2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35913An algebraic scheme is suggested in which discretized spacetime turns out to be a quantum observable. As an example, a toy model producing spacetimes of four points with different topologies is presented. The possibility of incorporating this scheme into the framework of non-commutative differential geometry is discussed.latex 2.09, no frillsGeneral Relativity and Quantum CosmologyQuantum Physicstext