Linguistic Evidence and Substantive Epistemic Contextualism

Abstract

Epistemic contextualism (EC) is the thesis that the standards that must be met by a knowledge claimant vary with (especially conversational) contexts of utterance. Thus construed, EC may concern only knowledge claims (“Semantic EC”), or else the knowledge relation itself (“Substantive EC”). Herein, my concern is with “Substantive EC.” Let’s call the claim that the sorts of linguistic evidence commonly cited in support of Semantic EC also imply or support Substantive EC the “Implication Thesis” (IP). IP is a view about which some epistemologists have equivocated. Keith DeRose is a case in point. Herein I argue that IP is false, and that it is false for interesting reasons. To this end, I consider two other terms which DeRose investigates, “free will” and “potency” in his efforts to demonstrate the alleged inability of distinctly philosophical or skeptical doubts to infect ordinary epistemic discourse. I describe how and why these two examples speak against, rather than for, DeRose’s recommendation of Substantive EC.