I articulate the challenge disagreement poses for epistemic contextualism, and then discuss several possible replies on behalf of the contextualist.

Every known religious or explicitly irreligious outlook is contested by large contingents of informed and reasonable people. Many philosophers have argued that reflection on this fact should lead us to abandon confident religious or irreligious belief and to embrace religious skepticism. John Pittard critically assesses the case for such disagreement-motivated religious skepticism. While the book focuses on religious disagreement, it makes a number of significant contributions to the more general discussion of the rational significance of disagreement as (...) well. (shrink)

In this article we discuss what we call the deliberative division of epistemic labor. We present evidence that the human tendency to engage in motivated reasoning in defense of our beliefs can facilitate the occurrence of divisions of epistemic labor in deliberations among people who disagree. We further present evidence that these divisions of epistemic labor tend to promote beliefs that are better supported by the evidence. We show that promotion of these epistemic benefits stands in tension with what extant (...) theories in epistemology take rationality to require in cases of disagreement. We argue that the epistemic benefits that result from the deliberative division of epistemic labor can provide epistemic reason to maintain confidence in cases of disagreement. We then show that the deliberative division of epistemic labor constitutes a distinct kind of epistemic dependence. (shrink)

In recent years, several philosophers have argued that their discipline makes no progress (or not enough in comparison to the “hard sciences”). A key argument for this pessimistic position appeals to the purported fact that philosophers widely and systematically disagree on most major philosophical issues. In this paper, we take a step back from the debate about progress in philosophy specifically and consider the general question: How (if at all) would disagreement within a discipline undermine that discipline’s progress? We (...) reject two arguments from disagreement to a lack of progress, and spell out two accounts of progress on which progress is compatible with disagreements that persist or increase over time. However, we also argue that disagreement can undermine our ability to tell which developments are progressive (and to what degree). So, while disagreement can indeed be a threat to progress, the precise nature of the threat has not been appreciated. (shrink)

Consensus and disagreement play important roles in the practice, development, and dissemination of science. This raises a host of important philosophical questions. Some of these issues are conceptual: When, exactly, does a scientific agreement count as a consensus? And in what sense, if any, is disagreement the opposite of consensus? Other questions concern the role of consensus and disagreement in the development of science: For example, is consensus on central methodological issues and assumptions necessary for scientific work (...) to proceed normally? Yet other questions are epistemological: From a layperson’s perspective, does the presence of a scientific consensus ever indicate that the relevant theory is probably correct? If so, what are the conditions under which it does so? Relatedly, should scientists themselves also defer to the consensus position among their peers whenever such a consensus exists? Or should they instead evaluate consensus theories for themselves, or even actively aim to dissent against such theories? (shrink)

Metaethical absolutism is the view that moral concepts have non-relative satisfaction conditions that are constant across judges and their particular beliefs, attitudes, and cultural embedding. If it is correct, there is an important sense in which parties of moral disputes are concerned to get the same things right, such that their disputes can be settled by the facts. If it is not correct, as various forms of relativism and non-cognitivism imply, such coordination of concerns will be limited. The most influential (...) support for absolutism comes from an argument with two related premises. According to the first premise, moral thinking and moral discourse display a number of features that are characteristically found in paradigmatically absolutist domains, and only partly in uncontroversially non-absolutist domains. According to the second, the best way of making sense of these features is to assume that absolutism is correct. This paper defends the prospect of a non-ad hoc, non-absolutist, explanation of these "absolutist" features, thus calling into question the second premise. But instead of attempting to directly explain why the moral domain displays these features, it attends to how they are partially displayed by paradigmatically non-absolutists judgments about taste and likelihood. Based on this, it proposes independently motivated general accounts of attributions of agreement, disagreement, correctness and incorrectness that can explain both why absolutist domains display all "absolutist" features and why these non-absolutist domains display some. Based on these accounts, it provides preliminary reasons to think that these features of moral discourse can be given a non-absolutist explanation. (shrink)

