One universe. It's one of those paradoxical situations when the effect becomes the cause. What I'm suggesting is that because logically something can't come from nothing, some cataclysm in the present, past or future; be it the end of the universe or something else actually caused the big bang...
Couldn't the end of spacetime cause spacetime? As in some sort of looping paradox keeping existence in existence.
I just wanted to ask this question. It's probably wrong but I wanted to know what people think.