Could it be right to convict and punish defendants using only statistical evidence? In this paper, I argue that it is not and explain why it would be wrong. This is difficult to do because there is a powerful argument for thinking that we should convict and punish defendants using statistical evidence. It looks as if the relevant cases are cases of decision under risk and it seems we know what we should do in such cases (i.e., maximize expected value). (...) Given some standard assumptions about the values at stake, the case for convicting and punishing using statistical evidence seems solid. In trying to show where this argument goes wrong, I shall argue (against Lockeans, reliabilists, and others) that beliefs supported only by statistical evidence are epistemically defective and (against Enoch, Fisher, and Spectre) that these epistemic considerations should matter to the law. To solve the puzzle about the role of statistical evidence in the law, we need to revise some commonly held assumptions about epistemic value and defend the relevance of epistemology to this practical question. (shrink)

People’s beliefs about normality play an important role in many aspects of cognition and life (e.g., causal cognition, linguistic semantics, cooperative behavior). But how do people determine what sorts of things are normal in the first place? Past research has studied both people’s representations of statistical norms (e.g., the average) and their representations of prescriptive norms (e.g., the ideal). Four studies suggest that people’s notion of normality incorporates both of these types of norms. In particular, people’s representations of what is (...) normal were found to be influenced both by what they believed to be descriptively average and by what they believed to be prescriptively ideal. This is shown across three domains: people’s use of the word ‘‘normal” (Study 1), their use of gradable adjectives (Study 2), and their judgments of concept prototypicality (Study 3). A final study investigated the learning of normality for a novel category, showing that people actively combine statistical and prescriptive information they have learned into an undifferentiated notion of what is normal (Study 4). Taken together, these findings may help to explain how moral norms impact the acquisition of normality and, conversely, how normality impacts the acquisition of moral norms. (shrink)

There has been considerable discussion recently of consequentialist justifications of epistemic norms. In this paper, I shall argue that these justifications are not justifications. The consequentialist needs a value theory, a theory of the epistemic good. The standard theory treats accuracy as the fundamental epistemic good and assumes that it is a good that calls for promotion. Both claims are mistaken. The fundamental epistemic good involves accuracy, but it involves more than just that. The fundamental epistemic good is knowledge, not (...) mere true belief, because the goodness of an epistemic state is connected to that state's ability to give us reasons. If I'm right about the value theory, this has a number of significant implications for the consequentialist project. First, the good-making features that attach to valuable full beliefs are not features of partial belief. The resulting value theory does not give us the values we need to give consequentialist justifications of credal norms. Second, the relevant kind of good does not call for promotion. It is good to know, but the rational standing of a belief is not determined by the belief's location in a ranked set of options. In the paper's final section, I explain why the present view is a kind of teleological non-consequentialism. There is a kind of good that is prior to the right, but as the relevant kind of good does not call for promotion the value theory shows us what is wrong with the consequentialist project. (shrink)

Philosophical conceptual analysis is an experimental method. Focusing on this helps to justify it from the skepticism of experimental philosophers who follow Weinberg, Nichols & Stich. To explore the experimental aspect of philosophical conceptual analysis, I consider a simpler instance of the same activity: everyday linguistic interpretation. I argue that this, too, is experimental in nature. And in both conceptual analysis and linguistic interpretation, the intuitions considered problematic by experimental philosophers are necessary but epistemically irrelevant. They are like variables introduced (...) into mathematical proofs which drop out before the solution. Or better, they are like the hypotheses that drive science, which do not themselves need to be true. In other words, it does not matter whether or not intuitions are accurate as descriptions of the natural kinds that undergird philosophical concepts; the aims of conceptual analysis can still be met. (shrink)