One of Mill’s main arguments for free speech springs from taking disagreement as an epistemically valuable resource for fallible thinkers. Contemporary conciliationist treatments of disagreement spring from the same motivation, but end up seeing the epistemic implications of disagreement quite differently. Conciliationism also encounters complexities when transposed from the 2-person toy examples featured in the literature to the public disagreements among groups that give the issue much of its urgency. Group disagreements turn out to be in some (...) ways more powerful defeaters of rational belief, even when opposing groups are comparable in size and epistemic credentials. And conciliationism also shows us why determining the rational response to these disagreements can in certain cases (e.g. politics) be a particularly difficult and nuanced matter. (shrink)

Some disagreements concern our most fundamental beliefs, principles, values, or worldviews, such as those about the existence of God, society and politics, or the trustworthiness of science. These are ‘deep disagreements’. But what exactly are deep disagreements? This paper critically overviews theories of deep disagreement. It does three things. First, it explains the differences between deep and other kinds of disagreement, including peer, persistent, and widespread disagreement. Second, it critically overviews two mainstream theories of deep disagreement, (...) the Wittgensteinian account and the Fundamental Epistemic Principle account, before introducing a Hybrid account. Finally, it explores the notion that deep disagreements can be deeper than others. (shrink)

Responding rationally to the information that others disagree with one’s beliefs requires assessing the epistemic credentials of the opposing beliefs. Conciliatory accounts of disagreement flow in part from holding that these assessments must be independent from one’s own initial reasoning on the disputed matter. I argue that this claim, properly understood, does not have the untoward consequences some have worried about. Moreover, some of the difficulties it does engender must be faced by many less conciliatory accounts of disagreement.

This chapter covers contemporary work on disagreement, detailing both the conceptual and normative issues in play in the debates in mainstream analytic epistemology, and how these relate to religious diversity and disagreement. §1 examines several sorts of disagreement, and considers several epistemological issues: in particular, what range of attitudes a body of evidence can support, how to understand higher-order evidence, and who counts as an epistemic “peer”. §2 considers how these questions surface when considering disagreements over religion, (...) including debates over the nature of evidence and truth in religion, epistemic humility, concerns about irrelevant influences and about divine hiddenness, and arguments over exclusivism, inclusivism, and pluralism. Finally, §3 summarizes the contributors’ essays in this volume. (shrink)

Disagreement is common: even informed, intelligent, and generally reasonable people often come to different conclusions when confronted with what seems to be the same evidence. Can the competing conclusions be reasonable? If not, what can we reasonably think about the situation? This volume examines the epistemology of disagreement. Philosophical questions about disagreement arise in various areas, notably politics, ethics, aesthetics, and the philosophy of religion: but this will be the first book focusing on the general epistemic issues (...) arising from informed disagreement. Ten leading philosophers offer specially written essays which together will offer a starting-point for future work on this topic. (shrink)

In constructing semantic theories of normative and evaluative terms, philosophers have commonly deployed a certain type of disagreement -based argument. The premise of the argument observes the possibility of genuine disagreement between users of a certain normative or evaluative term, while the conclusion of the argument is that, however differently those speakers employ the term, they must mean the same thing by it. After all, if they did not, then they would not really disagree. We argue that in (...) many of the cases in which this argument is deployed, the conclusion not only fails to follow from the premises, but is very likely false. Disagreements between speakers who do not mean the same things by their words are common, genuine, and not easily distinguished from ordinary disagreements over the truth of literally expressed content. We make this case by developing the notion of a metalinguistic negotiation, an exchange in which speakers tacitly negotiate the proper deployment of some linguistic expression in a context. Metalinguistic negotiations express disagreements over information that is conveyed pragmatically and about what concepts should be deployed in the context at hand. We argue that neither of these features poses any obstacle to metalinguistic negotiations serving to express genuine, substantive disagreements that can be well worth engaging in. Contrary to what has been widely assumed in the literature, many normative and evaluative disputes—among ordinary speakers and even among philosophers themselves—may be of exactly this type, a conclusion with important consequences for both the subject matter and the methodology of metanormative theory. (shrink)

