": "lesson-0864",
          "status": "Heading planned",
          "url": "/education/#lesson-0864",
          "legacy_grid_id": 863
        }
      ],
      "id": "unit-59",
      "url": "/education/#unit-59"
    },
    {
      "number": 60,
      "volume": "XIV",
      "title": "The Direction of Time — Reversibility and Memory",
      "first": 865,
      "last": 880,
      "prerequisites": [
        7,
        13,
        58
      ],
      "lessons": [
        {
          "number": 865,
          "title": "Entropy Increase and Macroscopic Time Direction",
          "lane": "I",
          "id": "lesson-0865",
          "status": "Heading planned",
          "url": "/education/#lesson-0865",
          "legacy_grid_id": 864
        },
        {
          "number": 866,
          "title": "Boltzmann's H-Theorem and Its Assumptions",
          "lane": "I",
          "id": "lesson-0866",
          "status": "Heading planned",
          "url": "/education/#lesson-0866",
          "legacy_grid_id": 865
        },
        {
          "number": 867,
          "title": "Loschmidt's Reversibility Challenge",
          "lane": "I",
          "id": "lesson-0867",
          "status": "Heading planned",
          "url": "/education/#lesson-0867",
          "legacy_grid_id": 866
        },
        {
          "number": 868,
          "title": "Recurrence in Finite and Bounded Systems",
          "lane": "I",
          "id": "lesson-0868",
          "status": "Heading planned",
          "url": "/education/#lesson-0868",
          "legacy_grid_id": 867
        },
        {
          "number": 869,
          "title": "The Past Hypothesis",
          "lane": "H",
          "id": "lesson-0869",
          "status": "Heading planned",
          "url": "/education/#lesson-0869",
          "legacy_grid_id": 868
        },
        {
          "number": 870,
          "title": "Gravitational Entropy",
          "lane": "I",
          "id": "lesson-0870",
          "status": "Heading planned",
          "url": "/education/#lesson-0870",
          "legacy_grid_id": 869
        },
        {
          "number": 871,
          "title": "The Weyl-Curvature Hypothesis",
          "lane": "H",
          "id": "lesson-0871",
          "status": "Heading planned",
          "url": "/education/#lesson-0871",
          "legacy_grid_id": 870
        },
        {
          "number": 872,
          "title": "Quantum Time Evolution and Reversibility",
          "lane": "I",
          "id": "lesson-0872",
          "status": "Heading planned",
          "url": "/education/#lesson-0872",
          "legacy_grid_id": 871
        },
        {
          "number": 873,
          "title": "Decoherence and the Formation of Records",
          "lane": "I",
          "id": "lesson-0873",
          "status": "Heading planned",
          "url": "/education/#lesson-0873",
          "legacy_grid_id": 872
        },
        {
          "number": 874,
          "title": "CP Violation and Time-Reversal Questions",
          "lane": "I",
          "id": "lesson-0874",
          "status": "Heading planned",
          "url": "/education/#lesson-0874",
          "legacy_grid_id": 873
        },
        {
          "number": 875,
          "title": "Cosmological Arrows of Time",
          "lane": "I",
          "id": "lesson-0875",
          "status": "Heading planned",
          "url": "/education/#lesson-0875",
          "legacy_grid_id": 874
        },
        {
          "number": 876,
          "title": "Memory and Psychological Time",
          "lane": "I",
          "id": "lesson-0876",
          "status": "Heading planned",
          "url": "/education/#lesson-0876",
          "legacy_grid_id": 875
        },
        {
          "number": 877,
          "title": "The Block-Universe View",
          "lane": "I",
          "id": "lesson-0877",
          "status": "Heading planned",
          "url": "/education/#lesson-0877",
          "legacy_grid_id": 876
        },
        {
          "number": 878,
          "title": "Presentism and Growing-Block Views",
          "lane": "I",
          "id": "lesson-0878",
          "status": "Heading planned",
          "url": "/education/#lesson-0878",
          "legacy_grid_id": 877
        },
        {
          "number": 879,
          "title": "Time in Causal-Set Models",
          "lane": "I",
          "id": "lesson-0879",
          "status": "Heading planned",
          "url": "/education/#lesson-0879",
          "legacy_grid_id": 878
        },
        {
          "number": 880,
          "title": "Pachner Moves as a Supplied Discrete-Time Model",
          "lane": "I",
          "id": "lesson-0880",
          "status": "Heading planned",
          "url": "/education/#lesson-0880",
          "legacy_grid_id": 879
        }
      ],
      "id": "unit-60",
      "url": "/education/#unit-60"
    },
    {
      "number": 61,
      "volume": "XIV",
      "title": "The Existence Question — Explanation and Its Limits",
      "first": 881,
      "last": 896,
      "prerequisites": [
        16,
        17,
        58
      ],
      "lessons": [
        {
          "number": 881,
          "title": "Why Ask Why There Is Something?",
          "lane": "I",
          "id": "lesson-0881",
          "status": "Heading planned",
          "url": "/education/#lesson-0881",
          "legacy_grid_id": 880
        },
        {
          "number": 882,
          "title": "The Principle of Sufficient Reason",
          "lane": "I",
          "id": "lesson-0882",
          "status": "Heading planned",
          "url": "/education/#lesson-0882",
          "legacy_grid_id": 881
        },
        {
          "number": 883,
          "title": "Necessary-Being Arguments",
          "lane": "I",
          "id": "lesson-0883",
          "status": "Heading planned",
          "url": "/education/#lesson-0883",
          "legacy_grid_id": 882
        },
        {
          "number": 884,
          "title": "The Mathematical-Universe Hypothesis",
          "lane": "H",
          "id": "lesson-0884",
          "status": "Heading planned",
          "url": "/education/#lesson-0884",
          "legacy_grid_id": 883
        },
        {
          "number": 885,
          "title": "Modal Realism",
          "lane": "I",
          "id": "lesson-0885",
          "status": "Heading planned",
