Can someone cleverer than me please explain?
Is it possible that all the antimatter is simply on the other side of the universe?
Here is a theory: Imagine the universe being a sphere, with one hemisphere made of matter and the other hemisphere made of antimatter. Now we have equal amounts and there's no odd asymmetry to explain. Our little planet is, of course, in the matter hemisphere... and we can't see the antimatter side because it is too far away over there on the other side.
I assume that cleverer people than me have already thought of all this and come up with some valid reason why it can't be true, can someone please explain it to an amateur like me?