In the epistemology of testimony it is often assumed that audiences are able to reliably recover asserted contents. In the philosophy of language this claim is contentious. This paper outlines one problem concerning the recovery of asserted contents, and argues that it prevents audiences from gaining testimonial knowledge in a range of cases. The recovery problem, in essence, is simply that due to the collective epistemic limitations of the speaker and audience speakers will, in certain cases, be insensitive to (...) the ways in which they may be misinterpreted. As a result audiences’ beliefs will often fail the safety and sensitivity conditions on knowledge. Once the problem has been outlined and distinguished from several related problems in the philosophy of language and the epistemology of testimony, a series of responses are considered. The first response holds that audiences possess defeaters in recovery problem cases, and thus wouldn’t form beliefs. The second response holds that the beliefs audiences form are very coarse grained, meaning they are not very vulnerable to failures of safety and sensitivity. The final response holds that the objects of speaker meaning are not propositional. All three responses are found to be unsatisfactory. (shrink)

According to some pessimists, trusting moral testimony is an action in which the agent does not think about moral questions by herself, and thus it is unacceptable. I argue for optimism by giving some reasons to display moral agents are still depending upon their own in many cases of moral testimony. Specifically, I argue that testimony is a form of social cooperation: the division of epistemic labor. My strategy is as follows: First, I give a principle to (...) show when an agent could reasonably trust moral testimony. Specifically, an agent could reasonably accept the testimony, when she can reasonably expect she would make the same or similar judgment with the testifier. Second, I show how moral testimony could work as a form of social cooperation. Given the principle of the same judgment, it is reasonable for the agent to form a moral belief and act with moral testimony. And it provides us higher efficiency in moral knowledge and shows respect for each moral agent. After that, I provide explanations for the problem of moral disagreement and moral understanding with such a principle for moral testimony. Finally, I respond to some possible objections and give some clarifications of my argument. (shrink)

Speakers offer testimony. They also hedge. This essay offers an account of how hedging makes a difference to testimony. Two components of testimony are considered: how testimony warrants a hearer's attitude, and how testimony changes a speaker's responsibilities. Starting with a norm-based approach to testimony where hearer's beliefs are prima facie warranted because of social norms and speakers acquire responsibility from these same norms, I argue that hedging alters both components simultaneously. It changes which (...) attitudes a hearer is prima facie warranted in forming in response to testimony, and reduces how much responsibility a speaker undertakes in testifying. A consequence of this account is that speakers who hedge for strategic purposes deprive their hearers of warrant for stronger doxastic attitudes. (shrink)

Transmission views of testimony hold that a speaker's knowledge or justification can become the audience's knowledge or justification. We argue that transmission views are incompatible with the hypothesis that one's epistemic state, together with one's practical circumstances, determines what actions are rationally permissible for an agent. We argue that there are cases where, if the speaker's epistemic state were transmitted to the audience, then the audience would be warranted in acting in particular ways. Yet, the audience in these cases (...) is not so warranted, as their strength of justification does not come close to the speaker's. (shrink)

I outline what I call the ‘deniability problem’, explain why it is problematic, and identify the range of utterances to which it applies (using religious discourse as an example). The problem is as follows: To assign content to many utterances audiences must rely on their contextual knowledge. This generates a lot of scope for error. Thus, speakers are able to make assertions and deny responsibility for the proposition asserted, claiming that the audience made a mistake. I outline the problem (a (...) limited version of which Fricker 2012 discusses), before explaining why it is problematic. Firstly it blocks testimonial knowledge according to assurance views. Secondly it prevents epistemic buck passing (the importance of which is emphasized by Goldberg 2006 and McMyler 2013). Finally, it removes a key disincentive to dishonesty. The recent literature on context sensitivity (particularly Cappelen and Lepore 2004) seems to entail that the problem applies to a very wide range of utterances. I consider a series of responses which fail to provide a solution, but which help us narrow down the scope of the problem. (shrink)

Testimony is of epistemic and practical significance. It is of epistemic significance because majority of what we know and believe comes from being told. It is of practical significance because our agency can be undermined, bypassed, or overridden owing to systemic prejudices sustained by oppressive social or cultural practices and subsequently our routes to knowledge are either hindered or distorted. Things get more complicated when we introduce and examine how groups and other collectives testify and are recipients of (...) class='Hi'>testimony. For instance, group speakers are typically said to represent and reflect the view of the group they are speaking on behalf of. But sometimes because of these oppressive practices, a group speaker’s assertion may deprive or impair its members’ ability to perform certain actions through speech. This dissertation examines the intersection between testimony, collective phenomena, and epistemic harms. One aim is to argue for a view on the nature of testimony that can accommodate various ways collectives testify and are recipients of testimony. In particular, I argue and present a view of testimony as a norm-governed joint activity involving individual or collective participants that commit themselves to a common aim of collaboration. Another aim is to present an epistemology of testimony that tracks our ordinary testimonial practices. In this regard, I argue for a norm view where we have reason to believe what we’re told because of the rules or norms that govern our communicative exchanges. A final aim is to explore the mechanism by which collective speech ensues in an epistemic harm driven by social identity prejudices. I argue for a form of silencing that is distinctive of groups insofar as the silencing occurs because of group dynamics. I call the mechanism underlying this form of silencing “representational impairment”. This dissertation, I hope, will motivate and inspire others to pursue philosophical projects at these intersections and in this spirit, I end by offering suggestions on areas of further development and future direction. (shrink)

