Recent work in artificial intelligence has increasingly turned to argumentation as a rich, interdisciplinary area of research that can provide new methods related to evidence and reasoning in the area of law. Douglas Walton provides an introduction to basic concepts, tools and methods in argumentation theory and artificial intelligence as applied to the analysis and evaluation of witness testimony. He shows how witness testimony is by its nature inherently fallible and sometimes subject to disastrous failures. At the (...) same time such testimony can provide evidence that is not only necessary but inherently reasonable for logically guiding legal experts to accept or reject a claim. Walton shows how to overcome the traditional disdain for witness testimony as a type of evidence shown by logical positivists, and the views of trial sceptics who doubt that trial rules deal with witness testimony in a way that yields a rational decision-making process. (shrink)

Knowledge through what others tell us not only forms a large part of the body of our knowledge but also originates the patterns of appraisal according to which we add beliefs to our present store of knowledge.1 I do not mean merely that what we add is often accepted from persons who have already contributed to our knowledge; beyond that, we have acquired habits of thought, tendencies to suspect and tendencies to approve both other-person-reports and purported perceptions, from our testimonial (...) relationships with others. For instance, who would not hesitate to say he saw a particular acquaintance (John Doe) at a visual distance of half a block, after he had just been told by someone he trusted and someone who ought to have known (e.g., John Doe’s wife) that John Doe had just telephoned from a store two hours travel time away? Yet apart from that report, one might have considered it evident that John Doe was half a block away, just because (ceteris paribus) it looked enough like John Doe; the evidence of our senses can be defeated by the authority we accord to the evidence of testimony. (shrink)

According to the Interpersonal View of Testimony, testimonial justification is non-evidential in nature. I begin by arguing that the IVT has the following problem: If the IVT is true, then young children and people with autism cannot participate in testimonial exchanges; but young children and people with autism can participate in testimonial exchanges; thus, the IVT should be rejected on the grounds that it has over-cognized what it takes to give and receive testimony. Afterwards, I consider what I (...) take to be the two best motivations for the IVT and argue that they both fail. The overarching lesson, then, is that the IVT is unmotivated and false; we should think of testimonial justification as being evidential in nature. (shrink)

Recent work in artificial intelligence has increasingly turned to argumentation as a rich, interdisciplinary area of research that can provide new methods related to evidence and reasoning in the area of law. Douglas Walton provides an introduction to basic concepts, tools and methods in argumentation theory and artificial intelligence as applied to the analysis and evaluation of witness testimony. He shows how witness testimony is by its nature inherently fallible and sometimes subject to disastrous failures. At the (...) same time such testimony can provide evidence that is not only necessary but inherently reasonable for logically guiding legal experts to accept or reject a claim. Walton shows how to overcome the traditional disdain for witness testimony as a type of evidence shown by logical positivists, and the views of trial sceptics who doubt that trial rules deal with witness testimony in a way that yields a rational decision-making process. (shrink)

Are the circumstances in which moral testimony serves as evidence that our judgement-forming processes are unreliable the same circumstances in which mundane testimony serves as evidence that our mundane judgement-forming processes are unreliable? In answering this question, we distinguish two possible roles for testimony: (i) providing a legitimate basis for a judgement, (ii) providing (‘higher-order’) evidence that a judgement-forming process is unreliable. We explore the possibilities for a view according to which moral testimony (...) does not, in contrast to mundane testimony play role (i), but can play role (ii). We argue that standard motivations for rejecting this hybrid position are unpersuasive but suggest that a more compelling reason might be found in considering the social nature of morality. (shrink)

An objection to reductionism in the epistemology of testimony that is often repeated but rarely defended in detail is that there is not enough positive evidence to provide the non-testimonial, positive reasons reductionism requires. Thus, on pain of testimonial skepticism, reductionism must be rejected. Call this argument the ‘Not Enough Evidence Objection’. I will defend reductionism about testimonial evidence against the NEEO by arguing that we typically have non-testimonial positive reasons in the form of evidence (...) about our testifier's evidence. With a higher-level evidence principle borrowed from recent work on the epistemology of disagreement, I argue that, granting some plausible assumptions about conversational norms, the NEEO is unsound. (shrink)

Regarding testimony as evidence fails to predict the sort of epistemic support testimony provides for testimonial belief. As a result, testimony-based belief should not be assimilated into the category of epistemically inferential, evidence-based belief.

