Mkwdr t1_j4dhw0o wrote on January 14, 2023 at 11:10 PM

Reply to comment by [deleted] in The multiverse by Manureofhistory

I have read similar ideas and they are interesting ( if well above my brain grade) but I think I am right in saying that in quantum physics ‘observer’ is really a term for kinds of interaction , it doesn’t actual have to be a consciousness? There is a certain elegance to the idea that there is some kind of natural selection process for universes that means while there may be infinite potential ones only some can be real?

Argonated t1_j4elq4j wrote on January 15, 2023 at 3:58 AM

All can be real and are real if MWI is correct.

Mkwdr t1_j4fbxbv wrote on January 15, 2023 at 8:29 AM

All possible universes if I remember correctly even in MWI? I claim no expertise but there are different kinds of multiverse theories. The cosmological inflationary and the MWI and branes (?) though some would like to link them? I’m not sure to what extent MWI is meant to be multiple versions of ‘this’ universe - the cat being alive in one and dead in another but the laws of physics still being the same? Or does it also produce universes with varied basic conditions? I don’t know - but i think the cosmological inflationary multiverse does include the possibility of universes with very different conditions and some parameters are unsustainable - the bubble pops , deflates etc.

[deleted] t1_j4fggw2 wrote on January 15, 2023 at 9:29 AM

[deleted]

Mkwdr t1_j4fi92u wrote on January 15, 2023 at 9:53 AM

It can indeed.

I keep trying to find something on any limits to the worlds of the many world interpretation but it’s difficult.

>This implies that all possible outcomes of quantum measurements are physically realized in some "world" or universe. (Wiki)

I’m curious as to under these circumstances what determines whether something is possible or not. And are there potential universes that don’t exist because they are not the possible outcomes of any quantum ‘measurement’? Does that make sense?

I did find this .. though obviously I have no idea as to the validity ..

> In the Many World’s interpretation of quantum mechanics the universe we live in seems to split into separate universes. You’re in a not-special one of them and evidently they’ve got normal space. Same π.

https://www.askamathematician.com/2020/12/q-is-%cf%80-the-same-in-every-universe/

Shiningc t1_j4g10sl wrote on January 15, 2023 at 1:39 PM

The laws of physics are the same in the multiverse.