Jennifer Lackey ('Testimonial Knowledge and Transmission' The Philosophical Quarterly 1999) and Peter Graham ('Conveying Information, Synthese 2000, 'Transferring Knowledge' Nous 2000) offered counterexamples to show that a hearer can acquire knowledge that P from a speaker who asserts that P, but the speaker does not know that P. These examples suggest testimony can generate knowledge. The showpiece of Lackey's examples is the Schoolteacher case. This paper shows that Lackey's case does not undermine the orthodox view that testimony cannot (...) generate knowledge. This paper explains why Lackey's arguments to the contrary are ineffective for they misunderstand the intuitive rationale for the view that testimony cannot generate knowledge. This paper then elaborates on a version of the case from Graham's paper 'Conveying Information' (the Fossil case) that effectively shows that testimony can generate knowledge. This paper then provides a deeper informative explanation for how it is that testimony transfers knowledge, and why there should be cases where testimony generates knowledge. (shrink)

That testimony is one of the principle bases on which many people hold their religious beliefs is hard to dispute. Equally hard to dispute is that our world contains an array of mutually incompatible religious traditions each of which has been transmitted down the centuries chiefly by way of testimony. In light of this latter it is quite natural to think that there is something defective about holding religious beliefs primarily or solely on the basis of testimony (...) from a particular tradition. The present chapter takes up the question of what that defect consists in. I first consider whether religious diversity entails that a religious believer’s testimony-based beliefs are not formed in a suitably epistemically reliable manner even conditional upon the truth of her religion. After casting doubt on this thought I turn to look at the idea that testimony-based beliefs are subject to defeaters in light of awareness of religious diversity, and I suggest that many such beliefs are not obviously so. According to my diagnosis the problem, rather, is that believers who base their religious beliefs just on testimony will be very unlikely to have reflective (that is, second-order) knowledge even if they possess first-order knowledge, and I explain why this is a notable shortcoming. (shrink)

In this paper I defend the claim that testimony can serve as a basic source of knowledge of other people’s mental lives against the objection that testimonial knowledge presupposes knowledge of other people’s mental lives and therefore can’t be used to explain it.

This paper identifies two distinct dimensions of what might be called testimonial strength: first, in the case of testimony from more than one speaker, testimony can be said to be stronger to the extent that a greater proportion of the speakers give identical testimony; second, in both single-speaker and multi-speaker testimony, testimony can be said to the stronger to the extent that each speaker expresses greater conviction in the relevant proposition. These two notions of testimonial (...) strength have received scant attention in the philosophical literature so far, presumably because it has been thought that whatever lessons we learn from thinking about testimony as a binary phenomenon will apply mutatis mutandis to varying strengths of testimony. This paper shows that this will not work for either of the two aforementioned dimensions of testimonial strength, roughly because less testimony can provide more justification in a way that can only be explained by appealing to the (non-binary) strength of the testimony itself. The paper also argues that this result undermines some influential versions of non-reductionism about testimonial justification. (shrink)

This article examines the meaningful intervention that Gert-Jan Van der Heiden’s recent book, The Voice of Misery: A Continental Philosophy of Testimony, makes in the developing field of the philosophy of testimony. I argue that this intervention is accomplished through a phenomenological investigation into the nature of the testimonial object and of the demand that it makes upon one who bears witness. In taking such an approach, I argue, Van der Heiden initiates an ontological turn in the field (...) of testimonial theory, shifting the conversation away from a debate about the conditions in which belief in testimony is justified – a debate that has in many ways defined the field for philosophers in the Anglo-American tradition. I suggest that Van der Heiden’s account is helpful in demonstrating that, in many cases, doing justice to a testimonial object requires an epistemic-ethical attitude other than belief. The article concludes by developing a few questions for Van der Heiden based on my interpretation of his project, including to what extent his phenomenology of testimony can account for how often our receptivity to testimony depends on the default trust that we have in others by virtue of our fundamental immersion in social life. (shrink)

