 Natural languages lexicalize only a small share of our concepts. The primary bearers of vagueness are concepts rather than words (Bacon 2018). Aphasia does not end vague thinking. Insofar as we attribute thinking to non-linguistic animals, we attribute vague thinking. Peirce’s emphasis on a community of inquirers encourages a sociology of language. Ludwig Wittgenstein’s attack on the possibility of a private language was intended to remove any rival to a community based approach to language. Yet asocial vagueness remains viable. This motivates some epistemicists to explain our ignorance more metaphysically, say, an effect of there being no truth-maker to control the truth-value of a borderline statement (Sorensen 2001, chapter 11).