          "url": "/education/#lesson-0885",
          "legacy_grid_id": 884
        },
        {
          "number": 886,
          "title": "Quantum-Cosmology Uses of Nothing",
          "lane": "I",
          "id": "lesson-0886",
          "status": "Heading planned",
          "url": "/education/#lesson-0886",
          "legacy_grid_id": 885
        },
        {
          "number": 887,
          "title": "Tunneling Proposals and Their Background Assumptions",
          "lane": "H",
          "id": "lesson-0887",
          "status": "Heading planned",
          "url": "/education/#lesson-0887",
          "legacy_grid_id": 886
        },
        {
          "number": 888,
          "title": "No-Boundary Cosmological Proposals",
          "lane": "H",
          "id": "lesson-0888",
          "status": "Heading planned",
          "url": "/education/#lesson-0888",
          "legacy_grid_id": 887
        },
        {
          "number": 889,
          "title": "Self-Explaining-Universe Claims",
          "lane": "I",
          "id": "lesson-0889",
          "status": "Heading planned",
          "url": "/education/#lesson-0889",
          "legacy_grid_id": 888
        },
        {
          "number": 890,
          "title": "Bootstrapping and Circular Explanation",
          "lane": "I",
          "id": "lesson-0890",
          "status": "Heading planned",
          "url": "/education/#lesson-0890",
          "legacy_grid_id": 889
        },
        {
          "number": 891,
          "title": "Strange Loops and Self-Reference",
          "lane": "I",
          "id": "lesson-0891",
          "status": "Heading planned",
          "url": "/education/#lesson-0891",
          "legacy_grid_id": 890
        },
        {
          "number": 892,
          "title": "Fecundity Principles as Declared Proposals",
          "lane": "H",
          "id": "lesson-0892",
          "status": "Heading planned",
          "url": "/education/#lesson-0892",
          "legacy_grid_id": 891
        },
        {
          "number": 893,
          "title": "Self-Subsumption as a Formal Research Question",
          "lane": "I",
          "id": "lesson-0893",
          "status": "Heading planned",
          "url": "/education/#lesson-0893",
          "legacy_grid_id": 892
        },
        {
          "number": 894,
          "title": "The Proposed Instability of the Void",
          "lane": "H",
          "id": "lesson-0894",
          "status": "Heading planned",
          "url": "/education/#lesson-0894",
          "legacy_grid_id": 893
        },
        {
          "number": 895,
          "title": "Distinguishing an Empty Model From Absolute Nothing",
          "lane": "I",
          "id": "lesson-0895",
          "status": "Heading planned",
          "url": "/education/#lesson-0895",
          "legacy_grid_id": 894
        },
        {
          "number": 896,
          "title": "What Would Count as an Explanation of Existence?",
          "lane": "I",
          "id": "lesson-0896",
          "status": "Heading planned",
          "url": "/education/#lesson-0896",
          "legacy_grid_id": 895
        }
      ],
      "id": "unit-61",
      "url": "/education/#unit-61"
    },
    {
      "number": 62,
      "volume": "XV",
      "title": "The Quantum Workshop — Devices and Applications",
      "first": 897,
      "last": 912,
      "prerequisites": [
        9,
        19
      ],
      "lessons": [
        {
          "number": 897,
          "title": "Superconducting Quantum Hardware",
          "lane": "A",
          "id": "lesson-0897",
          "status": "Heading planned",
          "url": "/education/#lesson-0897",
          "legacy_grid_id": 896
        },
        {
          "number": 898,
          "title": "Trapped-Ion Quantum Hardware",
          "lane": "A",
          "id": "lesson-0898",
          "status": "Heading planned",
          "url": "/education/#lesson-0898",
          "legacy_grid_id": 897
        },
        {
          "number": 899,
          "title": "Photonic Quantum Hardware",
          "lane": "A",
          "id": "lesson-0899",
          "status": "Heading planned",
          "url": "/education/#lesson-0899",
          "legacy_grid_id": 898
        },
        {
          "number": 900,
          "title": "Topological Hardware Proposals",
          "lane": "H",
          "id": "lesson-0900",
          "status": "Heading planned",
          "url": "/education/#lesson-0900",
          "legacy_grid_id": 899
        },
        {
          "number": 901,
          "title": "Quantum Algorithms Beyond Search and Factoring",
          "lane": "A",
          "id": "lesson-0901",
          "status": "Heading planned",
          "url": "/education/#lesson-0901",
          "legacy_grid_id": 900
        },
        {
          "number": 902,
          "title": "The Variational Quantum Eigensolver",
          "lane": "A",
          "id": "lesson-0902",
          "status": "Heading planned",
          "url": "/education/#lesson-0902",
          "legacy_grid_id": 901
        },
        {
          "number": 903,
          "title": "Quantum Approximate Optimization",
          "lane": "A",
          "id": "lesson-0903",
          "status": "Heading planned",
          "url": "/education/#lesson-0903",
          "legacy_grid_id": 902
        },
        {
          "number": 904,
          "title": "Digital Quantum Simulation",
          "lane": "A",
          "id": "lesson-0904",
          "status": "Heading planned",
          "url": "/education/#lesson-0904",
          "legacy_grid_id": 903
        },
        {
          "number": 905,
          "title": "Analog Quantum Simulation",
          "lane": "A",
          "id": "lesson-0905",
          "status": "Heading planned",
          "url": "/education/#lesson-0905",
          "legacy_grid_id": 904
        },
        {
          "number": 906,
          "title": "Quantum Chemistry on Quantum Devices",
          "lane": "A",
          "id": "lesson-0906",
          "status": "Heading planned",
          "url": "/education/#lesson-0906",
          "legacy_grid_id": 905
        },
        {
          "number": 907,
          "title": "Quantum Communication",
          "lane": "A",
          "id": "lesson-0907",
          "status": "Heading planned",
          "url": "/education/#lesson-0907",
          "legacy_grid_id": 906
        },