This article discusses the following question: what epistemic relation must audiences bear to the content of assertions in order to gain testimonial knowledge? There is a brief discussion of why this issue is of importance, followed by two counterexamples to the most intuitive answer: that in order for an audience to gain testimonial knowledge that p they must know that the speaker has asserted p. It is then suggested that the argument generalises and can be made to work on different (...) sets of assumptions about the conditions for knowledge, and the conditions under which a proposition is asserted. (shrink)

To verify the occurrence of a singular instance of testimonial injustice three facts must be established. The first is whether the hearer in fact has an identity prejudice of which she may or may not be aware; the second is whether that prejudice was in fact the cause of the unjustified credibility deficit; and the third is whether there was in fact a credibility deficit in the testimonial exchange. These three elements constitute the facts of the matter of testimonial injustice. (...) In this essay we argue that none of these facts can be established with any degree of confidence, and therefore that testimonial injustice is an undetectable phenomenon in singular instances. Our intention is not to undermine the idea of testimonial injustice, but rather to set limits to what can be justifiably asserted about it. According to our argument, although there are insufficient reasons to identify individual acts of testimonial injustice, it is possible to recognize recurrent patterns of epistemic responses to speakers who belong to specific social groups. General testimonial injustice can thus be characterized as a behavioral tendency of a prejudiced hearer. (shrink)

Epistemologists typically assume that the acquisition of knowledge from testimony is not threatened at the stage at which audiences interpret what proposition a speaker has asserted. Attention is instead typically paid to the epistemic status of a belief formed on the basis of testimony that it is assumed has the same content as the speaker’s assertion. Andrew Peet has pioneered an account of how linguistic context sensitivity can threaten the assumption. His account locates the threat in contexts in (...) which an audience’s evidence under-determines which proposition a speaker is asserting. I argue that Peet’s epistemic uncertainty account of the threat is mistaken and I propose an alternative. The alternative locates the threat in contexts that provide factors that give audiences a mistaken psychological certainty or confidence that a speaker has asserted a proposition she has not. (shrink)

Jennifer Lackey’s case “Creationist Teacher,” in which students acquire knowledge of evolutionary theory from a teacher who does not herself believe the theory, has been discussed widely as a counterexample to so-called transmission theories of testimonial knowledge and justification. The case purports to show that a speaker need not herself have knowledge or justification in order to enable listeners to acquire knowledge or justification from her assertion. The original case has been criticized on the ground that it does not really (...) refute the transmission theory, because there is still somebody in a chain of testifiers—the person from whom the creationist teacher acquired what she testifies—who knows the truth of the testified statements. In this paper, we provide a kind of pattern for generating counterexample cases, one that avoids objections discussed by Peter Graham and others in relation to such cases. (shrink)

The ability to interact in a natural language profoundly changes devices’ interfaces and potential applications of speaking technologies. Concurrently, this phenomenon challenges our mainstream theories of knowledge, such as how to analyze linguistic outputs of devices under existing anthropocentric theoretical assumptions. In section 1, I present the topic of machines that speak, connecting between Descartes and Generative AI. In section 2, I argue that accepted testimonial theories of knowledge and justification commonly reject the possibility that a speaking technological artifact can (...) give testimony. In section 3, I identify three assumptions underlying the view that rejects conversational AIs – AI-based technologies that converse, as testifiers: conversational AIs (1) lack intentions, (2) cannot be normatively assessed, and (3) cannot constitute an object in trust relations, while humans can. In section 4, I propose the concept ‘AI-testimony’ for analyzing outputs of conversational AIs, suggesting three conditions for technologies to deliver AI-testimony: (1) content is propositional, (2) generated and delivered with no other human directly involved, (3) the output is perceived as phenomenologically similar to that of a human. I conclude that this concept overcomes the limitations of the anthropocentric concept of testimony, opening future directions of research without associating conversational AIs with human-like agency. (shrink)

Can we transmit understanding via testimony in more or less the same way in which we transmit knowledge? The standard view in social epistemology has a straightforward answer: no, we cannot. Three arguments supporting the standard view have been formulated so far. The first appeals to the claim that gaining understanding requires a greater cognitive effort than acquiring testimonial knowledge does. The second appeals to a certain type of epistemic trust that is supposedly characteristic of knowledge transmission (and maybe (...) of the transmission of epistemic goods in general) and that is allegedly incompatible with understanding. The third aims to show that there is a certain aspect of understanding (what epistemologists these days like to call “grasping”) that cannot be passed on to another person via testimony alone. In this article, I show that all of these arguments can be resisted. Thus, there seem to be no compelling reasons to embrace the standard view. (shrink)