Disagreement is common: even informed, intelligent, and generally reasonable people often come to different conclusions when confronted with what seems to be the same evidence. Can the competing conclusions be reasonable? If not, what can we reasonably think about the situation? This volume examines the epistemology of disagreement. Philosophical questions about disagreement arise in various areas, notably politics, ethics, aesthetics, and the philosophy of religion: but this will be the first book focusing on the general epistemic issues (...) arising from informed disagreement. Ten leading philosophers offer specially written essays which together will offer a starting-point for future work on this topic. (shrink)

This paper explores the application of hinge epistemology to deep disagreement. Hinge epistemology holds that there is a class of commitments—hinge commitments—which play a fundamental role in the structure of belief and rational evaluation: they are the most basic general ‘presuppositions’ of our world views which make it possible for us to evaluate certain beliefs or doubts as rational. Deep disagreements seem to crucially involve disagreements over such fundamental commitments. In this paper, I consider pessimism about deep disagreement, (...) the thesis that such disagreements are rationally irresolvable, and ask whether the Wittgensteinian account of deep disagreement—according to which such disagreements are disagreements over hinge commitments—provides adequate support for pessimism. I argue that the answer to this question depends on what hinge commitments are and what our epistemic relation to them is supposed to be. I argue for two core claims. First, that non-epistemic theories of hinge commitments provide adequate support for pessimism. Nevertheless, such theories have highly implausible consequences in the context of deep disagreement. Secondly, at least one epistemic theory of hinge commitments, the entitlement theory, permits optimism about such disagreements. As such, while hinge epistemology is mainly pessimistic about deep disagreement, it doesn’t have to be. (shrink)

Hinge epistemology has to dispel the worry that disagreeing over hinges is rationally inert. Building on a companion piece (Coliva and Palmira 2020), this paper offers a constitutivist solution to the problem of rational inertia by maintaining that a Humean sceptic and a hinge epistemologist disagree over the correct explication of the concept of epistemic rationality. The paper explores the implications of such a solution. First, it clarifies in what sense a disagreement over hinges would be a conceptual (...) class='Hi'>disagreement. Secondly, it uses considerations about the (alleged) rational inertia of hinge disagreement to offer a test whereby to demarcate genuine hinges from merely entrenched beliefs. Thirdly, it offers a response to the challenge of explaining why we have reason to engage in the epistemic practices that hinges are constitutive of in the first place. Fourthly, it argues that the constitutivist approach to hinge disagreement does not result in a relativist view. (shrink)

The fact of moral disagreement when conjoined with Conciliationism, an independently attractive view about the epistemic significance disagreement, seems to entail moral skepticism. This worries those who like Conciliationism, the independently attractive view, but dislike moral skepticism. Others, equally inclined against moral skepticism, think this is a reductio of Conciliationism. I argue that they are both wrong. There is no reductio and nothing to worry about.

What is the epistemological significance of deep disagreement? Part I explored the nature of deep disagreement, while Part II considers its epistemological significance. It focuses on two core problems: the incommensurability and the rational resolvability problems. We critically survey key responses to these challenges, before raising worries for a variety of responses to them, including skeptical, relativist, and absolutist responses to the incommensurability problem, and to certain steadfast and conciliatory responses to the rational resolvability problem. We then pivot (...) to the ethical and political dimensions of deep disagreement. We focus on whether an unwillingness to engage with positions one considers to be immoral or repugnant might be good, and conclude with some reflections on the moral risks of engagement. (shrink)

