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[[File:Bvfgdtre.jpg|thumbnail|200px|left|The [[Atheism|atheist]] [[Stephen Hawking]] supports the [[multiverse hypothesis]] despite the fact that the universe exhibits a significant amount of fine-tuning.<ref> Universe or Multiverse. p. 19. ISBN 9780521848411. "Some physicists would prefer to believe that string theory, or M-theory, will answer these questions and uniquely predict the features of the Universe. Others adopt the view that the initial state of the Universe is prescribed by an outside agency, code-named God, or that there are many universes, with ours being picked out by the anthropic principle. Hawking argues that string theory is unlikely to predict the distinctive features of the Universe. But neither is he is an advocate of God. He therefore opts for the last approach, favouring the type of multiverse which arises naturally within the context of his own work in quantum cosmology."</ref>  See also: [[Anthropic principle]] ]]

[[File:Bvfgdtre.jpg|thumbnail|200px|right|The [[Atheism|atheist]] [[Stephen Hawking]] supports the [[multiverse hypothesis]] despite the fact that the universe exhibits a significant amount of fine-tuning.<ref> Universe or Multiverse. p. 19. ISBN 9780521848411. "Some physicists would prefer to believe that string theory, or M-theory, will answer these questions and uniquely predict the features of the Universe. Others adopt the view that the initial state of the Universe is prescribed by an outside agency, code-named God, or that there are many universes, with ours being picked out by the anthropic principle. Hawking argues that string theory is unlikely to predict the distinctive features of the Universe. But neither is he is an advocate of God. He therefore opts for the last approach, favouring the type of multiverse which arises naturally within the context of his own work in quantum cosmology."</ref>  See also: [[Anthropic principle]] ]]

The '''multiverse hypothesis''' postulates that multiple universes exist, and it is a consequence of one of the interpretations of [[quantum mechanics]]. Its origins lie in a 1957 thesis by [[Hugh Everett]], who offered a 'many worlds' interpretation (MWI) of some of the phenomena observed in quantum mechanical situations, such as the [[double-slit experiment]]. The multiverse hypothesis attempts to avoid the significant body of evidence supporting the fine-tuning of the universe (see: [[Anthropic principle]]).  

The '''multiverse hypothesis''' postulates that multiple universes exist, and it is a consequence of one of the interpretations of [[quantum mechanics]]. Its origins lie in a 1957 thesis by [[Hugh Everett]], who offered a 'many worlds' interpretation (MWI) of some of the phenomena observed in quantum mechanical situations, such as the [[double-slit experiment]]. The multiverse hypothesis attempts to avoid the significant body of evidence supporting the fine-tuning of the universe (see: [[Anthropic principle]]).