Wesley Buckwalter

Alexander Bird and Darrell Rowbottom have argued for two competing accounts of the concept of scientific progress. For Bird, progress consists in the accumulation of scientific knowledge. For Rowbottom, progress consists in the accumulation of true scientific beliefs. Both appeal to intuitions elicited by thought experiments in support of their views, and it seems fair to say that the debate has reached an impasse. In an attempt to avoid this stalemate, we conduct a systematic study of the factors that underlie judgments about scientific progress. Our results suggest that (internal) justification plays an important role in intuitive judgments about progress, questioning the intuitive support for the claim that the concept of scientific progress is best explained in terms of the accumulation of only true scientific belief

According to a prominent claim in recent epistemology, people are less likely to ascribe knowledge to a high stakes subject for whom the practical consequences of error are severe, than to a low stakes subject for whom the practical consequences of error are slight. We offer an opinionated "state of the art" on experimental research about the role of stakes in knowledge judgments. We draw on a first wave of empirical studies--due to Feltz & Zarpentine (2010), May et al (2010), and Buckwalter (2010)--which cast doubt on folk stakes sensitivity, and a second wave of empirical studies--due to Pinillos (2012) and Sripada & Stanley (2012)--said to vindicate it, as well as new studies of our own. We conclude that the balance of evidence to date best supports Folk stakes insensitivity, or that all else equal, stakes do not affect knowledge ascription.

Epistemic contextualism is the theory that “knows” is a context sensitive expression. As a linguistic theory, epistemic contextualism is motivated by claims about the linguistic behavior of competent speakers. This chapter reviews evidence in experimental cognitive science for epistemic contextualism in linguistic behavior. This research demonstrates that although some observations that are consistent with epistemic contextualism can be confirmed in linguistic practices, these observations are also equally well explained both by psychological features that do not provide support for contextualism and by rival theories that are inconsistent with contextualism. I conclude that the motivation for epistemic contextualism is underdetermined by existing experimental evidence, yielding little reason to accept it as an account of our actual linguistic practices.

Philosophers of mind typically group experiential states together and distinguish these from intentional states on the basis of their purportedly obvious phenomenal character. Sytsma and Machery (Phil Stud 151(2): 299–327, 2010) challenge this dichotomy by presenting evidence that non-philosophers do not classify subjective experiences relative to a state’s phenomenological character, but rather by its valence. However we argue that S&M’s results do not speak to folk beliefs about the nature of experiential states, but rather to folk beliefs about the entity to which those experiential states are attributed. In two experiments, we demonstrate that ordinary attributions of subjective experiences (of smell and felt emotions) to a simple robot are not sensitive to valence, but instead respond to functional assumptions about the entity to which the states are (or are not) attributed.