Until recently, epistemology was largely caught in the grips of an epistemically unrealistic radical epistemological individualism on which the beliefs and testimony of others were of virtually no epistemic significance. Thankfully, epistemologists have bucked the individualist trend, acknowledging that one person's belief or testimony that P might offer another person prima facie epistemic reasons – or social evidence as I call it – to believe P. In this paper, I discuss the possibility and conditions under which beliefs (...) and testimony act as social evidence, in particular, beliefs and testimony regarding the existence of God. The epistemic egoist maintains that one must possess positive reasons in favor of other people's reliability or trustworthiness before their beliefs and testimony offer prima facie social evidence. The epistemic universalist, on the other hand, argues that the beliefs of all others are prima facie credible and should be treated accordingly. All this will set up subsequent discussion of the epistemic significance of common consent or widespread belief in God. I show how common consent arguments assume the epistemic universalist's account of the conditions under which the beliefs and testimony of others acquire reason-giving force as social evidence. (shrink)

Testimony is an indispensable way of gaining knowledge and also a voluntary act for which the teller can be held responsible. This dissertation analyzes these two aspects of testimony, the epistemological and the normative. Indeed, it argues that these two aspects cannot be separated: A satisfactory account of testimony's epistemology must allow for testimony's normative status, while an account of testimony's normative status can be derived from testimony's epistemology. ;Epistemologically, the general reliability of (...) class='Hi'>testimony should be treated differently from the reliability of particular pieces of testimony. We are justified in believing that testimony is generally reliable, without needing evidence to that effect. This avoids the problems that would arise from attempting to gather evidence for testimony's general reliability. Particular pieces of testimony, however, can only provide a justification for belief by providing evidence for what is told. This view about particular pieces of testimony faces the problem of how the teller can present her testimony as evidence while accepting responsibility for it, and how the hearer can take testimony as evidence while holding the hearer responsible for it. ;To solve this problem, I give an account, based on inference to the best explanation, of the specific way testimony provides evidence for what is told. To see testimony as evidence for what is told, we must explain it in terms of the reasons people have for choosing to say one thing rather than another. On this account, the evidence that testimony provides depends on the teller's choice to assume responsibility for her testimony, rather than precluding that assumption of responsibility. ;On the other hand, the epistemology of testimony imposes certain norms on the act of telling someone something. The teller is responsible for the truth of her testimony, in that she stakes her future credibility on its truth. Loss of credibility would count as a sanction for violating the responsibility to tell the truth, because a teller ordinarily intends her testimony to be believed. This responsibility to tell the truth is derived from the epistemology of testimony. (shrink)

In philosophy of religion, when, if ever, is it better to philosophically engage one another as advocates of competing religions (or secular naturalism) as opposed to conducting a more detached philosophical investigation of each other’s actual religious convictions? We offer a narrative overview of a philosophy of religion seminar we participated in, highlighting questions about the possibility of even understanding persons of different religions and considering when, if ever, one’s own religious convictions should be put on exhibit in teaching philosophy (...) of religion. We defend a “middle path,” advocating the permissibility of some disclosure of religious convictions, but with an openness to role play and a passionate commitment to impartiality in class discussion and grading. This middle path lies in between advocacy models (such as Peter Moser’s, Eleonore Stump’s, and Merold Westphal’s) and more strict neutrality models (such as Michael Rea’s). (shrink)

