Creating the universe through time travel

It's a big problem, the universe beginning. Why did it start? Moreover, how? If there was nothing there...

But I have a solution. There is a way you can create the universe without having a start point - time travel.

Solution A - something went back before the big bang or whatever started the universe, and the non-universe, having nowhere to put the matter, exploded out into the universe where eventually something would go back and make it.

Simple, no messy starting points. But there is a problem with it - time travel may indeed be impossible. The Grandfather paradox and related things argue against it a bit too much for the theory to stand up. So we come to solution B, which I came up with after reading an article on how new universes could be made through black holes. That may indeed be false as well, but it at least seems more possible than time travel.

Solution B - We have two universes. Let's call ours Universe A, and the other Universe 1. In Universe A, a black hole or something is formed, and creates Universe 1, which splinters off. Then later in Universe 1, a black hole is formed which creates Universe A. Both universes are created without the need for a starting point.

Now how exactly did that happen? You'd think that U1 couldn't really create UA - it was made by it, and it can't go back in time. BUT; who says time has to flow the same way in both universes? They are separate - they don't need to share time. And the connections - the "space between them" isn't really affected by time either. Time is something inside the universe, and things outside it can ignore our time.

My apologies, that last paragraph was not very clear. Basically; time is different in both universes, so they can get into a time loop as there is no causality between them to break. No starting point, very clean.