One of the lessons of the COVID-19 pandemic is that the lay public relies immensely on the knowledge of public health officials. At every phase of the pandemic, the testimony of public health officials has been crucial for guiding public policy and individual behavior. The reason is simple: public health officials know a lot more than you and I do about public health. As lay people, we rely on experts. This seems straightforward. But the COVID-19 pandemic has shown that public (...) health officials seem undecided as to what, precisely, their role is; are they providing the public information as it presents itself, or are they informing the public in a way that produces a desired or optimal outcome? In this article, I answer the following question: what are public health officials morally obligated to tell the public? As I see it, these are the main options: (1) public health officials should tell the full truth, regardless of outcome; or (2) they should tell partial truths or lies that are aimed to promote a socially optimal outcome. My answer to this question is that public health officials are only allowed to lie under very narrow and rare conditions. -/- . (shrink)

The aim of this paper is to argue that lying differs from mere misleading in a way that can be morally relevant: liars commit themselves to something they believe to be false, while misleaders avoid such commitment, and this difference can make a moral difference. Even holding all else fixed, a lie can therefore be morally worse than a corresponding misleading utterance. But, we argue, there are also cases in which the difference in commitment makes lying morally better than misleading, (...) as well as cases in which the difference is not morally relevant. This view conflicts with the two main positions philosophers have defended in the ethics of lying and misleading, which entail either that lying is in virtue of its nature worse than misleading or that there is no morally relevant difference between lying and misleading. (shrink)

We have good reason to condemn lying more strongly than misleading and to condemn bullshit assertion less harshly than lying but more harshly than misleading. We each have good reason to mislead rather than make bullshit assertions, but to make bullshit assertions rather than lie. This is because these forms of deception damage credibility in different ways. We can trust the misleader to assert only what they believe to be true. We can trust the bullshitter not to assert what they (...) believe to be false. We cannot trust the liar at all. (shrink)

This article discusses recent work on lying and its relation to deceiving and misleading. Two new developments in this area are considered: first, the acknowledgment of the phenomenon of lying without the intent to deceive , and second, recent work on the distinction between lying and merely misleading. Both are discussed in relation to topics in philosophy of language, the epistemology of testimony, and ethics. Critical surveys of recent theories are offered and challenges and open questions for further research are (...) indicated. (shrink)

This essay argues that the distinction between lying and misleading while not lying is sensitive to discourse structure. It shows that whether an utterance is a lie or is merely misleading sometimes depends on the topic of conversation, represented by so-called questions under discussion. It argues that to mislead is to disrupt the pursuit of the goal of inquiry—that is, to discover how things are. Lying is seen as a special case requiring assertion of disbelieved information, where assertion is characterized (...) as a mode of contributing information to a discourse that is sensitive to the state of the discourse itself. The resulting account is applied to a number of ways of exploiting the lying-misleading distinction, involving conversational implicature, incompleteness, presuppositions, and prosodic focus. The essay shows that assertion, and hence lying, is preserved from subquestion to superquestion under a strict entailment relation between questions, and it discusses ways of lying and misleading in relation to multiple questions. (shrink)

In the world of philosophy of science, the dominant theory of confirmation is Bayesian. In the wider philosophical world, the idea of inference to the best explanation exerts a considerable influence. Here we place the two worlds in collision, using Bayesian confirmation theory to argue that explanatoriness is evidentially irrelevant.

I argue that lying is generally morally better than mere deliberate misleading because the latter involves the exploitation of a greater trust and more seriously abuses our willingness to fulfil epistemic and moral obligations to others. Whereas the liar relies on our figuring out and accepting only what is asserted, the mere deliberate misleader depends on our actively inferring meaning beyond what is said in the form of conversational implicatures as well. When others’ epistemic and moral obligations are determined by (...) standard assumptions of communicative cooperation and no compelling moral reason justifies mere deliberate misleading instead, one had better lie. (shrink)

We often say one thing and mean another. This kind of indirection (concerning the content conveyed) is both ubiquitous and widely recognized. Other forms of indirection, however, are less common and less discussed. For example, we can sometimes address one person with the primary intention of being overheard by someone else. And, sometimes speakers say something simply in order to make it possible for someone else to say that they said it. Politicians generating sounds bites for the media are an (...) example of this kind of indirection. In this paper, I will explore—via a series of fictionalized examples—these less discussed forms of indirection and consider how such forms of indirection can be duplicitous and misleading. (shrink)

Intuitions about retractions have been used to motivate truth relativism about certain types of claims. Among these figure epistemic modals, knowledge attributions, or personal taste claims. On MacFarlane’s prominent relativist proposal, sentences like “the ice cream might be in the freezer” or “Pocoyo is funny” are only assigned a truth-value relative to contexts of utterance and contexts of assessment. Retractions play a crucial role in the argument for assessment-relativism. A retraction of a past assertion is supposed to be mandatory whenever (...) the asserted sentence is not true at the context of use and the context of assessment. If retractions were not obligatory in these conditions, there would be no normative difference between assessment-relativism and contextualism. The main goal of this paper is to undermine the claim that retractions reveal this normative difference. To this effect, the paper offers a review of three important objections to the obligatoriness of retractions. Taken together, these objections make a strong case against the alleged support that retractions give to assessment-relativism. The objections are moreover supported by recent experimental results that are also discussed. This will satisfy a further goal, which is to undermine the idea that there is a constitutive retraction rule. The paper also discusses two ways to understand what such a rule would be constitutive of, and concludes with a discussion of how to describe what retractions are. (shrink)

In “Deception and the Clinical Ethicist,” Christopher Meyers argues that clinical ethicists sometimes ought to actively help deceive patients or their families, all...

