Re:Extraterrestrial Civilizations: Problems of Interstellar ...
by simonh on Thursday December 23, 2021 @05:44AM
(#29660566)
>it's about as scientific an idea as string theory is...
That's not necessarily a ringing endorsement ;)
At least string theory has lead to some very powerful and productive mathematical techniques, if little in the way of actual physics.
If we can invoke other universes, then we're kissing Occam's razor goodbye and we're in magical fairy land territory.
It certainly isn't. You can't simulate three atoms using two atoms. There's no reason another universe has to abide by the same rules as ours, though. It's not something anybody should actually worry about but it's about as scientific an idea as string theory is.