Disagreements that resist rational resolution, often termed “deep disagreements”, have been the focus of much work in epistemology and informal logic. In this paper, I argue that they also deserve the attention of philosophers of mathematics. I link the question of whether there can be deep disagreements in mathematics to a more familiar debate over whether there can be revolutions in mathematics. I propose an affirmative answer to both questions, using the controversy over Shinichi Mochizuki’s work on the abc conjecture (...) as a potential example of both phenomena. I conclude by investigating the prospects for the resolution of mathematical deep disagreements in virtue-theoretic approaches to informal logic and mathematical practice. (shrink)

Conciliatory views about disagreement with one’s epistemic peers lead to a somewhat troubling skeptical conclusion: that often, when we know others disagree, we ought to be (perhaps much) less sure of our beliefs than we typically are. One might attempt to extend this skeptical conclusion by arguing that disagreement with merely possible epistemic agents should be epistemically significant to the same degree as disagreement with actual agents, and that, since for any belief we have, it is possible (...) that someone should disagree in the appropriate way, we ought to be much less sure of all of our beliefs than we typically are. In this paper, I identify what I take to be the main motivation for thinking that actual disagreement is epistemically significant and argue that it does not also motivate the epistemic significance of merely possible disagreement. (shrink)

I investigate the implication of the truth-relativist’s alleged ‘ faultless disagreements’ for issues in the epistemology of disagreement. A conclusion I draw is that the type of disagreement the truth-relativist claims to preserve fails in principle to be epistemically significant in the way we should expect disagreements to be in social-epistemic practice. In particular, the fact of faultless disagreement fails to ever play the epistemically significant role of making doxastic revision rationally required for either party in a (...) disagreement. That the truth-relativists’ disagreements over centred content fail to play this epistemically significant role that disagreements characteristically play in social epistemology should leave us sceptical that disagreement is what the truth-relativist has actually preserved. (shrink)

How much should your confidence in your beliefs be shaken when you learn that others – perhaps 'epistemic peers' who seem as well-qualified as you are – hold beliefs contrary to yours? This article describes motivations that push different philosophers towards opposite answers to this question. It identifies a key theoretical principle that divides current writers on the epistemology of disagreement. It then examines arguments bearing on that principle, and on the wider issue. It ends by describing some outstanding (...) questions that thinking about this issue raises. (shrink)

In discussions of religious disagreement, some epistemologists have suggested that religious disagreement is distinctive. More specifically, they have argued that religious disagreement has certain features which make it possible for theists to resist conciliatory arguments that they must adjust their religious beliefs in response to finding that peers disagree with them. I consider what I take to be the two most prominent features which are claimed to make religious disagreement distinct: religious evidence and evaluative standards in (...) religious contexts. I argue that these two features fail to distinguish religious disagreement in the ways they have been taken to. However, I show that the view that religious disagreement is not a unique form of disagreement makes religious disagreement less, rather than more, worrisome to the theist who would prefer to rationally remain steadfast in her religious beliefs. (shrink)

In the recent debate about the semantics of perspectival expressions, disagreement has played a crucial role. In a nutshell, what I call “the challenge from disagreement” is the objection that certain views on the market cannot account for the intuition of disagreement present in ordinary exchanges involving perspectival expressions like “Licorice is tasty./no, it’s not.” Various contextualist answers to this challenge have been proposed, and this has led to a proliferation of notions of disagreement. It is (...) now accepted in the debate that there are many notions of disagreement and that the search for a common, basic notion is misguided. In this paper I attempt to find such a basic notion underneath this diversity. The main aim of the paper is to motivate, forge and defend a notion of “minimal disagreement” that has beneficial effects for the debate over the semantics of perspectival expressions. (shrink)

