> random expression trees mutating. > OK, so less Ray's Tierra then Koza's Genetic Programming? Still too much structure "baked in", I'd say. All the GP stuff I've ever seen has been more about selection than "natural" evolution; the modularity, replication and selection is provided for free by the environment.
Thanks for the author reccomendations! I haven't head of Ganti (or Kampis or Fontana) before, and I share your discomfort with philosophizing. I do have a fond spot for Kauffman, though... -- Max
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