Duncan Pritchard

This paper explores how a certain theory of knowledge—known as anti-luck virtue epistemology—can account for, and in the process shed light on, the notion of an epistemic defeater. To this end, an overview of the motivations for anti-luck virtue epistemology is offered, along with a taxonomy of different kinds of epistemic defeater. It is then shown how anti-luck virtue epistemology can explain: why certain kinds of putative epistemic defeater are not bona fide; how certain kinds of epistemic defeater are genuine in virtue of exposing the subject to significant levels of epistemic risk; and how certain kinds of epistemic defeater are genuine in virtue of highlighting how the subject’s safe cognitive success does not stand in the appropriate explanatory relationship to her manifestation of relevant cognitive ability.

It has become almost a conventional wisdom to argue that Cartesian scepticism poses a far more radical sceptical threat than its classical Pyrrhonian counterpart. Such a view fails to recognise, however, that there is a species of sceptical concern that can only plausibly be regarded as captured by the Pyrrhonian strategy. For whereas Cartesian scepticism is closely tied to the contentious doctrine of epistemological internalism, it is far from obvious that Pyrrhonian scepticism bears any such theoretical commitments. It is argued here that by viewing the Pyrrhonian style of sceptical argument in terms of this contemporary epistemological externalist/internalist distinction one can gain a new insight into some of the more problematic elements of this variety of classical thought and also get a handle on certai contemporary worries that have been raised regarding the anti-sceptical efficacy of externalist theories of knowledge

Two key intuitions regarding knowledge are explored: that knowledge is a kind of cognitive achievement and that knowledge excludes luck. It is claimed that a proper understanding of how these intuitions should inform our conception of knowledge leads to some surprising results, not just as regards the theory of knowledge more generally but also as regards the epistemology of testimonial knowledge. In particular, it is argued that this conception of knowledge motivates a new kind of proposal B quasi-reductionism B that can accommodate the motivations behind both reductionist and anti-reductionist accounts of the epistemology of testimonial knowledge.

In a recent, and influential, article, Crispin Wright maintains that a familiar form of scepticismwhich finds its core expression in Descartes’ dreaming argumentcan be defused (or, to use Wright’s own parlance, “imploded”), by showing how it employs self-defeating reasoning. I offer two fundamental reasons for rejecting Wright’s ‘implosion’ of scepticism. On the one hand, I argue that, even by Wright’s own lights, it is unclear whether there is a sceptical argument to implode in the first place. On the other, I claim that even on the supposition that Wright has indeed succeeded in setting-up such an argument, he nevertheless fails to follow-through with an adequate response. A diagnosis of the failure of Wright’s approach is then given in the context of the wider sceptical debate.

Perhaps the most dominant anti‐sceptical proposal in recent literature –advanced by such figures as Stewart Cohen, Keith DeRose and David Lewis –is the contextualist response to radical scepticism. Central to the contextualist thesis is the claim that, unlike other non‐contextualist anti‐sceptical theories, contextualism offers a dissolution of the sceptical paradox that respects our common sense epistemological intuitions. Taking DeRose's view as representative of the contextualist position, it is argued that instead of offering us an intuitive response to scepticism, contextualism is actually committed to a revisionist stance as regards our everyday usage of epistemic terms. In particular, it is argued that the thesis fails to present a satisfactory explication of a notion –that of‘epistemic descent’– that is pivotal to the anti‐sceptical import of the account. On the positive side, however, it is claimed that although the contextualist response to scepticism is ultimately unsatisfying, DeRose's theory does contain within it the framework for a completely different ‐ and far more persuasive ‐ account of the‘phenomenology’of scepticism which runs along non‐contextualist lines

It is my contention that a number of prominent commentators on the problem of radical epistemological scepticism labour under a certain erroneous conception of what this problem involves. In particular, I argue that they tend to both underestimate and overestimate the issue that faces them. On the one hand, they are confused as to what would constitute a satisfactory answer to the sceptic. On the other, they concede far too much to the sceptic by failing to recognise that there are a number of defensive moves available to them, especially insofar as they endorse a version of epistemological externalism. In order to illustrate these claims, I focus upon Edward Craig's analysis of knowledge that, by his own admission, is unable to satisfactorily answer the challenge of radical scepticism.

In this article it is argued that the standard theoretical account of risk in the contemporary literature, which is cast along probabilistic lines, is flawed, in that it is unable to account for a particular kind of risk. In its place a modal account of risk is offered. Two applications of the modal account of risk are then explored. First, to epistemology, via the defence of an anti-risk condition on knowledge in place of the normal anti-luck condition. Second, to legal theory, where it is shown that this account of risk can cast light on the debate regarding the extent to which a criminal justice system can countenance the possibility of wrongful convictions

I offer a critical treatment of the contrastivist response to the problem of radical scepticism. In particular, I argue that if contrastivism is understood along externalist lines then it is unnecessary, while if it is understood along internalist lines then it is intellectually dissatisfying. Moreover, I claim that a closer examination of the conditions under which it is appropriate to claim knowledge reveals that we can accommodate many of the intuitions appealed to by contrastivists without having to opt for this particular brand of epistemological revisionism.