A specific issue for argumentation theory is whether information and communication technologies play any role in governing argument — that is, as parties engage in practical activities across space and time via ICTs, does technology matter for the interplay of argumentative content and process in managing disagreement? The case made here is that technologies do matter because they are not merely conduits of communication but have a role in the pragmatics of communication and argumentation. In particular, ICTs should be (...) recognized as communication-information services that are delegated degrees of responsibility for managing disagreements arising from practical activities. These services are organized around practical theories for designing disagreement space. However, recognizing this relationship between argument and technology requires accounting for procedures, techniques, or rules and speech acts that are not argumentative propositions in any strict sense but that are consequential for what becomes argumentation in any setting. An account about designing disagreement space, grounded in Jackson and Jacobs’s theory of Disagreement Management, is put forward to address these issues while more generally contributing to understanding argument in context. (shrink)

This Element examines what we can learn from religious disagreement, focusing on disagreement with possible selves and former selves, the epistemic significance of religious agreement, the problem of disagreements between religious experts, and the significance of philosophy of religion. Helen De Cruz shows how religious beliefs of others constitute significant higher-order evidence. At the same time, she advises that we should not necessarily become agnostic about all religious matters, because our cognitive background colors the way we evaluate evidence. (...) This allows us to maintain religious beliefs in many cases, while nevertheless taking the religious beliefs of others seriously. (shrink)

Religious disagreement is an emerging topic of interest in social epistemology. Little is known about how philosophers react to religious disagreements in a professional context, or how they think one should respond to disagreement. This paper presents results of an empirical study on religious disagreement among philosophers. Results indicate that personal religious beliefs, philosophical training, and recent changes in religious outlook have a significant impact on philosophers' assessments of religious disagreement. They regard peer disagreement about (...) religion as common, and most surveyed participants assume one should accord weight to the other's opinion. Theists and agnostics are less likely to assume they are in a better epistemic position than their interlocutors about religious questions compared with atheists, but this pattern only holds for participants who are not philosophers of religion. Continental philosophers think religious beliefs are more like preferences than analytic philosophers, who regard religious beliefs as fact-like. (shrink)

The paper confronts the disagreement argument for relativism about matters of taste, defending a specific form of contextualism. It is first considered whether the disagreement data might manifest an inviariantist attitude speakers pre-reflectively have. Semantic and ontological enlightenment should then make the impressions of disagreement vanish, or at least leave them as lingering ineffectual Müller-Lyer-like illusions; but it is granted to relativists that this does not fully happen. López de Sa’s appeal to presuppositions of commonality and Sundell’s (...) appeal to metalinguistic disagreement are discussed, and it is argued that, although they help to clarify the issues, they do not fully explain why such impressions remain under enlightenment. To do it, the paper develops a suggestion that other writers have made, that the lingering impression of disagreement is a consequence of a practical conflict, appealing to dispositions to practical coordination that come together with presuppositions of commonality in axiological matters. (shrink)

I argue for the possibility of substantive aesthetic disagreements in which both parties speak truly. The possibility of such disputes undermines an argument mobilized by relativists such as Lasersohn (Linguist Philos 28:643–686, 2005) and MacFarlane (Philos Stud 132:17–31, 2007) against contextualism about aesthetic terminology. In describing the facts of aesthetic disagreement, I distinguish between the intuition of dispute on the one hand and the felicity of denial on the other. Considered separately, neither of those phenomena requires that there be (...) a single proposition asserted by one party to an aesthetic dispute and denied by the other. I suggest instead that many such disputes be analyzed as disputes over the selection or appropriateness of a contextually salient aesthetic standard. (shrink)

When speakers utter conflicting moral sentences, it seems clear that they disagree. It has often been suggested that the fact that the speakers disagree gives us evidence for a claim about the semantics of the sentences they are uttering. Specifically, it has been suggested that the existence of the disagreement gives us reason to infer that there must be an incompatibility between the contents of these sentences. This inference then plays a key role in a now-standard argument against certain (...) theories in moral semantics. In this paper, we introduce new evidence that bears on this debate. We show that there are moral conflict cases in which people are inclined to say both that the two speakers disagree and that it is not the case at least one of them must be saying something incorrect. We then explore how we might understand such disagreements. As a proof of concept, we sketch an account of the concept of disagreement and an independently motivated theory of moral semantics which, together, explain the possibility of such cases. (shrink)

