The Why-Be-Rational Challenge

Abstract

Besides the problems with detachment, proponents of the view that structural requirements of rationality are normative face the challenge to identify a reason that counts in favour of conforming to rational requirements. There are three possible ways to account for this challenge. The first is to present instrumental or other derivative reasons to conform to rational requirements (5.1). The second is to argue that rational requirements are themselves reasons (5.2). The third is to give some kind of buck-passing account of rational requirements, according to which such requirements are verdictive statements about reasons that exist independently of them (5.3–5.4). Chapter 5 argues that none of these strategies succeed. Finally, two accounts that have claimed to explain the normativity of structural rationality without assuming that rational requirements are necessarily accompanied by reasons, are discussed and rejected: the transparency account (5.5), and the apparent reasons account (5.6).