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Parallel universe

  1. Sep 13, 2005 #1

    ranger

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    Gold Member

    What are these exactly? Do they exist or are they just speculations?
     
  2. jcsd
  3. Sep 14, 2005 #2

    hellfire

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    You may be interested in the definitions and the classification of multiverses by Max Tegmark:

    http://space.mit.edu/home/tegmark/multiverse.html

    It is speculation, but some ideas are grounded on more or less established theories and models.
     
    Last edited: Sep 14, 2005
  4. Sep 20, 2005 #3

    So far, speculation.. As is the so-called String Theory...
     
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