{
  "user_direction": [
    "Polish P1 into P2 using observed weaknesses.",
    "Use new premium materials suitable for each function.",
    "Avoid a Tesla-like or square block body; shape the vehicle around through-flow and its turbine.",
    "Charging and powered airflow both exist, selected by charging, speeding or braking mode.",
    "Investigate grip at the base, not only wheel braking.",
    "Electromagnetically driven hydraulics are separate from wheel brake pressure.",
    "Wheel modules turn outward into fan orientation to press the vehicle downward rather than lift it."
  ],
  "implemented_design": [
    "Rounded canopy and tapered body with broad paired elliptical nose intakes.",
    "Paired turbine bays and internal bores around a protected central reserve.",
    "Neutral rear sections are straight; actual exit flow remains a solver output.",
    "Explicit charging and powered-force numerical sensitivity modes.",
    "Wheel-fan deployment geometry concept and inverse power requirement screen.",
    "Independent electromagnetic/electro-hydraulic deployment interface and work/pressure requirement screen.",
    "Replaceable base-pad material test interface without invented grip values.",
    "New traceable aluminium, carbon/epoxy, copper, PEEK and calibrated hardware specification."
  ],
  "evidence_boundaries": {
    "body_through_flow": "3-D CFD model, unvalidated numerical screen",
    "charging_rotor": "Ideal actuator-disk coefficients, not measured blade/generator performance",
    "powered_fan": "Specified force input with computed flow/work, not a qualified motor/propeller",
    "wheel_fans": "Deployment concept and analytical resource requirement; not solved rotating blades or a road transition",
    "base_grip": "Materials/coupon protocol and load algebra; no measured friction map",
    "hydraulics": "Independent actuator architecture; linkage and hardware not qualified",
    "physical_build": "Unbuilt; no purchases or bench measurements",
    "thermal_core_P21": "Reduced-order transient dry-air model, analytical regeneration reference and N2 property-path budget; no physical or true cryogenic test."
  },
  "P21_user_direction": "Keep and fine-tune the original plan; investigate cryogenic cooling, pressure-deficit/refill flow and usable energy through physics and a theoretical prototype."
}