did each universe in the multiverse have its own big bang?

Answer 1

Good question - but totally without an answer, I'm afraid.

For a start, the idea of a multiverse is entirely theoretical at the moment. But any universe other that our own is likely to have an entirely different set of physical laws - so different probably that, even if someone were able to explain them to us, they would be so far away from the realms of our experience, we wouldn't know what they were on about.

Answer 2

Parallel universes are mathematical artifacts in certain theories in physics, mainly quantum mechanics and models for quantum gravity. They are deemed unobservable by the very theories which produce them. Therefor, they are even less scientific than negative mass in Newtonian mechanics.

You can put negative mass it into every equation of mechanics you like and it will produce meaningful and experimentally testable effects. These effects have never been observed, therefor we can say that negative mass does not seem to exist.

In the corresponding case of parallel universes the theories say that they can't be observed, i.e. neither verified not falsified.

It's a typical case of what Wolgang Pauli jokingly called a "It's not even wrong!".

Answer 3

well, the "other" universes could possibly have different laws of physics, especially if they blend more into other dimensions than our universe naturally does.

If this is true, then those universe might not have, or might have different types of big bangs


like a slow fart instead

Answer 4

Most definitely yes if there are other universes. but why arn't they all the same universe with spaces like stars are to one another

Answer 5

that is IF there are multiple universes. theres really no evidence at all for string theory or m-theory, so theres no evidence for multiple universes.