I argue, first, that testimony is likely a natural kind (where natural kinds are accurately described by the homoeostatic property cluster theory) and that if it is indeed a natural kind, it is likely necessarily reliable. I argue, second, that the view of testimony as a natural kind and as necessarily reliable grounds a novel, naturalist global reductionism about testimonial justification and that this new reductionism is immune to a powerful objection to orthodox Humean global reductionism, the objection (...) from the too-narrow induction base. (shrink)

The value of testimony as a source of knowledge has been a subject of epistemological debates. The "trust theory of testimony" suggests that human testimony is based on an affective relationship supported by social norms. However, the advent of generative artificial intelligence challenges our understanding of genuine testimony. The concept of "quasi-testimony" seeks to characterize utterances produced by non-human entities that mimic testimony but lack certain fundamental attributes. This article analyzes these issues in depth, (...) exploring philosophical perspectives on testimony and the implications of conversational AI technologies on our epistemic practices. (shrink)

Can we gain understanding from testifiers who themselves fail to understand? At first glance, this looks counterintuitive. How could a hearer who has no understanding or very poor understanding of a certain subject matter non-accidentally extract items of information relevant to understanding from a speaker’s testimony if the speaker does not understand what she is talking about? This paper shows that, when there are theories or representational devices working as mediators, speakers can intentionally generate understanding in their hearers by (...) engaging in relevant speech acts without understanding the topic of these speech acts themselves. More specifically, I argue that testifiers can intentionally elicit understanding of empirical phenomena in their hearers even if they themselves lack such understanding – granted that they properly understood the epistemic mediators involved. (shrink)

There is an emerging skepticism about the existence of testimonial knowledge-how :387–404, 2010; Poston in Noûs 50:865–878, 2016; Carter and Pritchard in Philos Phenomenol Res 91:181–199, 2015a). This is unsurprising since a number of influential approaches to knowledge-how struggle to accommodate testimonial knowledge-how. Nonetheless, this scepticism is misguided. This paper establishes that there are cases of easy testimonial knowledge-how. It is structured as follows: first, a case is presented in which an agent acquires knowledge-how simply by accepting a speaker’s (...) class='Hi'>testimony. Second, it is argued that this knowledge-how is genuinely testimonial. Next, Poston’s arguments against easy testimonial knowledge-how are considered and rejected. The implications of the argument differ for intellectualists and anti-intellectualists about knowledge-how. The intellectualist must reject widespread assumptions about the communicative preconditions for the acquisition of testimonial knowledge. The anti-intellectualist must find a way of accommodating the dependence of knowledge-how on speaker reliability. It is not clear how this can be done. (shrink)

According to telling based views of testimony (TBVs), B has reason to believe that p when A tells B that p because A thereby takes public responsibility for B's subsequent belief that p. Andrew Peet presents a new argument against TBVs. He argues that insofar as A uses context-sensitive expressions to express p, A doesn't take public responsibility for B's belief that p. Since context-sensitivity is widespread, the kind of reason TBVs say we have to believe what we're told, (...) is not widespread. Peet doesn't identify any problem with his own argument though he does attempt to limit its sceptical potential by identifying special contexts in which TBVs stand a chance of success. A more general defence of TBVs can be provided by showing Peet's argument to be unsound. I argue that Peet's argument is unsound because it requires us to wrongly suppose that speakers do far less labour than their audiences in context-sensitive linguistic communication. I aim to show why—in the context of the epistemology of testimony and the philosophy of language—it's important to recognize the labour that speakers can do, and so can can be held responsible for not doing, in episodes of context-sensitive linguistic communication. (shrink)

Here are three (rough) theories of testimonial knowledge. (1) Speaker's knowledge: a hearer acquires the knowledge that P though testimony because of the speaker's knowledge that P--testimony "transfers" knowledge. This is the popular view, defended by Elizabeth Fricker and Paul Faulkner, among others. (2) Speaker's assertion: a hearer acquires the knowledge that P through testimony because the speaker's assertion that P is reliable that P in the right way (safe or sensitive). That's Jennifer Lackey's view. (3) Speaker's (...) comprehension state: a hearer acquired the knowledge that P through comprehending as of a speaker's assertion that P where the comprehension state is reliable in the right way (safe). That's my view. Lackey would reject such a view for it allows cases of testimonial knowledge that P from a speaker who did not assert that P. But Faulkner might reject Lackey's view on the grounds that it allows cases of testimonial knowledge that P from a speaker who did not know that P. Lackey replies that her account is better unified. But for the same reason, my account is even better unified. This paper runs through a series of cases and shows that my account--the Unified Account--is superior to the others. (shrink)

