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Questions tagged [multiverse]

A hypothetical group of multiple universes, each of which would comprise everything that is experimentally accessible by a connected community of observers. DO NOT USE the 'multiverse' tag for the many-worlds interpretation, use the 'quantum-interpretations' tag instead.

A hypothetical group of multiple universes, each of which would comprise everything that is experimentally accessible by a connected community of observers. DO NOT USE the tag for the many-worlds interpretation, use the tag instead.

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How do we prove the existence of a multiverse?

How do we prove that a multiverse exists? Scientists are talking about our universe not being the only universe, but even if that is true, how can we prove the existence of multiverse? We are being 'confined' in this universe and there is no way we…
James Kujareevanich
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Is a type I parallel Universe possible?

A type I parallel Universe (according to Max Tegmark) is a universe that is infinite and looks everywhere more or less like our universe does (it's homogeneous). Tegmark claims that within this infinity there are regions say with a diameter of 100…
Deschele Schilder
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Criticism of physics in _The Beginning of Infinity_?

Have any criticisms been written of the physics presented in David Deutsch's book The Beginning of Infinity? Does he make any mistakes? If so, please refer me to them.
curi
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Multiverse fictional constraints

In a multiverse the only thing that does not exist is fiction - true / false ? Specifically is anything fictional ever written (Star Wars, Harry Potter, Last and First Men etc etc) actually non fiction in an infinite multiple universe ? If false…
user106271
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Quantum choices and Universe splitting

Multiverse theory says that when a choice is made between two quantum states, the Universe splits. What happens if there are 3 or more choices that need to be made? Will that state make the Universe split into 3 new Universes?
Mars Sojourner
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Why can a "wave of differentiation" be thought of as a "sphere of differentiation"?

Below is a paragraph from chapter 11 of David Deutsch's book The Beginning of Infinity (emphasis mine). The context he is referring to is the quantum "multiverse" - his conjecture about how the quantum world operates. The region in which the…
Paul Razvan Berg
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Is there any theory about extra-Universal place?

I mean you can probably imagine cells and extracellular space between them. In biology some things can go through the cell membrane in and out. What if universe/s are "similar" and some form of "energy" can leave the Universe and go to…
Derfder
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Does the lack of absurdities in our universe call into question the validity of multi verse theories?

Does the lack of absurdities in our universe call into question the validity of multi verse theories? If the theories about multi verse are to be true and we have explained the immensely improbable events like the low entropy state and the fine…
Neil Meyer
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What are the laws of physics of the Multiverse ? What is the multiversal constant?

What are the laws of physics outside our Universe ? Can a Multiverse constant exist ? And what is the Multiverse constant if it exists ?
alin
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If there is an infinite number of universes doesn't that mean there is a universe where there is not an infinite number of parallel universes?

Hi i'm not clever enough to think outside of my finite existence. Can someone explain the bounds of my logical thinking that infinity is a paradox like the question: "are you lying?". Is my understanding of multiverse even correct?
D W
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