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The Minimal Complexity of Adapting Agents Increases with Fitness

Figure 7

Distribution of evolved complexity with and without selection-pressure for 64 independent histories along their line-of-descent (LOD).

A. Distribution of along the LOD using our standard selection based on the fitness after 45,000 generation. Fitness is as high as 91.27%, with a maximal value of 1.57 bit. B. Fitness-based selection is then replaced by random selection followed by the usual stochastic mutation of the genome. 1,000 generation later, the population along the LOD has degenerated such that both the fitness as well as drop to vanishingly small values. The error bars are due to Poisson counting error.

doi: https://doi.org/10.1371/journal.pcbi.1003111.g007