To add to the cacophony of "I built one of these too!", here's mine: http://mattdw.github.com/experiments/image-evo/ http://mattdw.github.com/experiments/image

To add to the cacophony of "I built one of these too!", here's mine: http://mattdw.github.com/experiments/image-evo/ http://mattdw.github.com/experiments/image-evo/ It's more strictly a genetic algorithm than the OP, too, as it's mutating a population, and instances age and eventually die.