Contenders for GUT

Everyone's on the lookout for GUT - the grand unifaction theory, one simple set of assumptions that can explain everything.
Something many of us wouldn;t have cared to consider is the possibility that this theory is already with us, just waiting for the correct application. When I stumbled across Darwinism, I realised that this was a perfect contender. This is already explained in detail, but think about it. Because of time, everything in the universe evolves. Some continue to exist, some don't, but everything changes. Like "selfish" in Richard Dawkin's The Selfish Gene, anything that survives, acts as though it always had an intention to survive. In animals this may be aconscious motivation, but we can simply apply this to say the continent of Asia, or the Sun or even ideas and notions. There is competition, and the best pulls through. Again, survival of the fittest is slightly misunderstood, but it will explain the point here anyway. Look at the media, look at medicine... this holds true.
There are some flaws though. Some things don't evolve - like the basic laws of physics. Our perception of them might change and mutate, but the laws themselves do not change. It can also not explain non sexually motivated activities, though many would say that such activities do not exist.
There is another elegant theory that can contend to be the GUT. Game Thoery. Incorporates evolution, but is not as simple. There is competition, there is also knowledge of the competition, and knowledge of the other element's psyche to some extent... and so on. Amazingly enough, it seems as if Game Theory is required for explaining the behavior of biological organisms.
Game theory can be put into practice anywhere, and this is already accpeted. Even when you are interacting with your own computer...

will try to see if there are more all-pervading theories.

And oh yeah, I forgot my GUT, actually someone else's (if Forrest Gump is to be followed, then Forrest Gump's), and as I said, it just required the correct application (that's where I come in). It is really simple, it is really elegant, and it really does explain everything - Shit Happens.