This paper considers a special case of belief updating—when an agent learns testimonial data, or in other words, the beliefs of others on some issue. The interest in this case is twofold: (1) the linear averaging method for updating on testimony is somewhat popular in epistemology circles, and it is important to assess its normative acceptability, and (2) this facilitates a more general investigation of what it means/requires for an updating method to have a suitable Bayesian representation (taken here (...) as the normative standard). The paper initially defends linear averaging against Bayesian-compatibility concerns raised by Bradley (Soc Choice Welf 29:609-632, 2007), as well as problems associated with multiple testimony updates. The resolution of these issues, however, requires an extremely nuanced interpretation of the parameters of the linear averaging model—the so-called weights of respect. We go on to propose a role that the parameters of any 'shortcut' updating function should play, by way of minimal interpretation of these parameters. The class of updating functions that is consistent with this role, however, excludes linear averaging, at least in its standard form. (shrink)

The past two decades have seen a dramatic growth in the use of statisticians and economists for the presentation of expert testimony in legal proceedings. In this paper, we describe a hypothetical case modeled on real ones and involving statistical testimony regarding the causal effect of lead on lowering the IQs of children who ingest lead paint chips. The data we use come from a well-known pioneering study on the topic and the analyses we describe as the expert (...) testimony are similar to ones that can be found in major scientific journals. The battle of the experts in this hypothetical case resembles that which many encounter as expert witnesses. The paper concludes with some observations and advice. (shrink)

Given the risks of misinformation, addressees need to calibrate their trust towards communicators effectively. One way to do this is to evaluate the evidence speakers rely on (their evidential warrant) or claim to have (their evidential claims) when providing testimony. We review key findings in experimental psychology and experimental pragmatics to uncover the mechanisms underlying this form of trust calibration. This will ultimately shed light on the psychological foundations of principles that guide the evaluation of testimony in (...) legal contexts, such as the law against hearsay. (shrink)

We explore an unsolved challenge in the era of evidence-based medicine (EBM): the recognition of the patient as an epistemic agent or ‘knower’. While patients are increasingly acknowledged as carriers of values and preferences, it seems more challenging to acknowledge them as carriers of important causal information. In contrast, the science of pharmacovigilance depends on patient testimonies as valuable sources of causal evidence. This incompatibility can give rise to cases of what has been called participatory epistemic injustice. We (...) analyse the testimony of a chronic pain patient and co-author of this article, Christine. Christine gives an auto-ethnographic account of her interactions with healthcare professionals trying to find the right pharmacological treatment for her condition. Through the analysis of her own story, she identifies some relevant themes for the epistemic interaction between healthcare professionals and chronic pain patients. We argue that such epistemic interactions are increasingly shaped by EBM and its conception of causality, which devalues patient subjective testimonies and emphasises statistical evidence. We conclude that outlier patients face an inherent risk of being left vulnerable to participatory epistemic injustice, particularly regarding the discovery of novel, rare adverse effects of medicines. (shrink)

This article discusses the concept of epistemic authority in the context of English law relating to expert testimony. It distinguishes between two conceptions of epistemic authority, one strong and one weak, and argues that only the weak conception is appropriate in a legal context, or in any other setting where reliance on experts can be publicly justified. It critically examines Linda Zagzebski's defence of a stronger conception of epistemic authority and questions whether epistemic authority is as closely analogous to (...) practical authority as she maintains. Zagzebski elucidates a kind of deference that courts generally, and rightly, try to avoid. Her concept of ‘first person reasons’, however, does capture an important aspect of the deliberations of conscientious legal actors. (shrink)

Przedmiotem niniejszej pracy jest analiza rozprawki An Essay Concerning the Use of Reason in Propositions, The Evidence whereof depends upon Human Testimony (Londyn 1707, II wyd. 1709) brytyjskiego filozofa Anthony’ego Collinsa (1676-1729). Analiza ta prowadzi do odkrycia trudności bronionego w niej stanowiska, polegających na niejasności użytej terminologii, niejednoznaczności tezy głównej, zgodnie z którą warunkiem koniecznym uznania twierdzenia jest jego zgodność z rozumem, oraz niewystarczalności jej podanego w Eseju uzasadnienia. Zarysowano również kontekst filozoficzny i historyczny tego rzadko analizowanego dzieła.

