Everett branch

English Etymology Named after American physicist Hugh Everett III, who proposed the many-worlds interpretation of quantum mechanics in 1957. Noun en quantum mechanics A particular sequence of wavefunction collapses, which, according to the many-worlds interpretation of quantum mechanics, corresponds to a particular universe. en Justin Smith Possible worlds and Everett's worlds sci.physics https://groups.google.com/g/sci.physics/c/FkhCYRePs9g/m/CCzH0FY6jn0J 6 August 1993 This discussion is fascinating because I used to be acquainted with some philosophers who were trying to use Everett's theory as a way to give a `rigorous' meaning to `possible'. In other words, a world is possible if there exists a causal chain of Everett branches connecting it with our world. en eponyms