For most of their respective existences, reliabilism and evidentialism (that is, process reliabilism and mentalist evidentialism) have been rivals. They are generally viewed as incompatible, even antithetical, theories of justification.1 But a few people are beginning to re-think this notion. Perhaps an ideal theory would be a hybrid of the two, combining the best elements of each theory. Juan Comesana (forthcoming) takes this point of view and constructs a position called “Evidentialist Reliabilism.” He tries to show how each theory can (...) profit by borrowing elements from the other. Comesana concentrates on reliabilism’s problems and how it might be improved by infusions from evidentialism. This paper follows a similar tack. My emphasis, however, is the reverse of Comesana’s. I highlight problems for evidentialism and show how it could benefit by incorporating reliabilist themes. I am not sanguine that evidentialists will see it my way. They might even view my proposals as an insidious attempt to convert evidentialists to reliabilism. Well, I won’t debate the best way to formulate this paper’s recipe. At any rate, it began with the idea (which anteceded my reading of Comesana) of creating a synthesis of reliabilism and evidentialism. It retains significant strands of that idea, although the synthesis theme does not pervade the entire paper. What is mentalist evidentialism? Its original formulation was succinct. (shrink)

When one encounters disagreement about the truth of a factual claim from a trusted advisor who has access to all of one's evidence, should that move one in the direction of the advisor's view? Conciliatory views on disagreement say "yes, at least a little." Such views are extremely natural, but they can give incoherent advice when the issue under dispute is disagreement itself. So conciliatory views stand refuted. But despite first appearances, this makes no trouble for *partly* conciliatory views: views (...) that recommend giving ground in the face of disagreement about many matters, but not about disagreement itself. (shrink)

Conciliatory views of disagreement maintain that discovering a particular type of disagreement requires that one make doxastic conciliation. In this paper I give a more formal characterization of such a view. After explaining and motivating this view as the correct view regarding the epistemic significance of disagreement, I proceed to defend it from several objections concerning higher-order evidence (evidence about the character of one's evidence) made by Thomas Kelly (2005).

Something about this argument sounds funny. As we’ll see, though, it takes some care to identify exactly what Moore has done wrong. Iwill assume that Moore knows premise (2) to be true. One could inquire into how he knows it, and whether that knowledge can be defeated; but Iwon’t. I’ll focus instead on what epistemic relations Moore has to premise (1) and to his conclusion (3). It may matter which epistemic relations we choose to consider. Some philosophers will diagnose Moore’s (...) argument using Contextualist machinery. They’ll say. (shrink)

Consider the skeptic about the external world. Let’s straightaway concede to such a skeptic that perception gives us no conclusive or certain knowledge about our surroundings. Our perceptual justification for beliefs about our surroundings is always defeasible—there are always possible improvements in our epistemic state which would no longer support those beliefs. Let’s also concede to the skeptic that it’s metaphysically possible for us to have all the experiences we’re now having while all those experiences are false. Some philosophers dispute (...) this, but I do not. The skeptic I want to consider goes beyond these familiar points to the much more radical conclusion that our perceptual experiences can’t give us any knowledge or even justification for believing that our surroundings are one way rather than another. (shrink)

An introduction to the debate of the epistemic significance of peer disagreement. This article examines the epistemic significance of peer disagreement. It pursues the following questions: (1) How does discovering that an epistemic equal disagrees with you affect your epistemic justification for holding that belief? (e.g., does the evidence of it give you a defeater for you belief?) and (2) Can you rationally maintain your belief in the face of such disagreement? This article explains and motivates each of the central (...) positions, including steadfast views and conciliatory views of peer disagreement, while at the same time raising challenges for each of them. It concludes by speculating about new directions that the debate will take. (shrink)

Conciliatory views of disagreement are an intuitive class of views on the epistemic significance of disagreement. Such views claim that making conciliation is often required upon discovering that another disagrees with you. One of the chief objections to these views of the epistemic significance of disagreement is that they are self-defeating. Since, there are disagreements about the epistemic significance of disagreement, such views can be turned on themselves, and this has been thought to be problematic. In this paper, I examine (...) several different incarnations of this objection and defend conciliatory views of disagreement from each of them, while making a modification regarding how such views should be understood. (shrink)

