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Q&A How could I make a portal to parallel universes as scientifically realistic as possible?

[Edit: I'm not looking for 100% realism. I'm looking for an explanation as realistic as possible, possible with just few exceptions to physics.] [Edit 2: In my imagination these worlds are differe...

7 answers  ·  posted 8y ago by Darcera‭  ·  last activity 6y ago by Darcera‭

Question reality-check physics earth energy