2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/207068By simple arguments, we have shown that Karolyhazy's model overestimates the quantum uncertainty of the space-time geometry and leads to absurd physical consequences. The given model can thus not account for gradual violation of quantum coherence and can not predict tiny experimental effects either.5 pages, Plain-TexGeneral Relativity and Quantum Cosmologytext