Dan Sperber & Hugo Mercier (2012) Reasoning as a Social Competence. In Hélène Landemore & Jon Elster (Eds.) Collective Wisdom: Principles and Mechanisms Cambridge UP. 368-392

“…We argue that the function of reasoning is primarily social and that it is the individual benefits that are side-effects. The function of reasoning is to produce arguments in order to convince others and to evaluate arguments others use in order to convince us. We will show how this view of reasoning as a form of social competence correctly predicts both good and bad performance in the individual and in the collective case, and helps explain a variety of psychological and sociological phenomena…”