This essay offers a rearticulation and defence of the modal account of luck that the author developed in earlier work . In particular, the proposal is situated within a certain methodology, a component of which is paying due attention to the cognitive science literature on luck ascriptions. It is shown that with the modal account of luck properly articulated it can adequately deal with some of the problems that have recently been offered against it, and that the view has a number of attractions over competing proposals, such as the lack of control account

A very natural view about perceptual knowledge is articulated, one on which perceptual knowledge is closely related to perceptual discrimination, and which fits well with a relevant alternatives account of knowledge. It is shown that this kind of proposal faces a problem (the closure problem), and various options for resolving this difficulty are explored. In light of this discussion, a two-tiered relevant alternatives account of perceptual knowledge is offered which avoids the closure problem. It is further shown how this proposal can: (1) accommodate our intuitions about perceptual knowledge and perceptual discrimination in terms of the notion of primary relevance, (2) give an account of how alternatives can be rationally excluded without appeal to perceptual discrimination in terms of the notion of secondary relevance, and (3) deal with the problem posed by inverted Gettier cases, and hence explain what it means to rationally exclude alternatives which are of secondary relevance.

This paper examines the relevance of Wittgenstein’s On Certainty to the contemporary debate regarding the problem of radical scepticism. In particular, it considers two accounts in the recent literature which have seen in Wittgenstein’s remarks on “hinge propositions” in On Certainty the basis for a primarily epistemological anti-sceptical thesis—viz., the inferential contextualism offered by Michael Williams and the ‘unearned warrant’ thesis defended by Crispin Wright. Both positions are shown to be problematic, both as interpretations of Wittgenstein and as anti-sceptical theses. Indeed, it is argued that on a reading of On Certainty which has Wittgenstein advancing a primarily epistemological thesis, there is in fact strong evidence to suggest that Wittgenstein thought that no epistemic response to the sceptic was available—at best, it seems, only a pragmatic antisceptical thesis is on offer. Such a conclusion is not without import to the present debate regarding radical scepticism, however, since it poses a general challenge for how the sceptical argument is conceived in the contemporary literature.

A conspicuous oversight in recent debates about the vexed problem of the value of knowledge has been the value of knowledge-how. This would not be surprising if knowledge-how were, as Gilbert Ryle [1945; 1949] famously thought, fundamentally different from knowledge-that. However, reductive intellectualists [e.g., Stanley & Williamson 2001; Stanley 2011a; 2011b; Brogaard 2008; 2009; 2011] maintain that knowledge-how just is a kind of knowledge-that. Accordingly, reductive intellectualists must predict that the value problems facing propositional knowledge will equally apply to knowledge-how. We show, however, that this is not the case. Accordingly, we highlight a value-driven argument for thinking (contra reductive intellectualism) that knowledge-how and knowledge-that come apart.

Achievements are clearly something that we care about. We want a life rich in achievements, and we value the achievements of others. To be appointed to the job of one's dreams as a result of one's hard work and raw talent, such that it constitutes an achievement on one's part, is far more satisfying and worthy than getting it through other means where no achievement is involved . Similarly, the Olympic goal medal winner who gets her award by being the best in a strong field exhibits an achievement and is lauded for it, but her counterpart who attains the same result through, say, mere good luck , and who thus does not exhibit an achievement, is not gifted nearly as much praise. But what is an achievement, and what is it about achievements that makes us care about them so much?

A commonly expressed worry in the contemporary literature on the problem of epistemological scepticism is that there is something deeply intellectually unsatisfying about the dominant anti-sceptical theories. In this paper I outline the main approaches to scepticism and argue that they each fail to capture what is essential to the sceptical challenge because they fail to fully understand the role that the problem of epistemic luck plays in that challenge. I further argue that scepticism is best thought of not as a quandary directed at our possession of knowledge simpliciter, but rather as concerned with a specific kind of knowledge that is epistemically desirable. On this view, the source of scepticism lies in a peculiarly epistemic form of angst. It is always by favour of Nature that one knows something. [Wittgenstein 1969: §505]

We revisit an important exchange on the problem of radical skepticism between Richard Rorty and Michael Williams. In his contribution to this exchange, Rorty defended the kind of transcendental approach to radical skepticism that is offered by Donald Davidson, in contrast to Williams’s Wittgenstein-inspired view. It is argued that the key to evaluating this debate is to understand the particular conception of the radical skeptical problem that is offered in influential work by Barry Stroud, a conception of the skeptical problem which generates metaepistemological ramifications for anti-skeptical theories. In particular, we argue that, contra Williams, Rorty’s view that Davidson was offering a theoretical diagnosis of radical skepticism can be consistently maintained with his transcendental approach.

In his final notebooks, published as On Certainty , Wittgenstein offers a distinctive conception of the nature of reasons. Central to this conception is the idea that at the heart of our rational practices are essentially arational commitments. This proposal marks a powerful challenge to the standard picture of the structure of reasons. In particular, it has been thought that this account might offer us a resolution of the traditional scepticism/anti-scepticism debate. It is argued, however, that some standard ways of filling out the details of this proposal ultimately lead to an epistemology which is highly problematic. The goal here is to present a more compelling version of Wittgenstein’s account of the structure of reasons which can evade these difficulties.