What it be reasonable to believe that the universe...?

Is part of another Universe. What I mean is that in a nearby universe had a enormous star explosion that caused a wormhole or blackhole to a random spot in the universe we are in now causing everything to be pulled in and spilled out here. Would that be another view of the big bang theory considering how the universe ''came from a pin drop of energy'' where the wormhole/blackhole just looked like it'd be the size of a pin drop because the universe is so huge and endless. Does that make sense to anyone? I'm not expecting agreeable answers from theists tbh...Just wondering if that theory I typed is reasonable to believe.