openphysical
Quantum-to-classical limit lacks the spatial coupling needed for diffusion
Pre-Physical Selection & Emergent Reality — Ch. 29 (Quantum Completion), G01
Original criticism
The proposed quantum Hamiltonian Ĥ_I is asserted to reduce to the classical reaction–diffusion equation in the appropriate limit, but the Hamiltonian as given has no spatial coupling term — the physical mechanism that would actually produce diffusive behavior in the classical limit is simply absent from the equation.
Response & evidence
Not corrected in v2 (Category B, a genuine physics gap rather than a checkable objective error) — logged as an open item; the classical field equation itself (Ch. 7) is unaffected and remains independently verified.