An influential idea in the epistemology of testimony is that people often acquire justified beliefs through testimony, in contexts too informationally poor for the justification to be evidential. This has been described as the Scarcity of Information Objection (SIO). It is an objection to the reductive thesis that the acceptance of testimony is justified by evidence of general kinds not unique to testimony. SIO hinges on examples intended to show clearly that testimonial justification arises in (...) low-information contexts; I argue that the common examples show no such thing. There is a great deal of information available in testimonial contexts, including in the examples alleged to show otherwise – enough information to render SIO implausible. Purported SIO examples tend to give a wrong impression about the informational richness of testimonial contexts, I argue, due to the lack of detail in which they are presented. (shrink)

This paper advocates for a “social turn" in religious epistemology. Part One reviews some familiar skeptical arguments targeting religious belief (the argument from luck, the argument from peer disagreement, Hume's argument). All these skeptical arguments say that testimonial evidence cannot give religious belief adequate support or grounding, especially in the context of conflicting evidence. Part Two considers some recent work in social epistemology and the epistemology of testimony. Several issues regarding the nature of testimonial evidence are (...) considered, and an account of testimonial evidence as a means of distribution of information through the system is defended. Part Three uses the results of Part Two to reconsider the skeptical arguments in Part One. (shrink)

A BAYESIAN ARTICULATION OF HUME’S VIEWS IS OFFERED BASED ON A FORM OF THE BAYES-LAPLACE THEOREM THAT IS SUPERFICIALLY LIKE A FORMULA OF CONDORCET’S. INFINITESIMAL PROBABILITIES ARE EMPLOYED FOR MIRACLES AGAINST WHICH THERE ARE ’PROOFS’ THAT ARE NOT OPPOSED BY ’PROOFS’. OBJECTIONS MADE BY RICHARD PRICE ARE DEALT WITH, AND RECENT EXPERIMENTS CONDUCTED BY AMOS TVERSKY AND DANIEL KAHNEMAN ARE CONSIDERED IN WHICH PERSONS TEND TO DISCOUNT PRIOR IMPROBABILITIES WHEN ASSESSING REPORTS OF WITNESSES.

In this article, I critically examine the role of testimony in the work of truth commissions and its implications for understanding human rights violations and testimony drawing on Jacques Derrida’s deconstruction of testimony. Two key implications emerge from this analysis. First, by applying a tort model, human rights violations are depoliticized through their individualization. This approach turns testimonies into evidence, limiting their critical potential. Depoliticization involves overlooking the political context of violence, which results in a failure (...) to consider power dynamics, potentially reinforcing the same power structures that contributed to the atrocities in the first place. Second, the rationale behind truth commissions, often framed as "giving a voice to the voiceless", tends to prioritize the act of speaking over the moral obligation to listen to testimonies and reflect on one's moral and political responsibilities. Finally, I argue that addressing past human rights violations and their root causes should be guided by an idea of responsibility, particularly the responsibility for justice. The way truth commissions utilize testimony may hinder the fulfillment of this responsibility. (shrink)

This paper develops a descriptive and normative account of how people respond to testimony. It postulates a default pathway in which people more or less automatically respond to a claim by accepting it, as long as the claim made is consistent with their beliefs and the source is credible. Otherwise, people enter a reflective pathway in which they evaluate the claim based on its explanatory coherence with everything else they believe. Computer simulations show how explanatory coherence can be maximized (...) in real-life cases, taking into account all the relevant evidence including the credibility of whoever is making a claim. The explanatory-coherence account is more plausible both descriptively and normatively than a Bayesian account. (shrink)

Anonymity is accepted as necessary for the generation of empirical knowledge concerning human research participants, especially for members of “vulnerable” groups. In particular, anonymity has been given a role in easing the challenges of giving voice to experiences that disrupt familiar and convenient paradigms of knowledge. This paper troubles such a notion, on the grounds that anonymity may undermine the acceptance of such experiences as evidence and reinforce the kind of epistemic politics that treats some assertions as incontrovertible, while (...) silencing others. An uncritical acceptance of anonymity generates concerns about representation, voice, and authorship in research, particularly amongst disadvantaged communities. (shrink)

