Declarations

and competing interests. No specific funding or competing interests are declared.

. No new human or animal experimentation is reported.

and source availability. No new biological dataset is used. The dimensionless example is analytic. The manuscript is one self-contained pdflatex source. Internal Cheung references identify supplied excerpt records; no unavailable full manuscript is represented as appended, independently inspected, or reproduced here.

provenance. The revision includes a static mathematical and source audit. It does not report an executed {} build, numerical reproduction, laboratory implementation, or machine-checked proof. Bibliographic information for public methodological sources was checked against primary-source records where accessible. Attempts to access the four immediate companion pages did not supply their full texts.