So, if all galaxies existed in a central spot from the beginning, then exploded outwards with the big bang, meaning shot out in ever direction away from that central point and also away from each other, how can a galaxy crash in to another galaxy?
Given all galaxies are heading outwards from one another and from each other, a collision should be impossible.
That’s an interesting point.
It must mean that the globs or whatever flying out of the bang, were at different speeds and trajectories.
I’ve still got unresolved issues with something arising out of alleged nothingness. Be it a sub sub etc atomic particle thingy.
Or a piece of processed cheese teleported from a distant exo universe beyond our observation that started our universe.
But I live in vain hope that if we interested in survival, humankind can live peacefully and after helping and resourcing people, animals and the environment, we can spend the worlds defence budget on astronomy, space and physics etc.
Try to do something constructive with our short human epoch.