People disagree frequently, about both objective and subjective matters. But while at least one party must be wrong in a disagreement about objective matters, it seems that both parties can be right when it comes to subjective ones: it seems that there can be faultless disagreements. But how is this possible? How can people disagree with one another if they are both right? And why should they? In recent years, a number of philosophers and linguists have argued that we (...) must become relativists about truth to understand faultless disagreements. This book shows that we can dispense with relativism. It combines a more standard semantics with a novel pragmatic theory to develop a superior approach. The book discusses both classic and recent literature in philosophy and linguistics. It provides a general introduction to the debate about the semantics and pragmatics of perspectival expressions, as well as an original contribution to the contemporary discussion. (shrink)

Epistemological questions about the significance of disagreement have advanced in concert with broader developments in social epistemology concerning testimony, the nature of expertise and epistemic authority, the role of institutions, group belief, and epistemic injustice (among others). During this period, related issues in the epistemology of religion have reemerged as worthy of new consideration, and available to be situated with new conceptual tools. This volume explores many of the issues at the intersection of the epistemology of disagreement and (...) religious epistemology: in particular, how to think carefully about religious diversity and disagreement, balancing epistemic humility with personal conviction, the place of religious belief in our social lives, and how best to think about truths concerning religion. (shrink)

Religious communities often discourage disagreement with religious authorities, on the grounds that allowing it would be epistemically detrimental. I argue that this attitude is mistaken, because any social position in a community—including religious authority—comes with epistemic advantages as well as epistemic limitations. I argue that religious communities stand to benefit epistemically by engaging in disagreement with people occupying other social positions. I focus on those at the community’s margins and argue that religious marginalization is apt to yield religiously (...) important insights; so their disagreement with religious authorities should be encouraged. (shrink)

Deep disagreements are disagreements wherein the dialectical conditions for fruitful argumentative exchange do not obtain. One view from within these disagreements is that the other side has been duped or is so deeply ignorant of and complacent with some illusion, there is no hope for exchange. The Dark Enlightenment's critique of liberal democracy and progressive politics (which gave rise to the alt‐right movement) proceeds on this premise, calling their critical philosophy ‘the red pill’ and terming the opposition's program ‘the Cathedral’. (...) Despite the depth of their disagreement with progressives, there is evidence for an optimistic program of critical dialogue in this instance of deep disagreement. (shrink)

I argue that the skeptical force of a disagreement is mitigated to the extent that it is fundamental, where a fundamental disagreement is one that is driven by differences in epistemic starting points. My argument has three steps. First, I argue that proponents of conciliatory policies have good reason to affirm a view that I call “instrumentalism,” a view that commends treating our doxastic inclinations like instrumental readouts. Second, I show that instrumentalism supplies a basis for demanding conciliatory (...) requirements in superficial disagreements but not in fundamental disagreements. Third, I argue that the frequently invoked “independence” principle, which arguably would require significant conciliation in fundamental disputes, is unmotivated in light of the explanatory power of instrumentalism. The most plausible conciliatory view, then, is a weak conciliationism that features instrumentalism rather than independence as the central principle, and that therefore gives us a principled basis for thinking that fundamental disagreements should occasion less doxastic revision than shallow disagreements. (shrink)

Relativism and contextualism are the most popular accounts of faultless disagreement, but Crispin Wright once argued for an account I call divergentism. According to divergentism, parties who possess all relevant information and use the same standards of assessment in the same context of utterance can disagree about the same proposition without either party being in epistemic fault, yet only one of them is right. This view is an alternative to relativism, indexical contextualism, and nonindexical contextualism, and has advantages over (...) those views. Wright eventually abandoned this view in favor of relativism for reasons related to a conciliationist view of disagreement between epistemic peers. I argue that he gave up on divergentism too soon. (shrink)

