Multiverse and Fictional Ideas

[R0dr1go]

TL;DR Summary

Do fictional places that the human mind imagined exist in other universes? and if so, did that universe only exist after we came up with the idea or did we just happen to think about an already existing universe?

I'm a 16 year old who has wondered this question for a while. If the multiverse theory is correct, and I understand correctly, there would be infinite universes in which each universe would be different from another in some form. If this is the case, would that mean that places and worlds that we have created in our minds (places in movies, books, etc.) exist in other universes? And, if so, do the universes where these fictional places exist become real when we conceive it in our minds (and if that is correct, what power does consciousness hold in reality?), or, has that universe existed before, and we just so happen to think about it? Thanks.

 

[Orodruin]

TL;DR Summary: Do fictional places that the human mind imagined exist in other universes? and if so, did that universe only exist after we came up with the idea or did we just happen to think about an already existing universe?

would that mean that places and worlds that we have created in our minds (places in movies, books, etc.) exist in other universes?

No.

 

[PeterDonis]

the multiverse theory

What multiverse theory? Please give a specific reference.

 

[Ibix]

I'm a 16 year old who has wondered this question for a while. If the multiverse theory is correct, and I understand correctly, there would be infinite universes in which each universe would be different from another in some form.

There isn't just one multiverse theory. And serious scientific ones limit "other worlds" to ones that form by some understood process. For example, the many worlds interpretation of quantum mechanics means that the "other worlds" have the same physical laws as this one, just different outcomes of measurements - i.e. different history. This is unlikely to manifest as "mirror universes" like in Star Trek because a sequence of events that makes everyone evil but otherwise unchanged is not really plausible.

So no, your imagination does not create alternate universes. You can easily imagine universes that don't even obey a systematic set of physical laws (indeed that covers almost all fiction), and that is clearly outside the realm of any physics.

 

[kimbyd]

TL;DR Summary: Do fictional places that the human mind imagined exist in other universes? and if so, did that universe only exist after we came up with the idea or did we just happen to think about an already existing universe?

I'm a 16 year old who has wondered this question for a while. If the multiverse theory is correct, and I understand correctly, there would be infinite universes in which each universe would be different from another in some form. If this is the case, would that mean that places and worlds that we have created in our minds (places in movies, books, etc.) exist in other universes? And, if so, do the universes where these fictional places exist become real when we conceive it in our minds (and if that is correct, what power does consciousness hold in reality?), or, has that universe existed before, and we just so happen to think about it? Thanks.

Fictional universes generally violate the laws of physics in one way or another. Often in very mundane ways. Mythbusters has a bunch of episodes where they debunk various Hollywood tropes and shows that the real world doesn't work that way, for instance.

A simple example is gunfire. Gunfire is often shown to have a large "kick" to it, knocking people back. Turns out that in reality, the mass of the bullet is so small that it just doesn't impart much momentum to the target. Little stuff like that makes most fictional worlds impossible, even when the authors try really really hard to get everything right.

 

[KobiashiBooBoo]

If our universe is truly infinite, then within the physical laws, then there could be entire areas that are exactly the same as ours but with one molecule of difference. "Could" be....