Yes, this is sounding a bit odd, but bare with me here. If there was nothing to create the Universe, or any other Universes since there had to be something to begin with and that had to come from something, then we don't exactly exist.
Actually, you can. Thing is, you don't know if something goes on forever. You won't ever know. By definition, it has no end. Therefore, you can't know if it has an end or not. It may have an end, it might just take a very long time to hit that point.
Well, that was interesting to type up to say the least
