The Many-Worlds View (Hugh Everett III, 1950s): This theory sought to answer the question of why we see only one outcome of the many allowed by the quantum wave function. I.e., whenever a measurement forces a particle to make a choice, for instance, between going left or right in a two-slit experiment, the entire universe splits into two separate universes with particles going into left and right worlds. The Many-Histories View (Murray Gell-Mann, 1986): Many different histories are “potentialities” rather than physical actualities. A given system can have different possible histories, each with its own probability. This theory eliminates the possibility of an infinite number of parallel universes which are all equally real. The Many-Minds View (David Z. Albert, 1992): Each observer of the phenomena is associated with an infinite set of minds, which experience different possible outcomes of the quantum experiment – a possibility allowed by Schrodinger’s equations. Image: Shattered glass TUrbanShatteredGlassIMG3246.jpg

the many-worlds view