Epistemic Instrumentalism, Permissibility, and Reasons for Belief

Abstract

Epistemic instrumentalists seek to understand the normativity of epistemic norms on the model of practical instrumental norms governing the relation between aims and means. Non-instrumentalists often object that this commits instrumentalists to implausible epistemic assessments. This chapter argues that this objection presupposes an implausibly strong interpretation of epistemic norms. Once we realize that epistemic norms should be understood in terms of permissibility rather than obligation, and that evidence only occasionally provides normative reasons for belief, an instrumentalist account becomes available that delivers the correct epistemic verdicts. On this account, epistemic permissibility can be understood on the model of the wide-scope instrumental norm for instrumental rationality, while normative evidential reasons for belief can be understood in terms of instrumental transmission.