This paper defends the view that, in certain actual circumstances that aren’t uncommon for educated westerners, an awareness of the facts of religious disagreement doesn’t make theistic belief irrational. The first section makes some general remarks about when discovering disagreement (on any topic) makes it rational to give up your beliefs: it discusses the two main possible outcomes of disagreement (i.e., defeat of one’s disputed belief and demotion of one’s disputant), the main kinds of evidence that are (...) relevant to demoting one’s disputant, and the kinds of epistemic assessment involved in demoting a disputant. The second section argues that in cases of disagreement about theism, the theist’s evidence for theism and for the reliability of her theistic belief is often strong enough to support steadfastness in the face of disagreement. The third section argues that the theist’s evidence for the reliability of her disputant’s atheistic beliefs is often weak enough to allow her to rationally demote her atheist interlocutor and it explains how this demotion can occur in a sensible and appropriate way. The final section focuses on theists whose disagreement-based doubts about theism persist, despite the defenses offered on behalf of theism against such doubts. It concludes that these persistent doubts could in some cases result in defeaters for theistic belief, even if the doubts are irrational, but that the gift of faith can compensate for this. (shrink)

This paper explores some alternative accounts of doxastic disagreement, and shows what problems each faces. It offers an account of doxastic disagreement that results from the incompatibility of the content of doxastic attitudes, even when that content’s truth is relativized. On the best definition possible, it is argued, neither non-indexical contextualism nor assessment-relativism have an advantage over contextualism. The conclusion is that conflicts that arise from the incompatibility (at the same world) of the content of given doxastic attitudes (...) cannot be accommodated by theoretical positions that allow for the compatibility (at the same world) of the content of different doxastic attitudes. (shrink)

Some disagreements concern our most fundamental beliefs, principles, values, or worldviews, such as those about the existence of God, society and politics, or the trustworthiness of science. These are ‘deep disagreements’. But what exactly are deep disagreements? This paper critically overviews theories of deep disagreement. It does three things. First, it explains the differences between deep and other kinds of disagreement, including peer, persistent, and widespread disagreement. Second, it critically overviews two mainstream theories of deep disagreement, (...) the Wittgensteinian account and the Fundamental Epistemic Principle account, before introducing a Hybrid account. Finally, it explores the notion that deep disagreements can be deeper than others. (shrink)

My aim in this paper is to develop and defend a novel answer to a question that has recently generated a considerable amount of controversy. The question concerns the normative significance of peer disagreement. Suppose that you and I have been exposed to the same evidence and arguments that bear on some proposition: there is no relevant consideration which is available to you but not to me, or vice versa. For the sake of concreteness, we might picture.

Introduction to the Synthese Special Issue on Disagreement in Science.

This paper addresses a largely neglected question in ongoing debates over disagreement: what is the relation, if any, between disagreements involving credences and disagreements involving outright beliefs? The first part of the paper offers some desiderata for an adequate account of credal and full disagreement. The second part of the paper argues that both phenomena can be subsumed under a schematic definition which goes as follows: A and B disagree if and only if the accuracy conditions of A's (...) doxastic attitude are such that, if they were fulfilled, this would ipso facto make B's doxastic attitude inaccurate, or vice-versa. (shrink)