In the epistemology of disagreement literature an underdeveloped argument defending the claim that an agent need not conciliate when she becomes aware of epistemic peer disagreement is based on the idea that there are epistemic benefits to be gained from disagreement. Such benefits are unobtainable if an agent conciliates in the face of peer disagreement. I argue that there are good reasons to embrace this line of argument at least in inquiry-related contexts. In argumentation theory a deep disagreement occurs when (...) there is a disagreement between fundamental frameworks. According to Robert J. Fogelin disagreements between fundamental frameworks are not susceptible to rational resolution. Instead of evaluating this claim I argue that deep disagreements can lead to epistemic benefits, at least when inquiry is in view. Whether rational resolution is possible in cases of deep disagreements, their existence turns out to be epistemically beneficial. I conclude by examining whether this line of argument can be taken beyond research-related contexts.Dans la littérature sur l'épistémologie du désaccord, un argument sous-développé pour une approche non conciliatoire se fonde sur l'idée qu'il y a des bénéfices épistémiques à tirer du désaccord. De tels bénéfices sont impossibles à obtenir si un agent se concilie face au désaccord avec ses pairs, du moins dans les contextes liés à la recherche. Dans la théorie de l'argumentation, un désaccord profond se produit lorsqu'il y a un désaccord entre des propositions cadres. Je soutiens que des désaccords profonds peuvent mener à des avantages épistémiques, du moins dans le contexte de la recherche. Que la résolution rationnelle soit ou non possible en cas de désaccord profond, leur existence s'avère être bénéfique sur le plan épistémologique. (shrink)

According to Robert Fogelin, deep disagreements are disagreements about fundamental principles. He argues that deep disagreements cannot be rationally resolved. In this paper I argue against this thesis. A key part of the response depends upon the claim that disagreements can be rationally resolved not only by one participant rationally coming around to the other's point of view, but also by both of them rationally suspending judgment about the disputed proposition. I also claim that suspension of judgment may be the (...) rational response in the examples Fogelin characterizes as deep disagreements. I deny that this result has any troubling implications for critical thinking. (shrink)

Fear of Knowledge was in many ways an exercise in foolhardiness. It was to be a short book, accessible to the general reader, that would treat some of the trickiest issues in the foundations theory of knowledge, but that would nevertheless not seriously shortchange the subtleties that they involve. Someone should have warned me.

Relativist and constructivist conceptions of knowledge have become orthodoxy in vast stretches of the academic world in recent times. This book critically examines such views and argues that they are fundamentally flawed. The book focuses on three different ways of reading the claim that knowledge is socially constructed, one about facts and two about justification. All three are rejected. The intuitive, common sense view is that there is a way things are that is independent of human opinion, and that we (...) are capable of arriving at belief about how things are that is objectively reasonable, and is binding on anyone capable of appreciating the relevant evidence, regardless of their social or cultural perspective. Difficult as these notions may be, it is a mistake to think that recent philosophy has uncovered powerful reasons for rejecting them. (shrink)

Some philosophers believe that when epistemic peers disagree, each has an obligation to accord the other's assessment the same weight as her own. I first make the antecedent of this Equal-Weight View more precise, and then I motivate the View by describing cases in which it gives the intuitively correct verdict. Next I introduce some apparent counterexamples – cases of apparent peer disagreement in which, intuitively, one should not give equal weight to the other party's assessment. To defuse these apparent (...) counterexamples, an advocate of the View might try to explain how they are not genuine cases of peer disagreement. I examine David Christensen's and Adam Elga's explanations and find them wanting. I then offer a novel explanation, which turns on a distinction between knowledge from reports and knowledge from direct acquaintance. Finally, I extend my explanation to provide a handy and satisfying response to the charge of self-defeat. (shrink)

Can we give objective reasons for our most basic standards of reason-- our fundamental epistemic principles? I argue, against several forms of skepticism about reason, that we can, but that the reasons we can give for epistemic principles are ultimately practical, not epistemic.

Claims that science should be more democratic than it is frequently arouse opposition. In this essay, I distinguish my own views about the democratization of science from the more ambitious theses defended by Paul Feyerabend. I argue that it is unlikely that the complexity of some scientific debates will allow for resolution according to the methodological principles of any formal confirmation theory, suggesting instead that major revolutions rest on conflicts of values. Yet these conflicts should not be dismissed as irresoluble.

