You could introduce speciation by only allowing relatively similar genomes to successfully breed. My guess is that such an operator would be quite expensive, a

You could introduce speciation by only allowing relatively similar genomes to successfully breed. My guess is that such an operator would be quite expensive, and its benefits would need to be weight against that. A typical work-around for scenarios like this would be to have the various parameters change as the simulation carries on; e.g. later on it might make more sense to increase the number of elites as a way of limiting crossover.