Why do you always have to make everything so complicated?

What is the opposite of entropy?

If we consider entropy to be the process by which everything tends toward a uniform unordered state (not a strict scientific definition, I know, but close to the popular one), what name to give to the countervailing tendency of matter to differentiate and complexify? "Order" is too static a term for my purposes, since it seems to name the end result more than the means by which it's achieved.

Any nominations?