Perceptions guide our actions and provide us with evidence of the world around us. Illusions and hallucinations can mislead us: they may prompt as to act in ways that do not mesh with the world around us and they may lead us to form false beliefs about that world. The capacity view provides an account of evidence that does justice to these two facts. It shows in virtue of what illusions and hallucinations mislead us and prompt us to act. Moreover, (...) it shows in virtue of what we are in a better epistemic position when we perceive than when we hallucination. In this paper, I develop the capacity view, that is, the view that perceptual experience has epistemic force in virtue of the epistemic and metaphysical primacy of the perceptual capacities employed in perception. By grounding the epistemic force of experience in facts about the metaphysical structure of experience, the capacity view is not only an externalist view, but moreover a naturalistic view of the epistemology of perceptual experience. So it is an externalist and naturalistic alternative to reliabilism. I discuss the repercussions of this view for the justification of beliefs and the epistemic transparency of mental states, as well as, familiar problem cases. (shrink)

One attractive feature of process reliabilism is its reductive potential: it promises to explain justification in entirely non-epistemic terms. In this paper, I argue that the phenomenon of epistemic defeat poses a serious challenge for process reliabilism’s reductive ambitions. The standard process reliabilist analysis of defeat is the ‘Alternative Reliable Process Account’ (ARP). According to ARP, whether S’s belief is defeated depends on whether S has certain reliable processes available to her which, if they had been used, would have resulted (...) in S not holding the belief in question. Unfortunately, ARP proves untenable. I show, by way of counterexample, that ARP fails to articulate either necessary or sufficient conditions on defeat. Process reliabilists must either provide an alternative reductive account of defeat or renounce their reductive aspirations. (shrink)

Virtue epistemology was modeled on virtue ethics theories to transfer their ethical insights to epistemology. VE has had great success: broadening our perspective, providing new answers to traditional questions, and raising exciting new questions. I offer a new argument for VE based on the concept of cognitive achievements, a broader notion than purely epistemic achievements. The argument is then extended to cognitive transformations, especially the cognitive transformations brought about by argumentation.

In this paper, I argue against recent versions of justification norms of action and practical deliberation . I demonstrate that these norms yield unacceptable results in deception cases. However, a further modification of justification norms in the light of these results appears to be ad hoc. Hence, I claim, we should reject justification norms of action and practical deliberation.

At the end of a chapter in his book Race, Racism and Reparations, Angelo Corlett notes that “[t]here remain other queries about racism [than those he addressed in his chapter], which need philosophical exploration. … Perhaps most important, how might racism be unlearned?” (2003, 93). We agree with Corlett’s assessment of its importance, but find that philosophers have not been very keen to directly engage with the issue of how to best deal with, and ultimately do away with, racism. Rather, (...) they have tended to make cursory remarks about the issue at the end of papers devoted to defining “racism” or attempting to capture the essence of racism itself. In this article, we put the issue of how to best deal with racism front and center. We need not start from scratch, however. Despite not being central to many philosophical discussions about race, a number of different strategies for dealing with racism have been suggested. To that end, we have identified three of the most concrete proposals made by philosophers and social theorists, each of which seeks to mitigate racism by inducing psychological changes in individuals.2 For each, we formulate the.. (shrink)

I argue for the thesis (UL) that there are certain logical abilities that any rational creature must have. Opposition to UL comes from naturalized epistemologists who hold that it is a purely empirical question which logical abilities a rational creature has. I provide arguments that any creatures meeting certain conditions—plausible necessary conditions on rationality—must have certain specific logical concepts and be able to use them in certain specific ways. For example, I argue that any creature able to grasp theories must (...) have a concept of conjunction subject to the usual introduction and elimination rules. I also deal with disjunction, conditionality and negation. Finally, I put UL to work in showing how it could be used to define a notion of logical obviousness that would be well suited to certain contexts—e.g. radical translation and epistemic logic—in which a concept of obviousness is often invoked. (shrink)

Externalist analyses of justification typically include some sort of reliability requirement. But the fact that the beliefs of a demon victim can be justified despite their being formed in completely unreliable ways suggests that reliability isn’t required for justification. In this paper, I propose an analysis of justification in terms of proper function that enables us to hang on to the externalism without the reliability requirement. As an added bonus, the proposed analysis of justification yields an account of the elusive (...) connection between justification and truth. (shrink)

