Abstract
In Kauffman's Boolean automata model on the square lattice, the Darwinian fitness of survival can be defined as the fraction of elements which do not change from one iteration to the next. Biological mutations are simulated by filpping one bit in the rule of one site. Selection of the fitter mutant then optimizes the whole lattice completely. This optimization is particularly effective near the critical point of the transition to chaos, but is in itself not a critical phenomenon. Also a two-dimensional spin glass can be optimized in this way.
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Communicated by W. Klein
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Stauffer, D. Evolution by damage spreading in Kauffman model. J Stat Phys 74, 1293–1299 (1994). https://doi.org/10.1007/BF02188232
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DOI: https://doi.org/10.1007/BF02188232