        {
          "number": 908,
          "title": "Quantum-Network Architectures",
          "lane": "A",
          "id": "lesson-0908",
          "status": "Heading planned",
          "url": "/education/#lesson-0908",
          "legacy_grid_id": 907
        },
        {
          "number": 909,
          "title": "Quantum-Sensing Applications",
          "lane": "A",
          "id": "lesson-0909",
          "status": "Heading planned",
          "url": "/education/#lesson-0909",
          "legacy_grid_id": 908
        },
        {
          "number": 910,
          "title": "Metrology With an Explicit Resource Budget",
          "lane": "A",
          "id": "lesson-0910",
          "status": "Heading planned",
          "url": "/education/#lesson-0910",
          "legacy_grid_id": 909
        },
        {
          "number": 911,
          "title": "Assessing Quantum-Advantage Claims",
          "lane": "A",
          "id": "lesson-0911",
          "status": "Heading planned",
          "url": "/education/#lesson-0911",
          "legacy_grid_id": 910
        },
        {
          "number": 912,
          "title": "Post-Quantum Cryptography",
          "lane": "A",
          "id": "lesson-0912",
          "status": "Heading planned",
          "url": "/education/#lesson-0912",
          "legacy_grid_id": 911
        }
      ],
      "id": "unit-62",
      "url": "/education/#unit-62"
    },
    {
      "number": 63,
      "volume": "XV",
      "title": "The Molecular Workshop — Biotechnology and Nanotechnology",
      "first": 913,
      "last": 928,
      "prerequisites": [
        39,
        42
      ],
      "lessons": [
        {
          "number": 913,
          "title": "DNA Origami",
          "lane": "A",
          "id": "lesson-0913",
          "status": "Heading planned",
          "url": "/education/#lesson-0913",
          "legacy_grid_id": 912
        },
        {
          "number": 914,
          "title": "Protein Design",
          "lane": "A",
          "id": "lesson-0914",
          "status": "Heading planned",
          "url": "/education/#lesson-0914",
          "legacy_grid_id": 913
        },
        {
          "number": 915,
          "title": "Protein-Structure Prediction and Its Limits",
          "lane": "A",
          "id": "lesson-0915",
          "status": "Heading planned",
          "url": "/education/#lesson-0915",
          "legacy_grid_id": 914
        },
        {
          "number": 916,
          "title": "Computational Drug Discovery",
          "lane": "A",
          "id": "lesson-0916",
          "status": "Heading planned",
          "url": "/education/#lesson-0916",
          "legacy_grid_id": 915
        },
        {
          "number": 917,
          "title": "Gene Therapy",
          "lane": "A",
          "id": "lesson-0917",
          "status": "Heading planned",
          "url": "/education/#lesson-0917",
          "legacy_grid_id": 916
        },
        {
          "number": 918,
          "title": "Optogenetics",
          "lane": "A",
          "id": "lesson-0918",
          "status": "Heading planned",
          "url": "/education/#lesson-0918",
          "legacy_grid_id": 917
        },
        {
          "number": 919,
          "title": "Brain–Computer Interfaces",
          "lane": "A",
          "id": "lesson-0919",
          "status": "Heading planned",
          "url": "/education/#lesson-0919",
          "legacy_grid_id": 918
        },
        {
          "number": 920,
          "title": "Neural Implants",
          "lane": "A",
          "id": "lesson-0920",
          "status": "Heading planned",
          "url": "/education/#lesson-0920",
          "legacy_grid_id": 919
        },
        {
          "number": 921,
          "title": "Synthetic Cells",
          "lane": "A",
          "id": "lesson-0921",
          "status": "Heading planned",
          "url": "/education/#lesson-0921",
          "legacy_grid_id": 920
        },
        {
          "number": 922,
          "title": "Molecular Motors",
          "lane": "A",
          "id": "lesson-0922",
          "status": "Heading planned",
          "url": "/education/#lesson-0922",
          "legacy_grid_id": 921
        },
        {
          "number": 923,
          "title": "Nanomachines",
          "lane": "A",
          "id": "lesson-0923",
          "status": "Heading planned",
          "url": "/education/#lesson-0923",
          "legacy_grid_id": 922
        },
        {
          "number": 924,
          "title": "Self-Assembly",
          "lane": "A",
          "id": "lesson-0924",
          "status": "Heading planned",
          "url": "/education/#lesson-0924",
          "legacy_grid_id": 923
        },
        {
          "number": 925,
          "title": "Engineering Metamaterials",
          "lane": "A",
          "id": "lesson-0925",
          "status": "Heading planned",
          "url": "/education/#lesson-0925",
          "legacy_grid_id": 924
        },
        {
          "number": 926,
          "title": "Programmable Matter",
          "lane": "A",
          "id": "lesson-0926",
          "status": "Heading planned",
          "url": "/education/#lesson-0926",
          "legacy_grid_id": 925
        },
        {
          "number": 927,
          "title": "Quantum Effects in Photosynthesis and Navigation Models",
          "lane": "A",
          "id": "lesson-0927",
          "status": "Heading planned",
          "url": "/education/#lesson-0927",
          "legacy_grid_id": 926
        },
        {
          "number": 928,
          "title": "Enzyme Tunneling and the Scope of Quantum Biology",
          "lane": "A",
          "id": "lesson-0928",
          "status": "Heading planned",
          "url": "/education/#lesson-0928",
          "legacy_grid_id": 927
        }
      ],
      "id": "unit-63",
      "url": "/education/#unit-63"
    },
    {
      "number": 64,
      "volume": "XV",
      "title": "The Civilization Horizon — Space and Long-Term Design",
      "first": 929,
      "last": 944,
      "prerequisites": [
        6,
        10,
        13
      ],
      "lessons": [
        {
          "number": 929,
          "title": "Rocket Propulsion",
          "lane": "A",
          "id": "lesson-0929",
          "status": "Heading planned",
          "url": "/education/#lesson-0929",