English: In this paper I indicate why I consider 'experimental philosophy' to be good news, though not as good as it could be, and not as all that new. I'll argue that there is no need to restrict experimental philosophy to eliciting intuitions through questionnaires. I'll indicate that good examples of experimental philosophy already exist in Artificial Intelligence and Cognitive Neuroscience. Dutch: Hieronder wil ik proberen aan te geven waarom ik de experimentele filosofie weliswaar als goed nieuws beschouw, maar niet (...) half zo goed als zou kunnen, en ook niet als echt nieuw. Qua filosofische experimenten beperkt de XF-beweging zich vooralsnog onnodig door haar focus op het eliciteren van intuïties, terwijl er reeds lang diverse goede voorbeelden van XF bestaan op het gebied van de kunstmatige intelligentie en de cognitieve neurowetenschap. (shrink)

One feature of vague predicates is that, as far as appearances go, they lack sharp application boundaries. I argue that we would not be able to locate boundaries even if vague predicates had sharp boundaries. I do so by developing an idealized cognitive model of a categorization faculty which has mobile and dynamic sortals (`classes', `concepts' or `categories') and formally prove that the degree of precision with which boundaries of such sortals can be located is inversely constrained by their flexibility. (...) Given the literature, it is plausible that we are appropriately like the model. Hence, an inability to locate sharp boundaries is not necessarily because there are none; boundaries could be sharp and it is plausible that we would nevertheless be unable to locate them. (shrink)

Our main aim in this paper is to develop two solutions or exorcisms to ward off the new evil demon problem against epistemic reliabilism. The first solution is designated as “indexical reliabilism” and the second as “normal-conditions reliabilism”. We will argue that the second solution is more plausible than the first. We will also argue that this second solution, if properly developed, can respond well to several recent objections. Therefore, reliabilism has good ways of dealing with the new evil demon (...) problem. (shrink)

This paper advances the debate over the question whether false beliefs may nevertheless have warrant, the property that yields knowledge when conjoined with true belief. The paper’s first main part—which spans Sections 2–4—assesses the best argument for Warrant Infallibilism, the view that only true beliefs can have warrant. I show that this argument’s key premise conflicts with an extremely plausible claim about warrant. Sections 5–6 constitute the paper’s second main part. Section 5 presents an overlooked puzzle about warrant, and uses (...) that puzzle to generate a new argument for Warrant Fallibilism, the view that false beliefs can have warrant. Section 6 evaluates this pro-Fallibilism argument, finding ultimately that it defeats itself in a surprising way. I conclude that neither Infallibilism nor Fallibilism should now constrain theorizing about warrant. (shrink)

In the last two decades, the greatest threat to armchair philosophy has been the natural kinds approach. On this view, philosophic theorizing should not be obsessed with the ideas of justice, goodness, and truth but should look outward to the world of objects to find these things. And if these things happen to be natural kinds, like kinds of rock or fish for instance, then clearly we should reject the armchair for the lab. The philosopher should leave the office and (...) join the scientist out in the field. Philosophy should become a species of science. We attempt to defend traditional/armchair philosophy by examining Hilary Kornblith’s naturalistic methodological approach to epistemology. Among other things, we argue that Kornblith’s approach leads to some surprising, undesirable results (at least undesirable to the naturalist), one of which is that Kornblith cannot discount epistemic internalism as a viable contender in the search for the nature of knowledge. His methodology actually requires that we take epistemic internalism seriously. (shrink)

The purpose of this paper is to explore the question whether and in what sense emotions might be said to provide reasons for actions or to rationalize them. This requires that one have a picture of the causal structure of actions that is sufficiently detailed for one to see how emotions can impinge on the proc-ess of action production. I present a two-tiered model of action explanation and try to exploit this model in a tentative account of the modes of (...) in-volvement of emotions in the explanation of action. In particular, I examine in what sense emotions can be said not just to explain actions, but also to rationalize them. (shrink)

