This is implicitly penalized, since complex systems with many duplications will result in random phenotypes. If the chance a rule disappears is only slightly larger than the chance of rule duplication or creation, unused rules might over time evolve away.
This is implicitly penalized, since complex systems with many duplications will result in random phenotypes. If the chance a rule disappears is only slightly larger than the chance of rule duplication or creation, unused rules might over time evolve away.