•  21
    Epistemic Degradation and Testimonial Injustice
    In Jennifer Lackey (ed.), Applied Epistemology, Oxford University Press. pp. 151-170. 2021.
    In this chapter, Geoff Pynn asks what is the nature of the wrong involved in cases of testimonial injustice. After raising problems for accounts that explain the wrong in terms of _objectification_, where speakers are treated as mere sources of information rather than as informants, and in terms of _derivatization_, where speakers are treated as if their epistemic contributions are solely in support of—and not in tension with—any of our own capacities, Pynn proposes what he calls a _degradation_…Read more
  •  121
    Contextualizing Knowledge
    Philosophical Review 129 (2): 317-322. 2020.
  •  856
    Assertibility and Sensitivity
    Acta Analytica 29 (1): 99-117. 2014.
    Epistemologists have proposed various norms of assertion to explain when a speaker is in an epistemic position to assert a proposition. In this article I propose a distinct necessary condition on assertibility: that a speaker should assert only what she sensitively believes, where a subject's belief is sensitive just in case the subject would not hold it if it were false. I argue that the Sensitivity Rule underwrites simple explanations for three key features of assertibility that pose explanato…Read more
  •  1005
    Unassertability and the Appearance of Ignorance
    Episteme 11 (2): 125-143. 2014.
    Whether it seems that you know something depends in part upon practical factors. When the stakes are low, it can seem to you that you know that p, but when the stakes go up it'll seem to you that you don't. The apparent sensitivity of knowledge to stakes presents a serious challenge to epistemologists who endorse a stable semantics for knowledge attributions and reject the idea that whether you know something depends on how much is at stake. After arguing that previous attempts to meet this chal…Read more
  •  2676
    Pragmatic Contextualism
    Metaphilosophy 46 (1): 26-51. 2015.
    Contextualism in epistemology has traditionally been understood as the view that “know” functions semantically like an indexical term, encoding different contents in contexts with different epistemic standards. But the indexical hypothesis about “know” faces a range of objections. This article explores an alternative version of contextualism on which “know” is a semantically stable term, and the truth-conditional variability in knowledge claims is a matter of pragmatic enrichment. The central id…Read more
  •  1207
    The Bayesian explanation of transmission failure
    Synthese 190 (9): 1519-1531. 2013.
    Even if our justified beliefs are closed under known entailment, there may still be instances of transmission failure. Transmission failure occurs when P entails Q, but a subject cannot acquire a justified belief that Q by deducing it from P. Paradigm cases of transmission failure involve inferences from mundane beliefs (e.g., that the wall in front of you is red) to the denials of skeptical hypotheses relative to those beliefs (e.g., that the wall in front of you is not white and lit by red lig…Read more