A response-matching programme, not a derived source law

The benchmark supplies an explicit effective interaction. It does not explain why a black hole should possess this qubit or coupling.

A future physically motivated source model could be constrained by absorption and emission response functions. Quantum-horizon effective theory provides one framework in a stated long-wavelength, short-relative-to-lifetime regime HorizonEFT. It is not a derivation of the present unknown-input source channel.

Required additional data include:

1. a source spectrum and its Hamiltonian;

2. transition matrix elements and state-dependent correlation functions;

3. absorption and emission matching in one stated regime;

4. higher source correlations relevant to coherent inputs;

5. a controlled remainder and the relation to exterior field observables;

6. energy exchange and a dynamical control model.