Very well...science has shown us the causation behind the world and universe as it exists today. We know "how" things wound up the way they are....but why? What is the driving force behind evolution, natural selection, the expansion of the universe, etc...Why did single celled organism's fight their environment and struggle over millions of years to become something more?

We know "how" things wound up the way they are to an extent, there are a number of things we still definitely do not know. But the driving forces behind evolution are something we have a very good understanding of. I'm not a biologist but in what sense do you use the word fighting?

Modern organisms fighting is a complex phenomenon. It comes from an intelligence coupled with a desire not to be killed. The reason that the intelligence developed coupled with a desire not to be killed, is that the successful ancestors of this modern organism shared those traits. Organisms which were not "randomly" selected for, died out and did not pass on their genes. You can see why, then that we all generally want to fight to stay alive as individuals. This is also a large part of the reason why we want to have sex as opposed to not wanting to have sex.

It isn't got to do with the assertion that modern organisms are evolving toward some kind of end goal. An end goal doesn't factor into it.

This can be pared down all the way to the first "lifeforms". Molecules behaving naturally together to battle against other natural influences will eventually succeed in becoming sentient self replicating complex beings 100% more often than ones that started out with molecules that don't naturally work together.

I find it hard to believe the universe is a result of mere chance. We know to a certain extent how the Big Bang occurred...but WHY? The laws of physics tell us nothing can move without a causing force...so what was the force or energy that caused the formation of the universe?

But you're looking at it in reverse. You're taking what is already here and then trying to figure out what kind of an intelligence would put it together. Instead you should follow it up the tree. Start at the big bang and notice that the way the universe has come together is just the way it has come together based on the way molecules interact with each other. What makes you believe that there is more to it?

This may be from the area of "stuff we don't know" but regardless: Laurence Krauss just recently released a new book called "A universe from nothing" wherein he details new insights about what "nothing" is, "nothing" is apparently quite a lot. We also have the Higgs Boson now, which was hypothesized to exist based on a model of the big bang that doesn't require any outside influence. The Higgs boson is in fact like the ignition switch or the fuse that could have began the occurrence of the big bang.

Why do we as humans even debate this? It doesn't factor into our survival...why do we care so much?

I'm not sure there's a lot of speculation on this stuff. Several biologists have been saying that it is an evolutionary advantage to see intelligence in things. But I haven't read any of the papers on it at all. To me religion is an unfortunate human trait.

I'm not a particularly religious person, but neither am I an atheist in the sense many of you in this subreddit are. I studied religion in college because I find it fascinating. I don't know if there's a God or gods or life force or whatever, and I won't know in this life. But I do find it hard to accept that our world, my experience, is just a byproduct of randomness. The intelligence (or lack thereof, in teh case of teh internetz) I witness every day in people, animals, plants, the entire ecological system, to me says there is some inherent intelligence in the universe that physical science cannot currently explain.

What do you mean you see intelligence in the universe?