Relying on aesthetic testimony seems problematic. For instance, it seems problematic for me to simply believe or assert that The Velvet Underground's debut album The Velvet Underground and Nico (1964) is amazing solely because you have told me so, even though I know you to be an honest and competent music critic. But why? After all, there do not seem to be similar reservations regarding testimony from many other domains. In this paper, I will argue that relying on (...) aesthetic testimony seems problematic because we are attached to an ideal of aesthetic authenticity and feel that living up to this ideal is anathema to simply relying on aesthetic testimony. (shrink)

It is generally acknowledged that testifiers can play a central role in the production of knowledge and other valuable epistemic states in others. But does such a role warrant any form of epistemic credit and is an agent more successful qua epistemic agent insofar as she is a successful testifier? I here propose an affirmative answer to both questions. The core of the current paper consists in a sustained defence of this proposal against a series of objections. I further argue (...) that the proposal allows us to recognize an important additional epistemic harm that arises in cases of testimonial injustice beyond those described by Miranda Fricker. Finally, I conclude by distinguishing between four kinds of credit - distinctions that allow us to avoid inappropriately attributing epistemic credit in problematic cases. If the current proposal is correct, our understanding of successful epistemic agents needs to be significantly modified in order to take into account their role in producing epistemically valuable states in others. (shrink)

I present a puzzle – the “puzzle of aesthetic testimony” – along with a solution to it that appeals to the impossibility of testimonial understanding. I'll criticize this solution by defending the possibility of testimonial understanding, including testimonial aesthetic understanding.

It is has been argued that there is a problem with moral testimony: testimony is deferential, and basing judgments and actions on deferentially acquired knowledge prevents them from having moral worth. What morality perhaps requires of us, then, is that we understand why a proposition is true, but this is something that cannot be acquired through testimony. I argue here that testimony can be both deferential as well as cooperative, and that one can acquire moral understanding (...) through cooperative testimony. The problem of moral testimony is thus not a problem with testimony generally, but a problem of deferential testimony specifically. (shrink)

It is sometimes claimed that faith is a virtue. To what extent faith is a virtue depends on what faith is. One construal of faith, which has been popular in both recent and historical work on faith, is that faith is a matter of taking oneself to have been spoken to by God and of trusting this purported divine testimony. In this paper, I argue that when faith is understood in this way, for faith to be virtuous then it (...) must be accompanied by intellectual humility. I defend this view by showing how someone ought to respond to purported divine testimony if her faith is to be intellectually humble, and how, if it fails in this respect, it will instead be accompanied by the vices of either servility or arrogance. (shrink)

I argue for the Cooperative Warrant Thesis (CWT), according to which the determinants of testimonial contents in communication are given by the practical requirements of cooperative action. This thesis distances itself from conventionalist views, according to which testimony must be strictly bounded by conventions of speech. CWT proves explanatorily better than conventionalism on several accounts. It offers a principled and accurate criterion to distinguish between testimonial and non-testimonial communication. In being goal-sensitive, this criterion captures the role of weak and (...) robust cooperation in determining the contents to which speakers testify or fail to testify. And, finally, it yields a principled explanation of why testimony entails the epistemic commitments that distinguish it as an epistemic source. (shrink)

The problem of explaining how we acquire knowledge via testimony gives rise to a dilemma, according to which any theory must make testimonial knowledge either too hard or too easy, and therefore no adequate account of testimonial knowledge is possible. In recent work, John Greco offers a solution to the dilemma on behalf of anti-reductionism that appeals to Edward Craig’s functionalist epistemology. It is argued that Greco’s solution is flawed, in that his functionalist account provides wrong verdicts of ordinary (...) cases of testimonial knowledge. In contrast, it is shown that both anti-reductionism and reductionism have the resources to solve the dilemma and provide the right verdicts in ordinary cases of testimonial knowledge without appealing to Greco’s functionalism. (shrink)

A natural view of testimony holds that a source's statements provide one with evidence about what the source believes, which in turn provides one with evidence about what is true. But some theorists have gone further and developed a broadly analogous view of memory. According to this view, which this essay calls the “diary model,” one's memory ordinarily serves as a means for one's present self to gain evidence about one's past judgments, and in turn about the truth. This (...) essay rejects the diary model's analogy between memory and testimony from one's former self, arguing first that memory and a diary differ with respect to their psychological roles, and second that this psychological difference underwrites important downstream epistemic differences. The resulting view stands opposed to prominent discussions of memory and testimony, which either, like the diary model, treat memory by analogy to what we naively wish to say about testimony, or which instead attempt to extend to testimony the epistemically preservative role of memory. (shrink)

This paper introduces and argues for the hypothesis that judgments of testimonial worth are central to our practice of normatively appraising speech. It is argued that judgments of testimonial worth are central both to the judgement that an agent has lied, and to the acceptance of testimony. The hypothesis that, in lying, an agent necessarily displays poor testimonial worth, is shown to resolve a new puzzle about lying, and the recalcitrant problem raised by the existence of bald faced lies, (...) and selfless assertions. It is then shown that the notion of testimonial worth allows us to capture the distinction between taking a speaker at their word, and treating them as a mere indicator of the truth in a way other theories fail to do. (shrink)