          "legacy_grid_id": 928
        },
        {
          "number": 930,
          "title": "Orbital Mechanics",
          "lane": "A",
          "id": "lesson-0930",
          "status": "Heading planned",
          "url": "/education/#lesson-0930",
          "legacy_grid_id": 929
        },
        {
          "number": 931,
          "title": "Space Habitats",
          "lane": "A",
          "id": "lesson-0931",
          "status": "Heading planned",
          "url": "/education/#lesson-0931",
          "legacy_grid_id": 930
        },
        {
          "number": 932,
          "title": "Terraforming as a Long-Term Engineering Proposal",
          "lane": "H",
          "id": "lesson-0932",
          "status": "Heading planned",
          "url": "/education/#lesson-0932",
          "legacy_grid_id": 931
        },
        {
          "number": 933,
          "title": "Civilization Energy Scales",
          "lane": "A",
          "id": "lesson-0933",
          "status": "Heading planned",
          "url": "/education/#lesson-0933",
          "legacy_grid_id": 932
        },
        {
          "number": 934,
          "title": "Stellar-Energy Collection Proposals",
          "lane": "H",
          "id": "lesson-0934",
          "status": "Heading planned",
          "url": "/education/#lesson-0934",
          "legacy_grid_id": 933
        },
        {
          "number": 935,
          "title": "Interstellar Travel Constraints",
          "lane": "A",
          "id": "lesson-0935",
          "status": "Heading planned",
          "url": "/education/#lesson-0935",
          "legacy_grid_id": 934
        },
        {
          "number": 936,
          "title": "Relativistic Starship Models",
          "lane": "A",
          "id": "lesson-0936",
          "status": "Heading planned",
          "url": "/education/#lesson-0936",
          "legacy_grid_id": 935
        },
        {
          "number": 937,
          "title": "Warp-Metric Proposals and Unmet Physical Conditions",
          "lane": "H",
          "id": "lesson-0937",
          "status": "Heading planned",
          "url": "/education/#lesson-0937",
          "legacy_grid_id": 936
        },
        {
          "number": 938,
          "title": "Traversable-Wormhole Models and Their Requirements",
          "lane": "A",
          "id": "lesson-0938",
          "status": "Heading planned",
          "url": "/education/#lesson-0938",
          "legacy_grid_id": 937
        },
        {
          "number": 939,
          "title": "Gravitational Assists",
          "lane": "A",
          "id": "lesson-0939",
          "status": "Heading planned",
          "url": "/education/#lesson-0939",
          "legacy_grid_id": 938
        },
        {
          "number": 940,
          "title": "Space-Elevator Materials and Stability",
          "lane": "A",
          "id": "lesson-0940",
          "status": "Heading planned",
          "url": "/education/#lesson-0940",
          "legacy_grid_id": 939
        },
        {
          "number": 941,
          "title": "Asteroid Resources and Extraction Models",
          "lane": "A",
          "id": "lesson-0941",
          "status": "Heading planned",
          "url": "/education/#lesson-0941",
          "legacy_grid_id": 940
        },
        {
          "number": 942,
          "title": "In-Situ Resource Utilization",
          "lane": "A",
          "id": "lesson-0942",
          "status": "Heading planned",
          "url": "/education/#lesson-0942",
          "legacy_grid_id": 941
        },
        {
          "number": 943,
          "title": "Space-Based Solar Power",
          "lane": "A",
          "id": "lesson-0943",
          "status": "Heading planned",
          "url": "/education/#lesson-0943",
          "legacy_grid_id": 942
        },
        {
          "number": 944,
          "title": "Cosmic-Ray Shielding",
          "lane": "A",
          "id": "lesson-0944",
          "status": "Heading planned",
          "url": "/education/#lesson-0944",
          "legacy_grid_id": 943
        }
      ],
      "id": "unit-64",
      "url": "/education/#unit-64"
    },
    {
      "number": 65,
      "volume": "XV",
      "title": "The Human–Machine Interface — Identity and Collaboration",
      "first": 945,
      "last": 960,
      "prerequisites": [
        45,
        53,
        54
      ],
      "lessons": [
        {
          "number": 945,
          "title": "Human–AI Collaboration",
          "lane": "H",
          "id": "lesson-0945",
          "status": "Heading planned",
          "url": "/education/#lesson-0945",
          "legacy_grid_id": 944
        },
        {
          "number": 946,
          "title": "Tools for Augmented Cognition",
          "lane": "H",
          "id": "lesson-0946",
          "status": "Heading planned",
          "url": "/education/#lesson-0946",
          "legacy_grid_id": 945
        },
        {
          "number": 947,
          "title": "Advanced Brain–Computer Interfaces",
          "lane": "H",
          "id": "lesson-0947",
          "status": "Heading planned",
          "url": "/education/#lesson-0947",
          "legacy_grid_id": 946
        },
        {
          "number": 948,
          "title": "High-Bandwidth Neural-Interface Proposals",
          "lane": "H",
          "id": "lesson-0948",
          "status": "Heading planned",
          "url": "/education/#lesson-0948",
          "legacy_grid_id": 947
        },
        {
          "number": 949,
          "title": "Whole-Brain Emulation as an Uncompleted Programme",
          "lane": "H",
          "id": "lesson-0949",
          "status": "Heading planned",
          "url": "/education/#lesson-0949",
          "legacy_grid_id": 948
        },
        {
          "number": 950,
          "title": "Substrate-Independence Arguments",
          "lane": "H",
          "id": "lesson-0950",
          "status": "Heading planned",
          "url": "/education/#lesson-0950",
          "legacy_grid_id": 949
        },
        {
          "number": 951,
          "title": "Digital-Consciousness Claims and Their Missing Tests",
          "lane": "H",
          "id": "lesson-0951",
          "status": "Heading planned",
          "url": "/education/#lesson-0951",
          "legacy_grid_id": 950
        },
        {
          "number": 952,
