2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/90126A scenario is outlined for quantum measurement, assuming that self-sustaining classicality is the consequence of an attractive gravitational self-interaction acting on massive bodies, and randomness arises already in the classical domain. A simple solvable model is used to demonstrate that small quantum systems influence big ones in a mean-field way, offering a natural route to Born's probability rule.revtex4, 4 pages, no figureQuantum Physicstext