Children learn about the world from the testimony of other people, often coming to accept what they are told about a variety of unobservable and indeed counter-intuitive phenomena. However, research on children’s learning from testimony has paid limited attention to the foundations of that capacity. We ask whether those foundations can be observed in infancy. We review evidence from two areas of research: infants’ sensitivity to the emotional expressions of other people; and their capacity to understand the (...) exchange of information through non-verbal gestures and vocalization. We conclude that a grasp of the bi-directional exchange of information is present early in the second year. We discuss the implications for future research, especially across different cultural settings. (shrink)

While courts depend on expert opinions in reaching sound judgments, the role of the expert witness in legal proceedings is associated with a litany of problems. Perhaps most prevalent is the question of under what circumstances should testimony be admitted as expert opinion. We review the changing policies adopted by American courts in an attempt to ensure the reliability and usefulness of the scientific and technical information admitted as evidence. We argue that these admissibility criteria are best seen (...) in a dialectical context as a set of critical questions of the kind commonly used in models of argumentation. (shrink)

We access most of our most cherished beliefs via testimony. Philosophy is no exception. We treat spoken and written philosophical testimony as evidence for philosophical claims. Nonetheless, this paper argues that philosophical testimony is unable to justify philosophical beliefs. If testimony is the only evidence we have to justify philosophical beliefs, this entails skepticism about philosophy. Call this the testimony challenge. First, the paper argues that philosophical testimony does not meet the conditions (...) under which evidence can justify our beliefs. Second, it shows that philosophical testimony cannot provide preemptive epistemic reasons as science and mathematics do. Finally, it answers the self‐defeat objection and a set of objections aiming to block the thesis that philosophical testimony does not justify philosophical beliefs. The paper aims to rethink the role of philosophical testimony in philosophy and reinforce the skeptical worries raised by methodological and disagreement challenges. (shrink)

I defend the acceptance principle for testimony (APT), that hearers are justified in accepting testimony unless they have positive evidence against its reliability, against Elizabeth Fricker's local reductionist view. Local reductionism, the doctrine that hearers need evidence that a particular piece of testimony is reliable if they are to be justified in believing it, must on pain of scepticism be complemented by a principle that grants default justification to some testimony; I argue that (APT) (...) is the principle required. I consider two alternative weaker principles as complements to local reductionism; one yields counter-intuitive results unless we accept (APT) as well, while the other is too weak to enable local reductionism to avoid scepticism. (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)

A proof is offered that aims to show that there can be no knowledge of God, excluding knowledge based on natural theology, without divine self-testimony. Both special and general revelation, if they occur, would be forms of divine self-testimony. It is argued that this indicates that the best way to model such knowledge of God is on the basis of an analogy with knowledge gained through testimony, rather than perceptual models of knowledge, such as the prominent model (...) defended by Plantinga. Appropriate causal chains and reliable cognitive processes only seem at best to ensure that a belief proposed for acceptance is the belief the testifier wants accepted; they do not ensure that it is rational to accept the belief. This particularly applies where there is much at stake, where it seems rational to seek some form of evidence, if available. Some brief comments are made on Trinitarian self-testimony. Another model of the ‘inner witness’ is briefly sketched out, based on the analogy with conscience. This model may capture some of the features of Plantinga’s approach, but leaves room for a free rejection of divine self-testimony, in a way that the perceptual analogy does not. A point connected to Plantinga’s aims is then made about the link between evidence, value and divine self-testimony, in relation to religious experience. Finally, it is suggested that the earlier proof may apply in a particular sense to all knowledge of God, including that based on natural theology. (shrink)

