Parallel universe

Look up alternate universe, alternate universes, parallel universe, parallel universes, or parallel world in Wiktionary, the free dictionary.

Parallel universe may refer to:

Science (physics and cosmology)

• Multiverse, the set of multiple universes
• The many-worlds interpretation of quantum physics.

Philosophy

• 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
• Probable worlds, a spiritualistic account of probable worlds as alternatives to the focus world

Arts and media

• Parallel universe (fiction), a self-contained separate world, universe or reality coexisting with the real world, which is used as a recurring plot point or setting used in fantasy and science fiction
• Alternate universe (fan fiction), fiction by fan authors that deliberately alters facts of the canonical universe written about
• List of fiction employing parallel universes

See also

• Metaverse, a collective virtual shared space
• Multiverse (disambiguation)
• Parallel World (disambiguation)