Regardless of who you are or how you live your life, you disagree with millions of people on an enormous number of topics from politics, religion and morality to sport, culture and art. Unless you are delusional, you are aware that a great many of the people who disagree with you are just as smart and thoughtful as you are - in fact, you know that often they are smarter and more informed. But believing someone to be cleverer or more (...) knowledgeable about a particular topic usually won’t change your mind. Should it? This book is devoted to exploring this quandary - what should we do when we encounter disagreement, particularly when we believe someone is more of an authority on a subject than we are? The question is of enormous importance, both in the public arena and in our personal lives. Disagreement over marriages, beliefs, friendships and more causes immense personal strife. People with political power disagree about how to spend enormous amounts of money, about what laws to pass, or about wars to fight. If only we were better able to resolve our disagreements, we would probably save millions of lives and prevent millions of others from living in poverty. The first full-length text-book on this philosophical topic, Disagreement provides students with the tools they need to understand the burgeoning academic literature and its perspectives. Including case studies, sample questions and chapter summaries, this engaging and accessible book is the perfect starting point for students and anyone interested in thinking about the possibilities and problems of this fundamental philosophical debate. (shrink)

Disagreement is a hot topic in epistemology. A fast-growing literature centers around a dispute between the ‘steadfast’ view, on which one may maintain one’s beliefs even in the light of disagreement with epistemic peers who have all the same evidence, and the ‘conciliationist’ view, on which such disagreement requires a revision of attitudes. In this paper, however, I argue that there is less separating the main rivals in the debate about peer disagreement than is commonly thought. (...) The extreme versions of both views are clearly indefensible, while more moderate versions of the views converge on the idea that how much revision of belief is called for by an instance of peer disagreement varies from case to case. Those tempted by this diagnosis are sometimes pessimistic about the prospects for giving a unified account which clearly predicts when more or less extensive revisions will be called for. By contrast, in this paper I give an account that aspires to such unity and predictive power, centering on the notion of the net resilience of your estimate of your own reliability against your estimate of your interlocutor’s reliability. The view I present thus amounts to a new, moderate theory of how one should respond to disagreement. I argue that ultimately, when we weaken conciliationism and the steadfast view to account for exception cases and to make them adequately plausible, they end up converging on the moderate view I present. Much of the seeming disagreement about disagreement is, then, illusory. (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 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.

The discussion about deep disagreement has gained significant momentum in the last several years. This discussion often relies on the intuition that deep disagreement is, in some sense, rationally irresolvable. In this paper, I will provide a theory of rationally irresolvable disagreement. Such a theory is interesting in its own right, since it conflicts with the view that rational attitudes and procedures are paradigmatic tools for resolving disagreement. Moreover, I will suggest replacing discussions about deep (...) class='Hi'>disagreement with an analysis of rationally irresolvable disagreement, since this notion can be more clearly defined than deep disagreement and captures the basic intuitions underlying deep disagreement. I will first motivate this project by critically assessing the current debate about deep disagreement. I then detail the notions of rationality and resolvable disagreement which are crucial for a suitable theory of rationally irresolvable disagreement before sketching various instances of rationally irresolvable disagreement. Finally, I argue for replacing theories of deep disagreement with theories of rationally irresolvable disagreement, an approach that has significant advantages over existing theories of deep disagreement which focus on hinge propositions or fundamental epistemic principles. (shrink)

There has been a recent explosion of interest in the epistemology of disagreement. Much of the recent literature is concerned with a particular range of puzzle cases (discussed in the Cases section of my paper). Almost all of the papers that contribute to that recent literature make mention of questions about religious disagreement in ways that suggest that there are interesting connections between those puzzle cases and real life cases of religious disagreement. One important aim of my (...) paper is to cast doubt on that suggestion. More generally, the aim of my paper is to give a reasonably full account of the recent literature on the epistemology of disagreement, and then to give a serious discussion of some of the epistemological issues that are raised by real world religious disagreements. (shrink)

This paper develops a puzzle about non-merely-verbal disputes. At first sight, it would seem that a dispute over the truth of an utterance is not merely verbal only if there is a proposition that the parties to the dispute take the utterance under dispute to express, which one of the parties accepts and the other rejects. Yet, as I argue, it is extremely rare for ordinary disputes over an utterance’s truth to satisfy this condition, in which case non-merely verbal disputes (...) are extremely rare. After examining various responses to the puzzle, I outline a solution using the framework of truthmaker semantics. (shrink)