          "title": "Virtual Worlds With Declared Physical Rules",
          "lane": "H",
          "id": "lesson-0952",
          "status": "Heading planned",
          "url": "/education/#lesson-0952",
          "legacy_grid_id": 951
        },
        {
          "number": 953,
          "title": "Simulation Fidelity and Observable Error",
          "lane": "H",
          "id": "lesson-0953",
          "status": "Heading planned",
          "url": "/education/#lesson-0953",
          "legacy_grid_id": 952
        },
        {
          "number": 954,
          "title": "The Proposed Anomalon Interface",
          "lane": "H",
          "id": "lesson-0954",
          "status": "Heading planned",
          "url": "/education/#lesson-0954",
          "legacy_grid_id": 953
        },
        {
          "number": 955,
          "title": "Mind-Uploading Scenarios",
          "lane": "H",
          "id": "lesson-0955",
          "status": "Heading planned",
          "url": "/education/#lesson-0955",
          "legacy_grid_id": 954
        },
        {
          "number": 956,
          "title": "Identity Continuity Across Copies",
          "lane": "H",
          "id": "lesson-0956",
          "status": "Heading planned",
          "url": "/education/#lesson-0956",
          "legacy_grid_id": 955
        },
        {
          "number": 957,
          "title": "The Computational Ship of Theseus",
          "lane": "H",
          "id": "lesson-0957",
          "status": "Heading planned",
          "url": "/education/#lesson-0957",
          "legacy_grid_id": 956
        },
        {
          "number": 958,
          "title": "Consent, Ownership, and Cognitive Data",
          "lane": "H",
          "id": "lesson-0958",
          "status": "Heading planned",
          "url": "/education/#lesson-0958",
          "legacy_grid_id": 957
        },
        {
          "number": 959,
          "title": "Agency Boundaries in Human–Machine Systems",
          "lane": "H",
          "id": "lesson-0959",
          "status": "Heading planned",
          "url": "/education/#lesson-0959",
          "legacy_grid_id": 958
        },
        {
          "number": 960,
          "title": "Evaluating an Interface Without Assuming It Creates Experience",
          "lane": "H",
          "id": "lesson-0960",
          "status": "Heading planned",
          "url": "/education/#lesson-0960",
          "legacy_grid_id": 959
        }
      ],
      "id": "unit-65",
      "url": "/education/#unit-65"
    },
    {
      "number": 66,
      "volume": "XVI",
      "title": "The Unification Frontier — Candidate Physical Frameworks",
      "first": 961,
      "last": 976,
      "prerequisites": [
        11,
        13,
        31,
        33
      ],
      "lessons": [
        {
          "number": 961,
          "title": "Grand Unification: What Would Be Unified?",
          "lane": "R",
          "id": "lesson-0961",
          "status": "Heading planned",
          "url": "/education/#lesson-0961",
          "legacy_grid_id": 960
        },
        {
          "number": 962,
          "title": "SU(5) Models",
          "lane": "R",
          "id": "lesson-0962",
          "status": "Heading planned",
          "url": "/education/#lesson-0962",
          "legacy_grid_id": 961
        },
        {
          "number": 963,
          "title": "SO(10) Models",
          "lane": "R",
          "id": "lesson-0963",
          "status": "Heading planned",
          "url": "/education/#lesson-0963",
          "legacy_grid_id": 962
        },
        {
          "number": 964,
          "title": "E6 Models",
          "lane": "R",
          "id": "lesson-0964",
          "status": "Heading planned",
          "url": "/education/#lesson-0964",
          "legacy_grid_id": 963
        },
        {
          "number": 965,
          "title": "Proton-Decay Tests",
          "lane": "R",
          "id": "lesson-0965",
          "status": "Heading planned",
          "url": "/education/#lesson-0965",
          "legacy_grid_id": 964
        },
        {
          "number": 966,
          "title": "Magnetic Monopoles in Unified Models",
          "lane": "R",
          "id": "lesson-0966",
          "status": "Heading planned",
          "url": "/education/#lesson-0966",
          "legacy_grid_id": 965
        },
        {
          "number": 967,
          "title": "String-Theoretic Unification Programmes",
          "lane": "R",
          "id": "lesson-0967",
          "status": "Heading planned",
          "url": "/education/#lesson-0967",
          "legacy_grid_id": 966
        },
        {
          "number": 968,
          "title": "M-Theory: Motivations and Open Formulation",
          "lane": "R",
          "id": "lesson-0968",
          "status": "Heading planned",
          "url": "/education/#lesson-0968",
          "legacy_grid_id": 967
        },
        {
          "number": 969,
          "title": "Brane-World Models",
          "lane": "R",
          "id": "lesson-0969",
          "status": "Heading planned",
          "url": "/education/#lesson-0969",
          "legacy_grid_id": 968
        },
        {
          "number": 970,
          "title": "Landscape Selection Problems",
          "lane": "R",
          "id": "lesson-0970",
          "status": "Heading planned",
          "url": "/education/#lesson-0970",
          "legacy_grid_id": 969
        },
        {
          "number": 971,
          "title": "The Swampland Programme",
          "lane": "R",
          "id": "lesson-0971",
          "status": "Heading planned",
          "url": "/education/#lesson-0971",
          "legacy_grid_id": 970
        },
        {
          "number": 972,
          "title": "Scattering Amplitudes and Positive Geometry",
          "lane": "R",
          "id": "lesson-0972",
          "status": "Heading planned",
          "url": "/education/#lesson-0972",
          "legacy_grid_id": 971
        },
        {
          "number": 973,
          "title": "Twistor Approaches",
          "lane": "R",
          "id": "lesson-0973",
          "status": "Heading planned",
          "url": "/education/#lesson-0973",
          "legacy_grid_id": 972
        },
        {
          "number": 974,
          "title": "Causal-Fermion-System Proposals",
          "lane": "H",
          "id": "lesson-0974",
          "status": "Heading planned",