This paper argues that as a name for a speech act, epistemologists typically use ‘testimony’ in a specialist sense that is more or less synonymous with ‘assertion’, but as a name for a distinctive speech act type in ordinary English, ‘testimony’ names a unique confirmative speech act type. Hence, like any good English word, ‘testimony’ has more than one sense. The paper then addresses the use of ‘testimony’ in epistemology to denote a distinctive kind of (...) class='Hi'>evidence: testimonial evidence. Standing views of a hearer’s testimonial evidence see it as partly supervening on a speaker’s assertion that P. The paper argues for a broader account that sees a hearer’s testimonial evidence as partly supervening instead on the hearer’s representation as of a speaker meaning that P. This broader account is the comprehension view of testimonial evidence. The upshot is that not all so-called “testimony-based beliefs” are caused by a speaker’s testimony. (shrink)

Among contemporary epistemologists of testimony, David Hume is standardly regarded as a ‘global reductionist’, where global reductionism requires the hearer to have sufficient first-hand knowledge of the facts in order to individually ascertain the reliability of the testimony in question. In the present paper, I argue that, by construing Hume’s reductionism in too individualistic a fashion, the received view of Hume on testimony is inaccurate at best, and misleading at worst. Overall, Hume is much more willing to (...) regard testimonial acceptance as a natural response to testimony than has traditionally been thought. In particular, Hume believes that indirect evidence of human nature and of the social world around us, can take the place of first-hand evidence of the track record of individual speakers or specific classes of testimony. In developing this interpretation of Hume’s views on testimony, the present paper draws on discussions found in the Treatise, the Enquiry, and in Hume’s writings on historical knowledge. In der zeitgenössischen Debatte um den erkenntnistheoretischen Status zeugnisbasiertenWissens wird gern auf David Hume als den Urheber eines „globalen Reduktionismus“ verwiesen, demzufolge der Zeugnisempfänger über ausreichend empirische Belege für die Verlässlichkeit des betreffenden Zeugnisses verfügen muss. Im vorliegenden Aufsatz soll gezeigt werden, dass die in der Literatur vorherrschende Meinung ein übertrieben „individualistisches“ Bild von Humes Reduktionismus zeichnet; dadurch wird Humes Position in der gegenwärtigen Debatte ungenau und bisweilen irreführend wiedergegeben. Bei genauerer Betrachtung erweist sich Hume als ausgesprochen aufgeschlossen gegenüber dem Akzeptieren fremden Zeugnisses und sieht darin eine Art Grundmuster im testimonialen Umgang mit anderen. Insbesondere konzediert Hume, dass indirekt erworbenes Wissen um die menschliche Natur und die soziale Welt an die Stelle direkter Belege für die Verlässlichkeit einzelner Zeugen treten kann. Die im vorliegenden Aufsatz entwickelte Neuinterpretation stützt sich auf den Treatise, den Enquiry und auf Humes Schriften zum Problem der historischen Erkenntnis. (shrink)

Evidence-based Management (EBMgt) and Evidence-Based Management + (EBMgt +) are two approaches to management according to which managerial decisions should be based on the best available evidence, as this increases the likelihood of their effectiveness. In these approaches, four types of evidence are considered: evidence from the scientific literature, from practitioners, from the organisation and from stakeholders. In EBMgt +, evidence is characterised as a three-place relation between information, a claim and a method. In (...) many circumstances, probability sampling methods (PSMs) are the best methods to gather the abovementioned types of evidence. We present a case study concerning harassment in the workplace to illustrate a circumstance in which fact-finding methods, rather than PSMs, are the best methods to gather evidence. We argue that information thus gathered should count as evidence in the spirit of EBMgt +. However, while part of the evidence needed in the case study comes from the stakeholders, it does not fit the characterisations of ‘evidence from stakeholders’ considered in EBMgt and EBMgt +. Therefore, we disentangle sources and types of evidence which, in turn, enables us to characterise a new type of evidence – testimonial evidence – that should be included in the theory of evidence-based management. Differentiating between sources and types has the potential to bring theory and practice closer together, whereas including testimonial evidence has the potential to make the theory of evidence-based management applicable in a wider range of circumstances, such as trade secret theft and conflicts of interest. (shrink)

