The normativity of so-called “coherence” or “structural” requirements of rationality has been hotly debated in recent years. However, relatively little has been said about the nature of structural rationality, or what makes a set of attitudes structurally irrational, if structural rationality is not ultimately a matter of responding correctly to reasons. This paper develops a novel account of incoherence (or structural irrationality), critically examining Alex Worsnip’s recent account. It first argues that Worsnip’s account both over-generates and under-generates incoherent patterns of (...) attitudes, and then proposes an alternative that both avoids these problems and captures a crucial insight behind Worsnip’s account. According to this account, a set of attitudes is incoherent just in case having all of the attitudes in that set is incompatible with reacting to a question in a way that one is, in virtue of having the attitudes, committed to. (shrink)

You ought to believe in accordance with available evidence. This evidential norm, as widely recognized, can be implausibly demanding by requiring you to hold pointless beliefs. In this paper, I first consider some seemingly promising versions of the positive evidential requirement to form beliefs in accordance with your evidence and argue that they either fail to avoid the problem of pointlessness or fail to bind you independently of practical requirements. I then show that even the negative requirement not to believe (...) against your evidence falls prey to the same problem: either it enjoins pointlessness or its binding force depends essentially on practical norms. This is puzzling, as our epistemic practice seems to presuppose evidential standards that are independent of practical rationality. I suggest that the alleged evidential “norms” are evaluative ‘ought’-statements about what it would be epistemically ideal for you to do, which, on their own, do not issue any genuine prescriptions or demands. (*published with open access). (shrink)