This paper argues for the general proper functionalist view that epistemic warrant consists in the normal functioning of the belief-forming process when the process has forming true beliefs reliably as an etiological function. Such a process is reliable in normal conditions when functioning normally. This paper applies this view to so-called testimony-based beliefs. It argues that when a hearer forms a comprehension-based belief that P (a belief based on taking another to have asserted that P) through the exercise of (...) a reliable competence to comprehend and filter assertive speech acts, then the hearer's belief is prima facie warranted. The paper discusses the psychology of comprehension, the function of assertion, and the evolution of filtering mechanisms, especially coherence checking. (shrink)

When you don’t believe a speaker’s testimony for reasons that call into question the speaker’s credibility, it seems that this is an insult against the speaker. There also appears to be moral reasons that count in favour of refraining from insulting someone. When taken together, these two plausible claims entail that we have a moral reason to refrain from insulting speakers with our lack of belief, and hence, sometimes, a moral reason to believe the testimony of speakers. Reasons (...) for belief arising from non-epistemic sources are controversial, and it’s often argued that it’s impossible to base a belief on non-epistemic reasons. However, I will show that even if it is possible to base a belief on non-epistemic reasons, in the case of testimonial insult, for many or most cases, the moral reasons for belief don’t need to be the basis of our doxastic response. This is because there are, in many or most cases, either sufficient epistemic reasons for belief, or sufficient moral reasons for action that guide our response to testimony. Reasons from testimonial insult, in many cases, simply lead to overdetermination. Even if there are such moral reasons for belief, they are therefore practically unnecessary in many cases. There are, though, some cases in which they play an important role in guiding belief. This perhaps surprising conclusion is one unexplored way to defend epistemic over pragmatic reasons for belief. (shrink)

This chapter explores two kinds of testimonial trust, what we call ‘evidential trust’ and ‘non-evidential trust’ with the aim of asking how testimonial trust could provide epistemic reasons for belief. We argue that neither evidential nor non-evidential trust can play a distinctive role in providing evidential reasons for belief, but we tentatively propose that non-evidential trust can in some circumstances provide a novel kind of epistemic reason for belief, a reason of epistemic facilitation. The chapter begins with an extensive discussion (...) of standard accounts of both kinds of trust and criticises especially the standard accounts of non-evidential trust. A new account of non-evidential trust is offered that avoids a number of difficulties that plague the standard accounts by rejecting what we call ‘attitude-liability assumptions’. (shrink)

This is the Introduction and Chapter 1.1 of the book ‘Scientific Testimony. Its roles in science and society’ (OUP 2022). The introduction contains a brief survey of the book’s chapters and main conclusions, which I hope will be useful to the curious ones.

I propose a new account of the limits of aesthetic testimony. One of this new account's main claims is that, among the kinds of aesthetic cognitive achievements, it is useful to distinguish aesthetic understanding. In particular, I suggest that the aesthetic understanding of X involves an understanding of why X is aesthetically valuable. In turn, aesthetic understanding is essentially connected to the deployment of aesthetic concepts. Given the fine-grained structure of some of these concepts, certain forms of testimony (...) are not adequate to acquire them. (shrink)

Domestic violence and abuse (DVA) are at last coming to be recognised as serious global public health problems. Nevertheless, many women with personal histories of DVA decline to disclose them to healthcare practitioners. In the health sciences, recent empirical work has identified many factors that impede DVA disclosure, known as barriers to disclosure. Drawing on recent work in social epistemology on testimonial silencing, we might wonder why so many people withhold their testimony and whether there is some kind of (...) epistemic injustice afoot here. In this paper, I offer some philosophical reflections on DVA disclosure in clinical contexts and the associated barriers to disclosure. I argue that women with personal histories of DVA are vulnerable to a certain form of testimonial injustice in clinical contexts, namely, testimonial smothering, and that this may help to explain why they withhold that testimony. It is my contention that this can help explain the low rates of DVA disclosure by patients to healthcare practitioners. (shrink)