          "url": "/education/#lesson-0974",
          "legacy_grid_id": 973
        },
        {
          "number": 975,
          "title": "Loop, Spin-Foam, and Group-Field Comparisons",
          "lane": "R",
          "id": "lesson-0975",
          "status": "Heading planned",
          "url": "/education/#lesson-0975",
          "legacy_grid_id": 974
        },
        {
          "number": 976,
          "title": "From Causal Order to Simplicial Geometry: A Bridge to Construct",
          "lane": "R",
          "id": "lesson-0976",
          "status": "Heading planned",
          "url": "/education/#lesson-0976",
          "legacy_grid_id": 975
        }
      ],
      "id": "unit-66",
      "url": "/education/#unit-66"
    },
    {
      "number": 67,
      "volume": "XVI",
      "title": "The Metatheory Observatory — Frameworks About Frameworks",
      "first": 977,
      "last": 992,
      "prerequisites": [
        17,
        22,
        23,
        24
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      "lessons": [
        {
          "number": 977,
          "title": "Metatheory: State the Language Used to Discuss a Theory",
          "lane": "M",
          "id": "lesson-0977",
          "status": "Heading planned",
          "url": "/education/#lesson-0977",
          "legacy_grid_id": 976
        },
        {
          "number": 978,
          "title": "Category Theory as a Language for Mathematical Practice",
          "lane": "M",
          "id": "lesson-0978",
          "status": "Heading planned",
          "url": "/education/#lesson-0978",
          "legacy_grid_id": 977
        },
        {
          "number": 979,
          "title": "Higher Categories and Levels of Coherence",
          "lane": "M",
          "id": "lesson-0979",
          "status": "Heading planned",
          "url": "/education/#lesson-0979",
          "legacy_grid_id": 978
        },
        {
          "number": 980,
          "title": "Infinity-Topoi",
          "lane": "M",
          "id": "lesson-0980",
          "status": "Heading planned",
          "url": "/education/#lesson-0980",
          "legacy_grid_id": 979
        },
        {
          "number": 981,
          "title": "Derived Algebraic Geometry Revisited",
          "lane": "M",
          "id": "lesson-0981",
          "status": "Heading planned",
          "url": "/education/#lesson-0981",
          "legacy_grid_id": 980
        },
        {
          "number": 982,
          "title": "Motivic Homotopy Theory",
          "lane": "M",
          "id": "lesson-0982",
          "status": "Heading planned",
          "url": "/education/#lesson-0982",
          "legacy_grid_id": 981
        },
        {
          "number": 983,
          "title": "The Langlands Programme",
          "lane": "M",
          "id": "lesson-0983",
          "status": "Heading planned",
          "url": "/education/#lesson-0983",
          "legacy_grid_id": 982
        },
        {
          "number": 984,
          "title": "Arithmetic Geometry and Physical Analogies",
          "lane": "M",
          "id": "lesson-0984",
          "status": "Heading planned",
          "url": "/education/#lesson-0984",
          "legacy_grid_id": 983
        },
        {
          "number": 985,
          "title": "p-Adic Physical Models",
          "lane": "M",
          "id": "lesson-0985",
          "status": "Heading planned",
          "url": "/education/#lesson-0985",
          "legacy_grid_id": 984
        },
        {
          "number": 986,
          "title": "Adelic Models and Their Extra Structure",
          "lane": "M",
          "id": "lesson-0986",
          "status": "Heading planned",
          "url": "/education/#lesson-0986",
          "legacy_grid_id": 985
        },
        {
          "number": 987,
          "title": "Number Theory in Quantum Field Theory",
          "lane": "M",
          "id": "lesson-0987",
          "status": "Heading planned",
          "url": "/education/#lesson-0987",
          "legacy_grid_id": 986
        },
        {
          "number": 988,
          "title": "Zeta Functions in Physical Calculations",
          "lane": "M",
          "id": "lesson-0988",
          "status": "Heading planned",
          "url": "/education/#lesson-0988",
          "legacy_grid_id": 987
        },
        {
          "number": 989,
          "title": "Modular Forms and Black-Hole Counting Models",
          "lane": "M",
          "id": "lesson-0989",
          "status": "Heading planned",
          "url": "/education/#lesson-0989",
          "legacy_grid_id": 988
        },
        {
          "number": 990,
          "title": "Moonshine and Unexpected Correspondences",
          "lane": "M",
          "id": "lesson-0990",
          "status": "Heading planned",
          "url": "/education/#lesson-0990",
          "legacy_grid_id": 989
        },
        {
          "number": 991,
          "title": "Vertex Operator Algebras",
          "lane": "M",
          "id": "lesson-0991",
          "status": "Heading planned",
          "url": "/education/#lesson-0991",
          "legacy_grid_id": 990
        },
        {
          "number": 992,
          "title": "Comparing Foundations Without Claiming a Final Foundation",
          "lane": "M",
          "id": "lesson-0992",
          "status": "Heading planned",
          "url": "/education/#lesson-0992",
          "legacy_grid_id": 991
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      "id": "unit-67",
      "url": "/education/#unit-67"
    },
    {
      "number": 68,
      "volume": "XVI",
      "title": "The Higher-Structure Atlas — Coherence and Generalization",
      "first": 993,
      "last": 1008,
      "prerequisites": [
        22,
        23,
        24,
        67
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        {
          "number": 993,
          "title": "Higher (∞, n)-Categories and Coherent Composition",
          "lane": "M",
          "id": "lesson-0993",
          "status": "Heading planned",
          "url": "/education/#lesson-0993",
          "legacy_grid_id": 992
        },
        {
          "number": 994,
          "title": "The Cobordism Hypothesis Revisited",
          "lane": "M",
          "id": "lesson-0994",
          "status": "Heading planned",
          "url": "/education/#lesson-0994",
          "legacy_grid_id": 993
