There's still something bugging me though: According to observation, matter cannot be created or destroyed. That means the universe has always existed. However, according to observation, every event has a cause, which means (I think) that the existence of the universe had to have a cause.
This is why I believe humans may never be able to understand the universe. What if it doesn't have a cause? It's always existed and always will exist. No beginning, no end.
To quote Orson Scott Card (who interestingly enough is Mormon... easily best Mormon ever.)
I'm skipping a bit into the conversation because I'm lazy. Go buy Xenocide if you wanna read the whole thing.
"Think of it as if now was on the surface of a sphere (talking about time and space as dimensions, and now is a point on a graph or whatever.) Time is moving forward through the chaos of Outside like the surface of an inflating sphere, a balloon inflating. On the outside, chaos. On the inside, reality. Always growing, popping up new universes all the time. Now think of the sphere as having an infinite radius."
"The surface would be completely flat"
"Exactly."
"And you could never go all the way around it."
That's right, too. Infinitely large. Impossible even to count all the universes on the reality side. Now starting from the edge, you get on a starship and start heading in toward the center. The farther in you go, the older everything is. When do you get to the first one?"
"You don't. Not if you're traveling at a finite rate."
"You don't reach the center of a sphere of infinite radius, if you're starting at the surface, because no matter how far you go, no matter how quickly, the center, the beginning, is always infinitely far away."
"And that's where the universe began."
A completely unprovable view of the universe that is barely comprehensible, yet makes sense in a way. Think about it, try to visualize a sphere infinitely large... you can't. It baffles human understanding to think that you can never see the cause of something, that something has no cause. I think that the universe has no cause and humans can never truly grasp that concept and take it as truth, since everything we've ever had experience with has a beginning and an end.
I dunno. It makes sense to me and it's a fun concept to think about, and it arises a great question. If the universe has no cause, no beginning, and no end, what then?