Epistemically Vague Boundaries without Margins of Error

I propose to give a solution to the sorites paradox with respect to monadic predicates expressing sensible qualities that is squarely within the epistemicist camp of Williamson (1994, 1996), Sorenson (1988, 2001), and Rescher (2009). In particular, I will address what appears to be the Achilles’ heel of that account: namely, the problem of giving a plausible story about how an exact boundary around the extension of such predicates can be determined by the cooperation of the world and our linguistic practices. This solution will rely on recent work on the metaphysics of properties and thus will provide a metaphysical, rather than epistemological, defense of epistemicism. I will focus on the sorites paradox as the entrance point into the problem.