 Some view the perception-cognition gap as evidence for the claim that people use fundamentally different strategies for each type of task  (section 7.2).  An approximation of an optimal method is not necessarily an optimal approximation of that method, and the study of cognitive judgments and deliberative decision-making is led astray by assuming otherwise (Mongin 2000). Another view of the perception-cognition gap is that it is largely an artifact of methodological differences across studies rather than a robust feature of human behavior. We review evidence for this second argument here.