Abstract
As we all know, people often do not do what would be the rational thing to do. Both psychologists and philosophers have long been interested in explaining this aspect of the human condition. Also, the relation between everyday irrationality and pathological breakdowns of rationality is a familiar topic of discussion in psychiatry. It is not merely the failures themselves that present interesting questions; there is also the hope that, by understanding when and why we violate rational norms, we might get a firmer grasp on what it means to meet such norms, and thus gain a deeper understanding of the rational capacities of human beings. The capacity we focus on herein is our capacity for practical rationality...