Eyewitness testimony is a powerful form of evidence, and this is especially true in the United States criminal legal system. At the same time, eyewitness misidentification is the greatest contributing factor to wrongful convictions proven by DNA testing. In this paper, I offer a close examination of this tension between the enormous epistemic weight that eyewitness testimony is afforded in the United States criminal legal system and the fact that there are important questions about its reliability as (...) a source of evidence. In Sections 1 and 2, I argue that lineups and interrogations often function by way of extracting testimony from an eyewitness through practices that are manipulative, deceptive, or coercive. I then show, in Section 3, that when testimony that is extracted in these ways is given an unwarranted excess of credibility, the eyewitness in question is the victim of what I call agential testimonial injustice. I conclude that since much of the testimony of eyewitnesses is both extracted and given an excess of credibility, there is a fairly widespread form of epistemic injustice being inflicted upon testifiers in the United States criminal legal system. This calls for reforms along both dimensions—lineups and interrogations should go through a witness's epistemic agency, rather than bypassing, exploiting, or undermining it, and the weight of the resulting testimony should be viewed in the broader context of its significant fallibility. (shrink)

The case of very young children is a test case for the plausibility of reductionism about testimonial warrant. Reductionism requires reductive reasons, reductively justified and actively deployed for testimonial justification. Though nascent language-users enjoy warranted testimony based beliefs, they do not meet these three reductionist demands. This paper clearly formulates reductionism and the infant/child objection. Two rejoinders are discussed: an influential conceptual argument from Jennifer Lackey’s paper “Testimony and the Infant/Child Objection” and the growing empirical evidence from (...) developmental psychology on selective trust in children. Neither Lackey’s argument nor the empirical evidence vindicate reductionism. (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 article discusses the role of Gulag literature in connection to testimony, literature and historical documentation. Drawing on the thoughts of Jacques Derrida and Hannah Arendt, the article examines the difficulty of witnesses being believed in the absence of evidence. In particular, the article focuses on the vulnerability of the Gulag authors, due to the ongoing Soviet repression at the time of their writing. It examines the interplay between the repression and the literature that exposed it. The article (...) contends that the fictionalization of Gulag literature enabled the authors to go further in challenging Soviet repression. Focusing on the fictional accounts written by Varlam Shalamov and Aleksandr Solzhenitsyn, it argues that the fictionalized Gulag literature makes the experience of the camp universe possible to imagine for those outside, allowing readers to believe in an experience that otherwise seems incredible. (shrink)

ArgumentSeeing a prodigious cure happen and then testifying about it certainly differs from attending an air pump experiment in order to bear witness to it. Yet early-modern saint-making and the “new” or “experimental philosophy” shared juridical roots, and thereby an understanding of the role of testimony for the establishment of “matters of fact” and for the production of legitimate knowledge. The reforms carried out after the Council of Trent, especially during Urban VIII's pontificate, of the juridical procedures for saint-making (...) in the Catholic Church implied a new attitude towards the examination of proposed miracles. Most of these miracles were healings. While the appeal to medical expertise had long been common, and skepticism had often manifested itself regarding cures or extraordinary bodily phenomena, both were now given formal status. Miracle inquests henceforth leaned towards refuting miraculousness by means of natural explanations. The procedure was systematized in a treatise published in the 1730s by Prospero Lambertini. The combination of Lambertini's work with the canonization causes in which he acted as the “devil's advocate” in charge of disputing arguments favorable to a sainthood candidate allows for a reconstruction of the interplay between the juridical and scientific economies of saint-making, and of the role of testimony in the production of trust and evidence. (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)

Testimony is a special challenge in epistemology. Human life as we know it would be impossible without it; we commonly accept it without question; and only the highly skeptical doubt that from it we gain much knowledge about matters on which we lack independent evidence. In my theory of testimony, it figures as an essential source of knowledge in our lives, but not as a basic source of it; and the way in which testimony yields justification (...) for believing its content is very different from the way in which it yields knowledge. Isabelle Keßels, David Lambert, and Christian Quast have produced a long and detailed study of my treatment of the topic, and here I can note only some important aspects of it and seek to discuss them in ways that may advance understanding of some major aspects of the topic. (shrink)