2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/134679Starting with basic axioms of quantum theory I revisit "Relative State Interpretation'' set out 50 years ago by Hugh Everett.Quantum PhysicsRelative States and the Environment: Einselection, Envariance, Quantum Darwinism, and the Existential Interpretationtext