{
  "what": "Thermodynamic / kinetic-proofreading curve of the triage (additive measurement)",
  "lens": "Hopfield-Ninio kinetic proofreading; Landauer bound; Thermodynamic Uncertainty Relation",
  "corpus_n": 800,
  "H_route_bits": 0.4689,
  "proofreading_curve": [
    {
      "step": 1,
      "estimator": "magic/#T (+Clifford pre-check)",
      "step_cost_s": 0.001,
      "cumulative_cost_s": 0.001,
      "cumulative_bits": 0.1072,
      "marginal_bits": 0.1072,
      "marginal_bits_per_second": 107.2105,
      "frac_of_H_route": 0.2286
    },
    {
      "step": 2,
      "estimator": "MPS bond (quimb)",
      "step_cost_s": 0.9,
      "cumulative_cost_s": 0.901,
      "cumulative_bits": 0.239,
      "marginal_bits": 0.1318,
      "marginal_bits_per_second": 0.1464,
      "frac_of_H_route": 0.5097
    },
    {
      "step": 3,
      "estimator": "treewidth (cotengra greedy)",
      "step_cost_s": 1.5,
      "cumulative_cost_s": 2.401,
      "cumulative_bits": 0.305,
      "marginal_bits": 0.0661,
      "marginal_bits_per_second": 0.044,
      "frac_of_H_route": 0.6506
    }
  ],
  "diminishing_efficiency": true,
  "efficiency_cliff_after_pre_check_x": 732.3,
  "efficiency_floor_bits_per_s": 0.01,
  "optimal_stop_step": 3,
  "reading": {
    "kinetic_proofreading": "each estimator is a proofreading step buying route-information with compute",
    "early_exit": "cheap steps carry most bits/second -> the Unified Core early-exit ordering is the thermodynamically efficient order, now grounded empirically",
    "medium_is_optimal_abstention": "when the full chain still leaves residual route-uncertainty, paying more dissipation is wasted -> MEDIUM is the optimal stop"
  },
  "caveats": [
    "Information is measured exactly (bits, Miller-Madow). Cost is representative per-estimator wall-clock on a dev M4 (threshold_calibration.json / scale_ceiling.json), not per-circuit timed.",
    "Landauer/TUR are the conceptual lens; we quantify bits and compute-cost, not Joules.",
    "Single-estimator-only route classes exist on the 800-row stratified set."
  ]
}