The current debate over aesthetic testimony typically focuses on cases of doxastic repetition — where, when an agent, on receiving aesthetic testimony that p, acquires the belief that p without qualification. I suggest that we broaden the set of cases under consideration. I consider a number of cases of action from testimony, including reconsidering a disliked album based on testimony, and choosing an artistic educational institution from testimony. But this cannot simply be explained by supposing (...) that testimony is usable for action, but unusable for doxastic repetition. I consider a new asymmetry in the usability aesthetic testimony. Consider the following cases: we seem unwilling to accept somebody hanging a painting in their bedroom based merely on testimony, but entirely willing to accept hanging a painting in a museum based merely on testimony. The switch in intuitive acceptability seems to track, in some complicated way, the line between public life and private life. These new cases weigh against a number of standing theories of aesthetic testimony. I suggest that we look further afield, and that something like a sensibility theory, in the style of John McDowell and David Wiggins, will prove to be the best fit for our intuitions for the usability of aesthetic testimony. I propose the following explanation for the new asymmetry: we are willing to accept testimony about whether a work merits being found beautiful; but we are unwilling to accept testimony about whether something actually is beautiful. (shrink)

there seems to be some kind of asymmetry, at least in some cases, between moral testimony and non-moral testimony, between aesthetic testimony and non-aesthetic testimony, and between religious testimony and non-religious testimony. In these domains, at least in some cases, we object to deference, and for this reason expect people to form their beliefs on non-testimonial grounds, in a way that we do not object to deference in paradigm cases of testimonial knowledge. Our philosophical (...) puzzle is therefore: what explains these (apparent) asymmetries (or are they merely apparent)? My aim here is to criticize three accounts of these testimonial asymmetries and to suggest an alternative strategy for solving our puzzle. I’ll consider the idea that testimony cannot be a source of understanding (§2), the idea that testimony cannot be a source of acquaintance (§3), and the idea that testimonial belief is not conducive to moral virtue (§4). These accounts all explain the badness of testimonial belief, in the relevant cases, by appeal to its consequences for the believer—respectively, a lack of understanding, acquaintance, or moral virtue. I’ll conclude by suggesting a way forward (§5): we should try to understand the badness of testimonial belief, in the relevant cases, as deriving from its consequences for the believer’s society. (shrink)

Most philosophers believe that testimony is not a fundamental source of knowledge, but merely a way to transmit already existing knowledge. However, Jennifer Lackey has presented some counterexamples which show that one can actually come to know something through testimony that no one ever knew before. Yet, the intuitive idea can be preserved by the weaker claim that someone in a knowledge-constituting testimonial chain has to have access to some non-testimonial source of knowledge with regard to what is (...) testified. But even this weaker claim has a counterexample which I develop in close connection with a safety-account of knowledge. Thus, testimonial statements can sometimes enable us to know something for which none of our informants has any source of knowledge available. I conclude that my counterexample nevertheless does not affect the core of our intuitions about testimony, although it establishes that testimony can indeed be a fundamental source of knowledge. (shrink)

Fricker‘s Epistemic Injustice discusses the idea of testimonial injustice, specifically, being harmed in one‘s capacity as a knower. Fricker‘s own theory of testimonial injustice emphasizes the role of prejudice. She argues that prejudice is necessary for testimonial injustice and that when hearers use a prejudice to give a deficit to the credibility of speakers hearers intrinsically harm speakers in their capacity as a knower. This paper rethinks the connections between prejudice and testimonial injustice. I argue that many cases of prejudicial (...) credibility deficits do not intrinsically harm speakers. Further, I suggest that prejudice is not necessary for harming speakers. I provide my own proposal on which testimonial injustice occurs when speaker‘s capacity as a giver of knowledge is interfered with in important ways. My proposal does not give prejudice any essential role. (shrink)

A consensus in a scientific community is often used as a resource for making informed public-policy decisions and deciding between rival expert testimonies in legal trials. This paper contains a social-epistemic analysis of the high-profile Bendectin drug controversy, which was decided in the courtroom inter alia by deference to a scientific consensus about the safety of Bendectin. Drawing on my previously developed account of knowledge-based consensus, I argue that the consensus in this case was not knowledge based, hence courts’ deference (...) to it was not epistemically justified. I draw sceptical lessons from this analysis regarding the value of scientific consensus as a desirable and reliable means of resolving scientific controversies in public life. (shrink)

Unlike other sources of evidence like perception and memory, testimony is intimately related to natural language. That intimacy cannot be overlooked. In this chapter, I show how cross-linguistic considerations are relevant to the epistemology of testimony. I make my case with declaratives containing grammaticalized evidentials. My discussion has a negative and a positive part. For the negative part, it is argued that some definitions of testimony are mistaken because they do not apply to testimony offered by (...) a declarative containing an evidential. The positive component discusses a new puzzle noted by McCready (2015) that evidentials raise about the justificatory status of testimony-based beliefs. (shrink)

