 Most theorists of vagueness conceive of vagueness as a semantic phenomenon, as somehow rooted in the meanings of words like ‘tall’ and ‘old’. As we shall see, semantic theories typically introduce special nonclassical logics and/or semantics in order to resolve the paradox (and accommodate the phenomenon of borderline cases). In contrast, epistemicists think that vagueness is just a form of ignorance: vague terms have sharp boundaries whose locations are hidden from us. In fact, heaps are sharply divided from non-heaps, and tall heights are sharply divided from average ones, but we cannot discover where those divisions lie (e.g., Sorensen 1988, 2001; Williamson 1994a,b, 2000; Graff 2000, Fara 2008; Rescher 2009). On this view, the sorites paradox is dispatched immediately: the major premise, or one of the conditional premises, is simply false. And bivalence is preserved: any application of a vague term either is true or is false, though we cannot always know which.