Right now I'm looking for something like a fractal. Where we get large constructs out of a small equation.
http://www.youtube.com/watch?v=HmLS2WXZQxU
Those are obvious rare exceptions though, and evolution never built something as fast as a jet etc. and plenty of other stuff that would need foresight. Not sure if there is some sort of somewhat simple engineering principle behind brains/consciousness that we just havn't figured out yet, but if we knew it, maybe we could engineer it like a jet instead of using evolution. A jet seems extremely simple relative to just about any of nature's locomotion creation though.
For the comment below, interesting fractal 'amplification' idea. I've briefly thought about positive feedback loops possibly building something interesting. But mostly just as some vague analogy since I don't have enough programming knowledge to experiment much.