This article offers an argument of genocide denial as an injustice perpetrated not only against direct victims and survivors of genocide, but also against future members of the victim group. In particular, I argue that in cases of persistent and systematic denial, i.e. denialism, it perpetrates an epistemic injustice against them: testimonial oppression. First, I offer an account of testimonial oppression and introduce Kristie Dotson’s notion of testimonial smothering as one form of testimonial oppression, a mechanism of coerced silencing particularly (...) pertinent to genocide denialism. Secondly, I turn to the epistemology of genocide denialism and, using the example of Turkey’s denialism of the Armenian genocide, show how it presents what Linda Martín Alcoff calls a substantive practice of ignorance. Thirdly, I apply these considerations to individual practices of genocide denial and analyse the particular characteristics of testimony on genocide, the speaker vulnerabilities involved and the conditions under which hearers will reliably fail to meet the dependencies of a speaker testifying to genocide. Finally, I explore the harms that testimonial oppression perpetrates on members of the victim group, insofar as it systematically deprives them of epistemic recognition. (shrink)

Testimony spreads information. It is also commonly agreed that it can transfer knowledge. Whether it can work as an epistemic source of understanding is a matter of dispute. However, testimony certainly plays a pivotal role in the proliferation of understanding in the epistemic community. But how exactly do we learn, and how do we make advancements in understanding on the basis of one another’s words? And what can we do to maximize the probability that the process of acquiring (...) understanding from one another succeeds? These are very important questions in our current epistemological landscape, especially in light of the attention that has been paid to understanding as an epistemic achievement of purely epistemic value. Somewhat surprisingly, the recent literature in social epistemology does not offer much on the topic. The overarching aim of this paper is to provide a tentative model of understanding that goes in-depth enough to safely address the question of how understanding and testimony are related to one another. The hope is to contribute, in some measure, to the effort to understand understanding, and to explain two facts about our epistemic practices: the fact that knowledge and understanding relate differently to testimony, and the fact that some pieces of testimonial information are better than others for the sake of providing one with understanding and of yielding advancements in one’s epistemic standing. (shrink)

A number of philosophers, from Thomas Reid1 through C. A. J. Coady2, have argued that one is justified in relying on the testimony of others, and furthermore, that this should be taken as a basic epistemic presumption. If such a general presumption were not ultimately dependent on evidence for the reliability of other people, the ground for this presumption would be a priori. Such a presumption would then have a status like that which Roderick Chisholm claims for the epistemic (...) principle that we are justified in believing what our senses tell us. (shrink)

According to many theories of testimony, acts of testimony confer certain epistemic rights upon recipients, e.g., the right for the recipient to complain or otherwise hold the testifier responsible should the content of that testimony turn out to be false, and the right to “pass the epistemic buck”, such that the recipient can redirect relevant challenges they may encounter back to the testifier. While these discussions do not explicitly exclude testimonial acts that occur online, they do not (...) specifically address them, either. Here, then, I will ask the following questions: do the differences between communicating in online and offline spaces affect our testimonial epistemic rights, and if so, how? While there is no singular “online space”, here I will focus on such spaces in which users communicate with one another, and in which communicated information can be vetted by other users (for example, social media). I argue that the characteristics of online testimony should make us think about testimonial epistemic rights differently, in two ways. First, whereas such rights have traditionally been conceived of as existing between the recipient and testifier, in many different types of online communication these rights exist between the recipient and a community. This is a result of the fact that online testimony is mediated, and in some cases partially determined by, a community of users. As such, testimonial epistemic rights in online spaces may be widely extended: while the original testifier still bears the brunt of responsibility for challenges, and is the primary buck-passee, all other members of the relevant community will also bear some such responsibilities. Second, the grounds of testimonial epistemic rights may differ in online spaces. Existing theories tend to ground such rights either in assurances provided by the testifier, or else norms that govern speech acts. I argue that testimony in online spaces should cause us to look to a third option, what I call norms of information sharing. The idea is that, given the highly social nature of online communication, a recipient acquires testimonial epistemic rights in virtue of having a reasonable expectation that information that is shared and vetted by the community meets certain standards. The grounds of online testimonial epistemic rights, then, is not primarily interpersonal or norms-based, but social. (shrink)

Although research on epistemic injustice has focused on the effects of prejudice in epistemic exchanges, the account of prejudice that emerges in Fricker’s (2007) view is not completely clear. In particular, I claim that the epistemic role of prejudice in the structure of testimonial justification is still in need of a satisfactory explanation. What special epistemic power does prejudice exercise that prevents the speaker’s words from constituting evidence for the hearer’s belief? By clarifying this point, it will be possible to (...) address two more general issues concerning the nature of prejudice: its resistance to counterevidence and the steps involved in overcoming prejudice. I propose a hinge account of prejudice, based on the recent perspective of hinge epistemology, to help clarify these aspects. According to the hinge account, prejudices share a fundamental feature with hinges: they work as norms of evidential significance, and as such, they determine what can and cannot count as evidence for belief. (shrink)