Volume 96, Issue 2, April 2019
Reasons and Rationality
Rationality, Reasoning Well, and Extramental Props
Recently, a cottage industry has formed with the expressed intent of analyzing the nature of personal-level reasoning and inference. The dominant position in the extant philosophical literature is that reasoning consists in rule-governed operations over propositional attitudes. In addition, it is widely assumed that our attitude updating procedures are purely cognitive. Any non-cognitive activity performed in service of updating our attitudes is external to the updating process—at least in terms of rational evaluation. In this paper, I argue that whether one has rationally updated one’s attitudes and whether the resultant attitudes are rational can (at least partially) depend on one’s interactions with one’s environment and body to scaffold one’s ability to arrive at attitudes that are rationally appropriate given one’s evidence.