Husserl and Sartre’s analyses of mental imagery and some of the latest cognitive research on vision provide a framework for understanding a number of films by Hitchcock (Psycho and Rear Window) and Buñuel (Un Chien Andalou), films which similarly probe the subtleties and uses of mental imagery. One of the many ways to enjoy these films is to see them as explorations of visual phenomenology; they allow us to enact, as well as reflect upon, mental images as part of the (...) film experience.<br><br><br><br><br><br>. (shrink)

This paper proposes and defends the multifactorial view of stereotyping. According to this view, multiple factors determine whether or not any act of stereotyping increases the chance of an accurate judgment being made about an individual to whom the stereotype is applied. To support this conclusion, various features of acts of stereotyping that can determine the accuracy of stereotyping judgments are identified. The argument challenges two existing views that suggest that it is relatively easy for an act of stereotyping to (...) increase the chance of an accurate judgment being made. In the process, it shows why stereotyping that associates black people more strongly than white people with criminality in the United States cannot be defended, and actions to reduce the stereotyping criticized, on the basis that engaging in this form of stereotyping increases the chance of accurate judgments. As each of these important conclusions is supported by results from empirical psychology, the discussion exemplifies and vindicates the naturalistic approach to epistemology, according to which psychological findings provide an important contribution to understanding the epistemic standing of beliefs. (shrink)

Following David Hitchcock and Stephen Toulmin, this paper takes warrants to be material inference rules. It offers an account of the form such rules should take that is designed (a) to implement the idea that an argument/inference is valid only if it is entitlement preserving and (b) to support a qualitative version of evidence proportionalism. It attempts to capture what gives warrants their normative force by elaborating a concept of reliability tailored to its account of the form such rules should (...) take. (shrink)

In a 2006 paper I claimed that the virtue arguments or inferences must have is not that they be truth-preserving, but that they be entitlement-preserving. I offered two reasons there why such a conception of argument virtue is needed for a satisfactory treatment of defeasible arguments and inferences. This paper revisits that claim, and assesses the prospects for a more thorough defence than was offered in that paper.

Since its modern inception in the early 1970s, informal logic has placed a special emphasis on the analysis of fallacies and argumentative dialogue schemes. Concurrent developments in speech communication circles exhibit a like concentration on the dialectical character of argument.

Part I Introduction The specific problem adressed in this thesis is: what is the rational use of theory and experiment in the process of scientific discovery, in theory and in the practice of drug research for Parkinson’s disease? The thesis aims to answer the following specific questions: what is: 1) the structure of a theory?; 2) the process of scientific reasoning?; 3) the route between theory and experiment? In the first part I further discuss issues about rationality in science as (...) introduction to part II, and I present an overview of my case-study of neuropharmacology, for which I interviewed researchers from the Groningen Pharmacy Department, as an introduction to part III. Part II Discovery In this part I discuss three theoretical models of scientific discovery according to studies in the fields of Logic, Cognition, and Computation. In those fields the structure of a theory is respectively explicated as: a set of sentences; a set of associated memory chunks; and as a computer program that can generate the observed data. Rationality in discovery is characterized by: finding axioms that imply observation sentences; heuristic search for a hypothesis, as part of problem solving, by applying memory chunks and production rules that represent skill; and finding the shortest program that generates the data, respectively. I further argue that reasoning in discovery includes logical fallacies, which are neccesary to introduce new hypotheses. I also argue that, while human subjects often make errors in hypothesis evaluation tasks from a logical perspective, these evaluations are rational given a probabilistic interpretation. Part III Neuropharmacology In this last part I discusses my case-study and a model of discovery in a practice of drug research for Parkinson’s disease. I discuss the dopamine theory of Parkinson’s disease and model its structure as a qualitative differential equation. Then I discuss the use and reasons for particular experiments to both test a drug and explore the function of the brain. I describe different kinds of problems in drug research leading to a discovery. Based on that description I distinguish three kinds of reasoning tasks in discovery, inference to: the best explanation, the best prediction and the best intervention. I further demonstrate how a part of reasoning in neuropharmacology can be computationally modeled as qualitative reasoning, and aided by a computer supported discovery system. (shrink)