Parallel universes/Many worlds theory : Could events happening in dreams be real in another parallel universe?

No. There's no evidence to support the many-worlds interpretation. There's no evidence to support string theory.

There's no evidence to support m-theory. There's no evidence to prove the existence of parallel universes.. but that doesn't mean they don't exist. No, I think our mind is that powerful.

It can make us believe like we're in some other realm when we're dreaming.

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.