Coincidences
I've always had a bit of trouble with cosmology as a science. It's very cool, and there some very beautiful explanations for some very big, unfathomable questions. And i really and genuinely do enjoy it, since it's really fundamentally the study of reality. On a certain level, science breaks down to that absolute question, and that's a strength and a weakness. If things happen for a reason, then for what reason is the a universe? Or a multiverse? Or just generally, stuff as opposed to no stuff?

I do believe everything happens for a reason. We like to call things that happen randomly coincidences when we don't see the reason, but there's always a reason, be it one based on some physical law of cause and effect, some cosmological philosophy, or... something else. I believe that it's there, even if I don't or can't know exactly what the reason is, or fully understand it.