2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/34792Recently A. Rathke has argued that the KK$ψ$ model explanation of the discrepant measurements of Newton's constant is already ruled out due to Eötvös experiments by several orders of magnitude. The structure of the action of the KK$ψ$ model is even qualified as inconsistent in the sense that it would yield a negative energy of the electromagnetic field. Here, I refute both claims and emphasize the possibility still open to reconcile the experimental bounds on the test of the weak equivalence principle (WEP) with scalar-tensor theories in general by some compensating mechanism.Latex2e, 10 pages, no figureGeneral Relativity and Quantum Cosmologytext