Science a GoGo's Home Page Forums General Discussion General Science Discussion Forum What's the time in the multiverse?

I didn’t really intend starting a discussion about the nature of time, fascinating as that is. What I had in mind was the fact that multiverse supporters often claim that past directed time travel can be achieved if there are other universes into which chrononauts could move. Also David Deutsch (The Fabric of Reality) argues in favour of the multiverse using the double slit experiment. His argument seems to require very close synchronisation between trillions of universes. It is the possibility/nature of such synchronisation that I find myself wondering about.

Again it isn't really an argument it is an extension of the mathematics behind QM which requires that lock. If you were correct and they aren't locked then QM is falsified. Under the QM mathematics they must be locked so now all you do is extend your thinking and come up with something that covers all the observations of QM.

I don't mind you asking or suggesting what you have my problem is you can't just keep QM and patch it to put it in perspective it would be like trying to patch GR/SR so the speed of light isn't a fixed constant ... you couldn't do it because that is the core of relativity you would need a whole new theory.

That's what I am being hard on you about you need to understand the full implication of your suggestion and it would mean QM is falsified and wrong so you have a big problem to fix. You can't just say I accept all the other bits of QM but no I don't accept the locked time bit, you can't do that as QM doesn't work without the states being locked.

It would be the same as you trying to tell me that entanglement doesn't exist. If it doesn't exist fine but QM is falsified because it predicts it must exist. You can't have QM without entanglement either.

That is the reason the extrapolation is fine because if this is wrong the whole of QM is dead anyhow and that is the basis of my objection to your idea.