The thing is, it just doesn’t make sense that another universe was created. How would going back in time and changing history create a whole other universe? Sorry not buying it.
Read up on the many-worlds interpretation of quantum physics. Once you do, it’s not too hard to imagine how time travel may create a parallel universe.
hmm, I am not sure. Apparently there is an idea that there multiple parallel universes where all possible alternate histories and futures are real. But time travel creating a parallel universe? I am not sure of that. It just doesn’t make sense to me. Of course, obviously I have very little understanding of quantum physics and whatnot.