Confidence, Belief, and Knowledge; The Vagueness of “Know(s)”
Knowledge does not require confidence. An agent may know without confidence because of misleading evidence or for other reasons. An agent may not believe what she knows. Misleading evidence never causes agents to lose knowledge. The vagueness of an expression may be visible to speakers or invisible. In the case of “bald,” it is visible; it is not visible for “know.” This is because knowledge standards are invisible. Vagueness is analyzed as being epistemic in the sense that our ignorance of whether a word applies in a case places no metaphysical constraints on the facts. Agential standards for evidence are also tri-scoped and application-indeterminate. There are cases where such standards determine no answer, knows or not; and there are cases where it is indeterminate whether, or not, standards determine an answer. Because Timothy Williamson’s argument against KK presupposes that knowledge requires confidence, his argument fails.