Title: Long-Term Evolution of Genetic Programming Populations,
Abstract: We evolve binary mux-6 trees for up to 100000 generations evolving some
programs with more than a hundred million nodes. Our unbounded Long-Term
Evolution Experiment LTEE GP appears not to evolve building blocks but does
suggests a limit to bloat. We do see periods of tens even hundreds of
generations where the population is 100 percent functionally converged. The
distribution of tree sizes is not as predicted by theory.