        },
        {
          "number": 995,
          "title": "Factorization Homology",
          "lane": "M",
          "id": "lesson-0995",
          "status": "Heading planned",
          "url": "/education/#lesson-0995",
          "legacy_grid_id": 994
        },
        {
          "number": 996,
          "title": "Koszul Duality",
          "lane": "M",
          "id": "lesson-0996",
          "status": "Heading planned",
          "url": "/education/#lesson-0996",
          "legacy_grid_id": 995
        },
        {
          "number": 997,
          "title": "Deformation Quantization",
          "lane": "M",
          "id": "lesson-0997",
          "status": "Heading planned",
          "url": "/education/#lesson-0997",
          "legacy_grid_id": 996
        },
        {
          "number": 998,
          "title": "Formality Theorems and Their Domains",
          "lane": "M",
          "id": "lesson-0998",
          "status": "Heading planned",
          "url": "/education/#lesson-0998",
          "legacy_grid_id": 997
        },
        {
          "number": 999,
          "title": "Operadic Algebra",
          "lane": "M",
          "id": "lesson-0999",
          "status": "Heading planned",
          "url": "/education/#lesson-0999",
          "legacy_grid_id": 998
        },
        {
          "number": 1000,
          "title": "A-Infinity Structures",
          "lane": "M",
          "id": "lesson-1000",
          "status": "Heading planned",
          "url": "/education/#lesson-1000",
          "legacy_grid_id": 999
        },
        {
          "number": 1001,
          "title": "L-Infinity Structures",
          "lane": "M",
          "id": "lesson-1001",
          "status": "Heading planned",
          "url": "/education/#lesson-1001",
          "legacy_grid_id": 1000
        },
        {
          "number": 1002,
          "title": "The Batalin–Vilkovisky Formalism",
          "lane": "M",
          "id": "lesson-1002",
          "status": "Heading planned",
          "url": "/education/#lesson-1002",
          "legacy_grid_id": 1001
        },
        {
          "number": 1003,
          "title": "AKSZ-Type Constructions",
          "lane": "M",
          "id": "lesson-1003",
          "status": "Heading planned",
          "url": "/education/#lesson-1003",
          "legacy_grid_id": 1002
        },
        {
          "number": 1004,
          "title": "Derived Differential Geometry",
          "lane": "M",
          "id": "lesson-1004",
          "status": "Heading planned",
          "url": "/education/#lesson-1004",
          "legacy_grid_id": 1003
        },
        {
          "number": 1005,
          "title": "Synthetic Differential Geometry",
          "lane": "M",
          "id": "lesson-1005",
          "status": "Heading planned",
          "url": "/education/#lesson-1005",
          "legacy_grid_id": 1004
        },
        {
          "number": 1006,
          "title": "Sheaf Cohomology: A Powerful Language With a Scope",
          "lane": "M",
          "id": "lesson-1006",
          "status": "Heading planned",
          "url": "/education/#lesson-1006",
          "legacy_grid_id": 1005
        },
        {
          "number": 1007,
          "title": "Local-to-Global Obstructions Across Different Models",
          "lane": "M",
          "id": "lesson-1007",
          "status": "Heading planned",
          "url": "/education/#lesson-1007",
          "legacy_grid_id": 1006
        },
        {
          "number": 1008,
          "title": "When a Structural Analogy Becomes a Proved Correspondence",
          "lane": "M",
          "id": "lesson-1008",
          "status": "Heading planned",
          "url": "/education/#lesson-1008",
          "legacy_grid_id": 1007
        }
      ],
      "id": "unit-68",
      "url": "/education/#unit-68"
    },
    {
      "number": 69,
      "volume": "XVI",
      "title": "Apeiron — Context, Representation, and the Open Horizon",
      "first": 1009,
      "last": 1024,
      "prerequisites": [
        9,
        17,
        22,
        23,
        53,
        54,
        67,
        68
      ],
      "lessons": [
        {
          "number": 1009,
          "title": "The Apeiron Charter: Relations Before Preferred Coordinates",
          "lane": "R",
          "id": "lesson-1009",
          "status": "Heading planned",
          "url": "/education/#lesson-1009",
          "legacy_grid_id": 1008
        },
        {
          "number": 1010,
          "title": "A Context Is a Declared Menu of Questions",
          "lane": "R",
          "id": "lesson-1010",
          "status": "Heading planned",
          "url": "/education/#lesson-1010",
          "legacy_grid_id": 1009
        },
        {
          "number": 1011,
          "title": "Local Records and Compatible Overlaps",
          "lane": "R",
          "id": "lesson-1011",
          "status": "Heading planned",
          "url": "/education/#lesson-1011",
          "legacy_grid_id": 1010
        },
        {
          "number": 1012,
          "title": "When Local Agreement Admits No Global Assignment",
          "lane": "R",
          "id": "lesson-1012",
          "status": "Heading planned",
          "url": "/education/#lesson-1012",
          "legacy_grid_id": 1011
        },
        {
          "number": 1013,
          "title": "Bell-Type Scenarios as One Worked Family",
          "lane": "R",
          "id": "lesson-1013",
          "status": "Heading planned",
          "url": "/education/#lesson-1013",
          "legacy_grid_id": 1012
        },
        {
          "number": 1014,
          "title": "Hilbert Realizations: A Representation to Be Constructed",
          "lane": "R",
          "id": "lesson-1014",
          "status": "Heading planned",
          "url": "/education/#lesson-1014",
          "legacy_grid_id": 1013
        },
        {
          "number": 1015,
          "title": "Beyond Hilbert: Alternatives and Their Consistency Obligations",
          "lane": "R",
          "id": "lesson-1015",
          "status": "Heading planned",
          "url": "/education/#lesson-1015",
          "legacy_grid_id": 1014
        },
        {
          "number": 1016,
          "title": "Ambient-Free Descriptions and Their Metatheory",
          "lane": "R",
          "id": "lesson-1016",
          "status": "Heading planned",
