Pick A Rule, Any Rule: The Evolution Of Choice
Evolutionary biologists predict that traits and behaviors passed on through generations provide (or once provided) a population with a selective advantage over their competitors. Likewise, the tendency to stick to a rule could have been selected for over evolutionary time, to the degree that the behavior has been ingrained in certain individuals. The authors loosely refer to a population acting with consistent rules as one endowed with a "Gene of rationality." The tendency to stick to a rule could have been selected for over evolutionary time.