If someone has a baby while traveling does their baby need a passport to come back to u.s.?

You're assuming that a multiverse exists, and there's absolutely zero evidence to suggest that it does. If you can dismiss the evidence for God, you're hypocritical to believe in a multiverse, no offense intended. But time travel isn't possible.

It will never be possible. How do I know? Simple!

We don't have a history that anyone has visited via time travel. If it had been done, we would have known about it. I understand the theory, but where is the evidence?

Multiverse theory has one chief purpose: to eliminate the need for a first cause to the universe. The problem is that is simply pushes back that question. What caused the multiverse?

It still requires an unmoved mover. There's simply no observable evidence for a multiverse, and no reason to think that one exists, unless you want to get a cosmology paper published in an astronomy journal. I love these back and forth exchanges.

I'm glad to see you don't take offense, but I want to clarify. On one hand, we have a claim that God exists. We have arguments for God and the necessity of a first cause for the universe, an argument from morality, an argument from the fine tuning of the universe, etc., yet many atheists want to see NATURALISTIC evidence of what is by definition BEYOND the NATURAL.

They say there's no evidence for God. On the other hand, we have a claim that a multiverse exists. We have theoretical arguments, but no necessary cause for a multiverse, no need for a multiverse to exist, and no observable evidence of its existence, yet many atheists accept that there is no NATURALISTIC evidence of a multiverse that is by definition part of the NATURAL world.

They accept the existence of a multiverse. See my consternation at this? The last word is yours ...

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.