That thing about the crowded ...
well have you ever though about that, we are souls that encarnate .. again and again?

because that way it wont be 18 billions to come, because they are the same souls, that after death will return..
So its a cycle. And thus no real mortal.

And if you dont agree.. universe is infinite , thus, there is space for everybody


My only question is, what is the boundary of the universe if its infinite? how can something have no limit?
if its finite, what is the wall that make the universe apart from the otherside?