A central debate in the ethics of deception concerns the moral comparison among the three media through which deception is executed: lying, falsely implicating, or nonlinguistic deception. The two prominent views are that lying is morally worse or that the choice of medium is morally insignificant. This article refutes both and argues for a new position. The article first presents a theory on the moral significance of the medium of deception as such: it argues that the medium of communication affects (...) the reliability of beliefs formed through it, which amounts to gradations in the warrant of truth of different media. Breach of lower warrant of truth is a lesser breach of trust; it therefore deserves lighter condemnation. Consequently, the article shows that, morally speaking, lying is either worse than or equal to falsely implicating and that there is no a priori gradation between nonlinguistic deception and the two linguistic media. (shrink)

The moral comparison of the three venues of deception—lying, falsely implicating, and nonverbal deception—is a central, ongoing debate in the ethics of deception. To date there has been no attempt to advance in the debate through experimental philosophy. Using methods of experimental economics, we devised a strategic game to test positions in the debate. Our article presents the experimental results and shows how philosophical analysis of the results allows drawing valid normative conclusions. Our conclusions testify against the dominant position in (...) the debate—that lying is morally worse than all non-lying deceptions. They offer prima facie support to the view that the venue of deception makes no moral difference. (shrink)

ABSTRACTThis paper introduces the category of ‘non-deceptive manipulation that causes false beliefs’, analyzes how it narrows the traditional scope of ‘deception’, and draws moral implications.

It is widely agreed that deception of the enemy can be morally permissible in war. However, the question of the morally acceptable limits to deception in war has barely been explored in contemporary ethics. This paper defends the thesis that there are no moral limits on military deception per se, that is, no limits based on the ethics of truthfulness. Rather, all moral restriction against deception in war is based on another moral principle: military deception is morally unacceptable only when (...) it violates the principle of not harming those who do not intend to harm us. (shrink)

An important moral category—dishonest speech—has been overlooked in theoretical ethics despite its importance in legal, political, and everyday social exchanges. Discussion in this area has instead been fixated on a binary debate over the contrast between lying and ‘merely misleading’. Some see lying as a distinctive wrong; others see it as morally equivalent to deliberately omitting relevant truths, falsely insinuating, or any other species of attempted verbal deception. Parties to this debate have missed the relevance to their disagreement of the (...) notion of communicative dishonesty. Communicative dishonesty need not take the form of a lie, yet its wrongness does not reduce to the wrongness of seeking to deceive. This paper therefore proposes a major shift of attention away from the lying/misleading debate and towards the topic of communicative dishonesty. Dishonesty is not a simple notion to define, however. It presupposes a difficult distinction between what is and is not expressed in a given utterance. This differs from the more familiar distinction between what is and is not said, the distinction at the heart of the lying/misleading debate. This paper uses an idea central to speech act theory to characterize dishonesty in terms of the utterer’s communicative intentions, and applies the resulting definition to a variety of contexts. (shrink)

Survey of different definitions of lying and deceiving, with an emphasis on the contemporary debate between Thomas Carson, Roy Sorensen, Don Fallis, Jennifer Saul, Paul Faulkner, Jennifer Lackey, David Simpson, Andreas Stokke, Jorg Meibauer, Seana Shiffrin, and James Mahon, among others, over whether lies always aim to deceive. Related questions include whether lies must be assertions, whether lies always breach trust, whether it is possible to lie without using spoken or written language, whether lies must always be false, whether lies (...) that are unsuccessful are still lies, and whether deception must aim at creating false beliefs as opposed to preventing people from acquiring true beliefs. (shrink)

Throughout this paper, we are trying to show how and why our Mathematical frame-work seems inappropriate to solve problems in Theory of Computation. More exactly, the concept of turning back in time in paradoxes causes inconsistency in modeling of the concept of Time in some semantic situations. As we see in the first chapter, by introducing a version of “Unexpected Hanging Paradox”,first we attempt to open a new explanation for some paradoxes. In the second step, by applying this paradox, it (...) is demonstrated that any formalized system for the Theory of Computation based on Classical Logic and Turing Model of Computation leads us to a contradiction. We conclude that our mathematical frame work is inappropriate for Theory of Computation. Furthermore, the result provides us a reason that many problems in Complexity Theory resist to be solved.(This work is completed in 2017 -5- 2, it is in vixra in 2017-5-14, presented in Unilog 2018, Vichy). (shrink)

This thesis addresses philosophical problems concerning improper assertions. The first part considers the issue of defining lying: here, against a standard view, I argue that a lie need not intend to deceive the hearer. I define lying as an insincere assertion, and then resort to speech act theory to develop a detailed account of what an assertion is, and what can make it insincere. Even a sincere assertion, however, can be improper (e.g., it can be false, or unwarranted): in the (...) second part of the thesis, I consider these kinds of impropriety. An influential hypothesis maintains that proper assertions must meet a precise epistemic standard, and several philosophers have tried to identify this standard. After reviewing some difficulties for this approach, I provide an innovative solution to some known puzzles concerning the permissibility of false assertions. In my view, assertions purport to aim at truth, but they are not subject to a norm that requires speakers to assert a proposition only if it is true. (shrink)