Parallel universe

  • Thread starter ranger
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ranger
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What are these exactly? Do they exist or are they just speculations?
 

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  • #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.
 
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ranger said:
What are these exactly? Do they exist or are they just speculations?


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

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