Remark: A formal encoding is not acquisition

Given an already known form $Q$, one can prepare the qubit state

and insert it at the root of a valid tripartite comb. Measuring it encodes the energy in a finite record law.

This proves formal representability of an already supplied scalar as a probability. It does not construct a physical transducer from an unknown elliptic medium to that law. Inverting such a preparation would merely recover information put into the preparation.