2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/34271It is shown that the Newtonian limit of a stable realization of HD gravity leads to a sharp transition, around 10^{11} proton masses, from the wavelike properties of microscopic particles to the classical behaviour of macroscopic bodies. Besides, due to nonunitarity, a pure state is expected to evolve into a microcanonical ensamble leading to thermal equilibrium even for truly closed systems.6 pages, to appear in Proceedings of the First International Conference on Quantum Limits to the Second Law, July 29-31, 2002, University of San Diego, San Diego, CAGeneral Relativity and Quantum Cosmologytext