changed "no intrinsic fitness function" in "no external fitness function" in the fitness function paragraph. AFAIK, intrinsic fitness function is exactly what DB has, I.e. it has a fitness function that's intrinsic to the simulated system, not imposed from the outside.
Good article, anyway (I appreciated the weaknesses section very much) :)
Ah, and there's a war going on about the main page, I see. :)