2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/164685We discuss some lessons from quantum hydrodynamics to quantum gravity.20 pages, 1 figure, rapporteur article for Proceedings of MG11, session `Analog Models of and for General Relativity', references addedGeneral Relativity and Quantum CosmologySoft Condensed MatterHigh Energy Physics - Phenomenologytext