When Expert Disagreement Supports the Consensus

It is often suggested that disagreement among scientific experts is a reason not to trust those experts, even about matters on which they are in agreement. In direct opposition to this view, I argue here that the very fact that there is disagreement among experts on a given issue provides a positive reason for non-experts to trust that the experts really are justified in their attitudes towards consensus theories. I show how this line of thought can be spelled out in three distinct frameworks for non-deductive reasoning: namely, Bayesian Confirmation Theory, Inference to the Best Explanation, and Inferential Robustness Analysis.     

The Hooded Man

The Hooded Man Paradox of Eubulides concerns the apparent failure of the substitutivity of identicals in epistemic (and other intentional) contexts. This paper formulates a number of different versions of the paradox and shows how these may be solved using semantics for quantified epistemic logic. In particular, two semantics are given which invalidate substitution, even when rigid designators are involved.     

Motivational Approaches to Intellectual Vice

Despite the now considerable literature on intellectual virtue, there remains relatively little philosophical discussion of intellectual vice. What discussion there is has been shaped by a powerful assumption—that, just as intellectual virtue requires that we are motivated by epistemic goods, intellectual vice requires that we aren't. In this paper, I demonstrate that this assumption is false: motivational approaches cannot explain a range of intuitive cases of intellectual vice. The popularity of the assumption is accounted for by its being a manifestation of a more general understanding of vice as an inversion or mirror image of virtue. I call this the inversion thesis, and argue that the failure of the motivational approach to vice exposes its limitations. I conclude by suggesting that recognizing these limitations can help to encourage philosophical interest in intellectual vice.     

How to be Conservative: a Partial Defence of Epistemic Conservatism

Conservatism about perceptual justification tells us that we cannot have perceptual justification to believe p unless we also have justification to believe that perceptual experiences are reliable. There are many ways to maintain this thesis, ways that have not been sufficiently appreciated. Most of these ways lead to at least one of two problems: the first is an over-intellectualization problem, whereas the second concerns the satisfaction of the epistemic basing requirement on justified belief. I argue that there is at least one Conservative view that survives both difficulties, a view which has the further ability to undercut a crucial consideration that has supported Dogmatist views about perceptual justification. The final section explores a tension between Conservatism and the prospect of having a completely general account of propositional justification. Ironically, the problem is that Conservatives seem committed to making the acquisition of propositional justification too easy. My partial defence of Conservatism concludes by suggesting possible solutions to this problem.     

Accuracy,Verisimilitude, and Scoring Rules

Suppose that beliefs come in degrees. How should we then measure the accuracy of these degrees of belief? Scoring rules are usually thought to be the mathematical tool appropriate for this job. But there are many scoring rules, which lead to different ordinal accuracy rankings. Recently, Fallis and Lewis [2016] have given an argument that, if sound, rules out many popular scoring rules, including the Brier score, as genuine measures of accuracy. I respond to this argument, in part by noting that the argument fails to account for verisimilitude—that certain false hypotheses might be closer to the truth than other false hypotheses are. Oddie [forthcoming], however, has argued that no member of a very wide class of scoring rules (the so-called proper scores) can appropriately handle verisimilitude. I explain how to respond to Oddie's argument, and I recommend a class of weighted scoring rules that, I argue, genuinely measure accuracy while escaping the arguments of Fallis and Lewis as well as Oddie.     

The Pursuit of Epistemic Good

Pace Zagzebski, there is no route from the value of knowledge to a non–reliabilist virtue–theoretic epistemology. Her discussion of the value problem is marred by an uncritical and confused employment of the notion of a "state" of knowledge, an uncritical acceptance of a "knowledge–belief" identity thesis, and an incoherent presumption that the widely held thought that knowledge is more valuable than true belief amounts to the view that knowledge is a state of true belief having an intrinsic property which a state of 'mere" true belief lacks. Her arguments against a "machine–product" conception of knowledge are undermined by these flaws, while the alternative "agent–act" model she recommends is unattractive, at odds with the knowledge–belief identity thesis she favours, and no solution to the problem of the value of knowledge she poses. I end with the observation that her version of virtue–theoretic epistemology points in the direction of cognitive decision–theoretic norms, and I briefly discuss the bearing of this fact upon her viewpoint.     

Chisholm's Internalism and Its Consequences

Abstract: Among the important themes in Roderick Chisholm's epistemology are his commitment to internalism, his defense of the independence of epistemology from empirical science, and his assumption that we do know most of what we initially think we know. In “Roderick Chisholm and the Shaping of American Epistemology” Hilary Kornblith argues that Chisholm's views lead to a radical divorce between the factors that justify beliefs and the factors that cause beliefs, that Chisholm's views have the consequence that there is no connection between justification and truth, and that Chisholm's kind of epistemology is unable to give epistemic advice. I argue that Chisholm's views do not have these consequences.     

Can Internalism Be Saved?

Abstract: Richard Feldman argues that a good deal more of Chisholm's approach can be saved than I allow in “Roderick Chisholm and the Shaping of American Epistemology.” More than this, Feldman argues that there are other, and still more defensible, forms of internalism. I argue here that the problems I presented for Chisholm's view are not so easily sidestepped either within Chisholm's system or by other forms of internalism.