          "url": "/education/#lesson-1016",
          "legacy_grid_id": 1015
        },
        {
          "number": 1017,
          "title": "Observer Models Without Making Observers Cosmic Foundations",
          "lane": "R",
          "id": "lesson-1017",
          "status": "Heading planned",
          "url": "/education/#lesson-1017",
          "legacy_grid_id": 1016
        },
        {
          "number": 1018,
          "title": "The Consciousness Bridge: Explicitly Unproved",
          "lane": "H",
          "id": "lesson-1018",
          "status": "Heading planned",
          "url": "/education/#lesson-1018",
          "legacy_grid_id": 1017
        },
        {
          "number": 1019,
          "title": "The Anomalon Architecture: Components and Evidence",
          "lane": "H",
          "id": "lesson-1019",
          "status": "Heading planned",
          "url": "/education/#lesson-1019",
          "legacy_grid_id": 1018
        },
        {
          "number": 1020,
          "title": "Comparing Frameworks Without Retrofitting Their Origins",
          "lane": "R",
          "id": "lesson-1020",
          "status": "Heading planned",
          "url": "/education/#lesson-1020",
          "legacy_grid_id": 1019
        },
        {
          "number": 1021,
          "title": "What Would Falsify an Apeiron Model?",
          "lane": "R",
          "id": "lesson-1021",
          "status": "Heading planned",
          "url": "/education/#lesson-1021",
          "legacy_grid_id": 1020
        },
        {
          "number": 1022,
          "title": "Reproducible Proofs, Tests, and Empirical Records",
          "lane": "R",
          "id": "lesson-1022",
          "status": "Heading planned",
          "url": "/education/#lesson-1022",
          "legacy_grid_id": 1021
        },
        {
          "number": 1023,
          "title": "Mapping Our Remaining Unknowns",
          "lane": "R",
          "id": "lesson-1023",
          "status": "Heading planned",
          "url": "/education/#lesson-1023",
          "legacy_grid_id": 1022
        },
        {
          "number": 1024,
          "title": "The Next Distinction: Designing an Open Research Question",
          "lane": "R",
          "id": "lesson-1024",
          "status": "Heading planned",
          "url": "/education/#lesson-1024",
          "legacy_grid_id": 1023
        }
      ],
      "id": "unit-69",
      "url": "/education/#unit-69"
    }
  ],
  "research_programmes": [
    {
      "name": "The Context Loom",
      "subcategory": "Apeironic contextuality",
      "question": "Which local record families admit a compatible global description?",
      "education_units": [
        9,
        22,
        23,
        69
      ],
      "url": "/research/#the-context-loom"
    },
    {
      "name": "The Hilbert Window",
      "subcategory": "Representations and realizations",
      "question": "Which explicitly defined relational models admit a Hilbert-space realization, and which do not?",
      "education_units": [
        5,
        9,
        69
      ],
      "url": "/research/#the-hilbert-window"
    },
    {
      "name": "The Boundary Ledger",
      "subcategory": "Obstructions and consistency",
      "question": "Which claimed obstruction is proved, computed on a finite case, or still conjectured?",
      "education_units": [
        17,
        23,
        68
      ],
      "url": "/research/#the-boundary-ledger"
    },
    {
      "name": "Hyperuranius",
      "subcategory": "Descriptions without a preferred ambient arena",
      "question": "What relational data and metatheory replace an assumed embedding space?",
      "education_units": [
        22,
        24,
        67,
        69
      ],
      "url": "/research/#hyperuranius"
    },
    {
      "name": "Omnium",
      "subcategory": "An interoperable library of models",
      "question": "How can models exchange data while preserving their different assumptions?",
      "education_units": [
        22,
        50,
        67
      ],
      "url": "/research/#omnium"
    },
    {
      "name": "Plenitudo",
      "subcategory": "Synthesis with traceable bridges",
      "question": "Which cross-domain correspondences have actual maps and supporting evidence?",
      "education_units": [
        25,
        49,
        66,
        68
      ],
      "url": "/research/#plenitudo"
    },
    {
      "name": "To Pan",
      "subcategory": "Whole-and-part investigations",
      "question": "When can local descriptions compose, and what prevents that composition?",
      "education_units": [
        22,
        23,
        46,
        69
      ],
      "url": "/research/#to-pan"
    },
    {
      "name": "The Observer Relay",
      "subcategory": "Bounded observers and records",
      "question": "What changes when an observer has a declared memory, access policy, and action budget?",
      "education_units": [
        45,
        53,
        55
      ],
      "url": "/research/#the-observer-relay"
    },
    {
      "name": "The Meaning Bridge",
      "subcategory": "Semantics and empirical correspondence",
      "question": "How are formal symbols connected to a specified measurement procedure?",
      "education_units": [
        17,
        35,
        56
      ],
      "url": "/research/#the-meaning-bridge"
    },
    {
      "name": "The Experience Question",
      "subcategory": "Consciousness models",
      "question": "Which observations could discriminate a proposed account of experience from its rivals?",
      "education_units": [
        45,
        54,
        57
      ],
      "url": "/research/#the-experience-question"
    },
    {
      "name": "The Anomalon Workshop",
      "subcategory": "Architecture and verification",
      "question": "Which components run, which claims have proofs, and where do integrations still fail?",
      "education_units": [
        19,
        53,
        65
      ],
      "url": "/research/#the-anomalon-workshop"
    },
    {
      "name": "The Open Horizon",
      "subcategory": "Unclassified structures and future questions",
      "question": "How can the atlas be extended without pretending to enumerate every possible thing?",
      "education_units": [
        61,
        67,
        68,
        69
      ],
      "url": "/research/#the-open-horizon"
    }
  ]
}