That is why people try to grow complexity nowadays, instead of designing it. It turns out evolution is pretty efficient at this process despite its seeming inefficiency of exploring a possibility space.
http://www.wired.com/wiredscience/2010/01/slime-mold-grows-network-just-like-tokyo-rail-system/
Sorry to go off-topic (
), but this reminds me of potato chips that look like Abraham Lincoln...