2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35873The question of whether unobserved short-wavelength modes of the gravitational field can induce decoherence in the long-wavelength modes (``the decoherence of spacetime'') is addressed using a scalar field toy model with some features of perturbative general relativity. This is an abridged version of the author's paper gr-qc/9612028.3 pages, no figures. Submitted to the Proceedings of the 18th Texas Meeting on Relativistic Astrophysics, Dec 15-20, 1996General Relativity and Quantum Cosmologytext