Joe Rogan | Sir Roger Penrose's Thoughts on the Multiverse

What are your thoughts on multiverses? Well, you see this is different because this is the what sequential yeah, so I don't call it a multiverse They each influence the next one and so they're not independent worlds, right? But in the the possibility of independent, yeah Well, you see there are two reasons for believing multiverses One of them is the quantum reason that maybe we have the Schrodinger dead cat and the live cat They're in different worlds and they're separate universes. I don't believe that argument I don't think that's the right way to look at quantum mechanics But many people do and that suggests that you might have these multiple universes in some sense What's unattractive about that to you? It doesn't explain what we see. So you want a theory which explains the world we see and the world we see You get collapse the state does and to explain that well, it's only because we've drifted off into some world and Another version of ourselves is drift into another one and some see one and the other see the other and they're all in superposition It doesn't explain Why you see one world in and she has this kind of coherence. I Mean lots of people try and there are many attempts at this sort of thing It's quite a widely held view and if you believe quantum mechanics that the collapse is not real and it doesn't happen All the alternatives the dead cats and the live cat co-exists in different worlds. That's the interpretation That's a view. I don't think that I want I want an explanation for the world we we live in and you don't see cast Different worlds with cats and well, it's a long story, right? I mean other it's clearly it's a view you can hold to and if you don't want a monkey with quantum mechanics It's where you led So that's that's right. That's the alternative either You don't make a single try to change quantum mechanics at all and then you are led to this multi-world Many many world you picture. Yeah, I think it even doesn't make that much sense So you've got to be careful about it that whether they are really like different distinct worlds I don't think it really my view is it doesn't really work. But let me not try and attack that I think I Have a different view which is that the theory is not quite quite right right and that there is something which makes the the collapse into a physical process and The There's only one world now the other many world's view which is Comes from a different reason and that is that they see there seem to be various accidents In Well, maybe one of them being that the neutron is just slightly more massive than the proton That's one there are lots of other accidents. We see that if they were a little different Then life as we know it couldn't happen. Hmm. And so how do you explain this? Well, some people say well all these universes with different values of these Constants all coexist. It's just we only see the one that we're in because the numbers come out right for us So that's what's called an anthropic argument. Hmm Okay, I can see the argument. I don't like it much It's sort of I think we need a better explanation for why the numbers are what we see and so on But that's that that one makes more sense to me than the other one So so I think one can maybe has to take that seriously, but it's certainly not the view I'm presenting here with this picture it's For someone like me, it's so interesting to know that there's still a considerable amount of speculation. Yes. Oh, yeah well, it's it's there's a lot of speculation but a lot of it is Pretty off the wall and a lot of people think mine are off the wall. You see Okay Okay, you know did think decent things in the past but you shouldn't trust this abuse now So I guess that's what people think I don't know but you see if it's just me I could understand that right but I've got these post and I've got an Armenian colleague who's done things on this too and It can't be that we're all off the rails. I think No, there's something out there and now with the Hawking points. There's something people can really go out and look for And if they don't see you and there's something funny going on somewhere if they do see them There's something else going funny on which which they'll have to think of another explanation Unless it's my explanation. They'll have to think of a Different view from the current inflation view which is in real trouble with these observations as far as I can see