My aim in the paper will be to better understand what faultless disagreement could possibly consist in and what speakers disagree over when they faultlessly do so. To that end, I will first look at various examples of faultless disagreement. Since I will eventually claim that different forms of faultless disagreement can be modeled semantically on different forms of context-sensitivity I will, in a second step, discuss three different semantic accounts that all promise to successfully accommodate certain forms of context-sensitivity: (...) Indexical Contextualism, Nonindexcal Contextualism and Radical Relativism . Focussing on the controversy between Indexical and Nonindexical Contextualists the remainder of the paper will be devoted to the question which theory is best suited to handle what kind of disagreement. (shrink)

The use of ‘S knows p’ varies from context to context. The contextualist theories of Cohen, Lewis, and DeRose explain this variation in terms of semantic hypotheses: ‘S knows p’ is indexical in meaning, referring to features of the ascriber’s context like salience, interests, and stakes. The linguistic evidence against contextualism is extensive. I maintain that the contextual variation of knowledge claims results from pragmatic factors. One is variable strictness :395–438, 2007). In addition to its strict use, ‘S knows p’ (...) may be used loosely to implicate that S is close enough to knowing p for contextually indicated purposes. Here I explore another variable: belief about what is known. This factor is pragmatic rather than semantic in that it affects the use of ‘S knows p’ without affecting its truth conditions. While variation in strictness accounts for the variation in the bank, parking, and some lottery cases, variation in belief accounts for the variation in other lottery cases and the epistemology cases. Along the way, I sketch an insensitive invariantist semantics that is strict but non-skeptical, and show how it works with these pragmatic factors. (shrink)

I articulate the challenge disagreement poses for epistemic contextualism, and then discuss several possible replies on behalf of the contextualist.