Introduction As the title indicates, the chief focus of this book is epistemic justification. But just what is epistemic justification and what is its place ...

In “The logic of deep disagreements” (Informal Logic, 1985), Robert Fogelin claimed that there is a kind of disagreement – deep disagreement – which is, by its very nature, impervious to rational resolution. He further claimed that these two views are attributable to Wittgenstein. Following an exposition and discussion of that claim, we review and draw some lessons from existing responses in the literature to Fogelin’s claims. In the final two sections (6 and 7) we explore the role reason can, (...) and sometimes does, play in the resolution of deep disagreements. In doing this we discuss a series of cases, mainly drawn from Wittgenstein, which we take to illustrate the resolution of deep disagreements through the use of what we call “rational persuasion.” We conclude that, while the role of argumentation in “normal” versus “deep” disagreements is characteristically different, it plays a crucial role in the resolution of both. (shrink)

In this paper I examine the case for epistemic relativism focusing on an argument for epistemic relativism formulated (though not endorsed) by Paul Boghossian. Before examining Boghossian’s argument, however, I first examine some preliminary considerations for and against epistemic relativism.

The equal weight view says that if you discover that you disagree with a peer, you should decrease your confidence that you are in the right. Since peer disagreement seems to be quite prevalent, the equal weight view seems to tell us that we cannot reasonably believe many of the interesting things we believe because we can always count on a peer to contest the interesting things that we believe. While the equal weight view seems to have skeptical implications, few (...) epistemologists worry about these implications because the equal weight view is quickly falling out of favor. In this paper, I present an analogical argument for the view and defend it from critics who think that we can justifiably retain confidence in the face of peer disagreement. (shrink)

While puzzles concerning the epistemic significance of disagreement are typically motivated by looking at the widespread and persistent disagreements we are aware of, almost all of the literature on the epistemic significance of disagreement has focused on cases idealized peer disagreement. This fact might itself be puzzling since it doesn’t seem that we ever encounter disagreements that meet the relevant idealized conditions. In this paper I hope to somewhat rectify this matter. I begin by closely examining what an idealized case (...) of peer disagreement looks like and what the Equal Weight View (EWV) of disagreement claims about the epistemic significance of such disagreements. After briefly defending the verdicts of the EWV in idealized disagreements I proceed to unpack the implications of stripping away the idealized conditions. In doing I show both why it is important to focus on idealized cases of peer disagreement and what we can learn from such cases that applies to the everyday cases of disagreement of which we are very familiar. (shrink)

Conciliatory theories of disagreement face a revenge problem; they cannot be coherently believed by one who thinks they have peers who are not conciliationists. I argue that this is a deep problem for conciliationism.

Claims that science should be more democratic than it is frequently arouse opposition. In this essay, I distinguish my own views about the democratization of science from the more ambitious theses defended by Paul Feyerabend. I argue that it is unlikely that the complexity of some scientific debates will allow for resolution according to the methodological principles of any formal confirmation theory, suggesting instead that major revolutions rest on conflicts of values. Yet these conflicts should not be dismissed as irresoluble.

We sometimes disagree not only about facts, but also about how best to acquire evidence or justified beliefs within the domain of facts that we disagree about. And sometimes we have no dispute-independent ways of settling what the best ways of acquiring evidence in these domains are. Following Michael Lynch, I call this phenomenon deep disagreement. In the paper, I outline various forms of deep disagreement, following but also in certain respects revising and expanding Lynch’s exposition in (2010, 2012). As (...) is well known, for the externalist about knowledge and epistemic justification deep disagreements may be nothing more than an unfortunate failure of communication. Yet, though he grants this, Lynch argues that deep disagreement points to a sort of practical problem. I agree. In my paper I propose a revised account of the sort of practical problem that deep disagreement may pose. In short, my claim is that deep disagreement may be a problem due to the role that shared factual beliefs may have in common decision-making. I discuss and assess various reactions to the problem of deep disagreement, including the one proposed by Lynch. I argue that none of the solutions discussed in the paper are satisfactory. (shrink)