2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92037Information theory is a statistical theory concerned with the relative state of detectors and physical systems. As a consequence, the classical framework of Shannon needs to be extended to deal with quantum detectors, possibly moving at relativistic speeds, conceivably within curved space-time. Considerable progress toward such a theory has been achieved in the last ten years, while much is still not understood. This review recapitulates some milestones along this road, and speculates about future ones.Review. 28 pages, 3 figures, requires iopart.clsQuantum PhysicsGeneral Relativity and Quantum Cosmologytext