Parallel universe

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Parallel universe may refer to:

Science (physics and cosmology)[edit]

A parallel universe, also known as an alternate universe or alternative universe, or, alternate or alternative reality, is a hypothetical self-contained plane of existence, co-existing with one's own. The sum of all potential parallel universes that constitute reality is often called a “multiverse".

Philosophy[edit]

  • Possible world, a construct in metaphysics to bring rigor to talk of logical possibility
  • Modal realism, an account of possible worlds according to which they are all just as real as the actual world
  • Extended modal realism, the view that all worlds, possible as well as impossible, are as real as the actual world

Arts and media[edit]

Literature, film, and television[edit]

Music[edit]

See also[edit]