Many of you are no doubt familiar with cellular automata such as Conway's Game of Life. In Conway's Game of Life a world consists of an two dimensional array of cells. Each cell is in either of two states, live or dead, at any particular moment, and its next state …

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In many ways the field of artificial life has been quite successful, even if its faddish popularity has died off somewhat in the last few years. However, artificial life systems have had only limited success in clearly exhibiting the capacity for open-ended evolution—the capacity to sustain an indefinite increase …

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