We talk about irrationality when behaviour defies explanation or prediction, when decisions are driven by emotions or instinct rather than by reflection, when reasoning fails to conform to basic principles of logic and probability, and when beliefs lack coherence or empirical support. Depending on the context, agents exhibiting irrational behaviour may be described as foolish, ignorant, unwise or even insane. -/- In this clear and engaging introduction to current debates on irrationality, Lisa Bortolotti presents the many facets of (...) the concept and offers an original account of the importance of judgements of irrationality as value judgements. The book examines the standards against which we measure human behaviour, and reviews the often serious implications of judgements of irrationality for ethics and policy. Bortolotti argues that we should adopt a more critical stance towards accepted standards of rationality in the light of the often surprising outcomes of philosophical inquiry and cognitive science research into decision making. -/- Irrationality is an accessible guide to the concept and will be essential reading for students and scholars interested in the limitations of human cognition and human agency. (shrink)

On the standard interpretation, if a person holds cyclical preferences, the person is prone to acting irrationally. I provide a different interpretation, tying cyclical preferences not to irrationality, but to indecision. According to this alternative understanding – coined the indecision interpretation – top cycles in a person’s preferences can be associated with a difficulty in justifying one’s choice. If an agent’s justificatory impasse persists despite attempts to resolve the cycle, the agent can be deemed undecided. The indecision interpretation is (...) compatible with the standard interpretation of such cycles as instances of irrationality. Yet indecision corresponds to a first-person, non-instrumental perspective on the problem, whereas irrationality usually corresponds to a third-person, instrumental perspective. Due to these differences, interpreting cycles in terms of indecision offers a novel conceptual perspective, pertinent both for explanatory purposes and for the aim of normative theorizing. (shrink)

Deductive Irrationality examines and critiques economic rationalism by assessing the work of influential political philosophers and economic theorists such as Thomas Hobbes, John Locke, Adam Smith, Friedrich Hayek, Gunnar Myrdal, and John F. Muth. It is one of the first serious attempts to investigate the dominant sub-fields in economic theory through the lens of political philosophy.

The specific type of irrationality known as akrasia or weakness of the will has been a subject of vigorous debate ever since Plato in his Protagoras had Socrates defend the thesis that "no one willingly does wrong." Against Socrates and many contemporary thinkers on the subject, Mele attempts to vindicate akrasia as a genuine possibility. As he explores the theoretical labyrinth, his view emerges as rich in philosophic insight and experimental data from psychological research, the latter of which he (...) uses effectively in showing the way out of a number of paradoxes. (shrink)

Deductive Irrationality examines and critiques economic rationalism by assessing the work of influential political philosophers and economic theorists such as Thomas Hobbes, John Locke, Adam Smith, Friedrich Hayek, Gunnar Myrdal, and John F. Muth. It is one of the first serious attempts to investigate the dominant sub-fields in economic theory through the lens of political philosophy.

The literature on motivated irrationality has two primary foci: action and belief. This article explores two of the central topics falling under this rubric: akratic action (action exhibiting so-called weakness of will or deficient self-control) and motivationally biased belief (including self-deception). Among other matters, this article offers a resolution of Donald Davidson's worry about the explanation of irrationality. When agents act akratically, they act for reasons, and in central cases, they make rational judgments about what it is best (...) to do. The rationality required for that is in place. However, to the extent to which their actions are at odds with these judgments, they act irrationally. Motivationally biased believers test hypotheses and believe on the basis of evidence. Again there is a background of rationality. But owing to the influence of motivation, they violate general standards of epistemic rationality. (shrink)

Pseudoscience spreads through communicative and inferential processes that make people vulnerable to weird beliefs. However, the fact that pseudoscientific beliefs are unsubstantiated and have no basis in reality does not mean that the people who hold them have no reasons for doing so. We propose that, reasons play a central role in the diffusion of pseudoscience. On the basis of cultural epidemiology and the interactionist theory of reasoning, we will here analyse the structure and the function of reasons in the (...) propagation of pseudoscience. We conclude by discussing the implications of our approach for the understanding of human irrationality. (shrink)

A philosophical treatment of irrationality should at the same time leave space for irrational forms of thought and action and illuminate what is defective about them. While Davidson's analysis of weakness of the will is justly famous, some of Davidson's general philosophical commitments in fact conspire to make it especially difficult for him to account for irrationality. Davidson's conviction that irrationality must involve inconsistency, together with his rather circumscribed understanding of inconsistency, make it questionable whether he can (...) leave the right kind of space for irrational phenomena that seem nonetheless to exist. (shrink)

Just as sadness is not always a symptom of mood disorder, irrational beliefs are not always symptoms of illness. Pathological irrational beliefs are distinguished from non-pathological ones by considering whether their existence is best explained by assuming some underlying dysfunctions. The features from which to infer the pathological nature of irrational beliefs are: un-understandability of their progression; uniqueness; coexistence with other psycho-physiological disturbances and/or concurrent decreased levels of functioning; bizarreness of content; preceding organic diseases known to be associated with irrational (...) beliefs; treatment response to medical intervention, etc. Severe irrationality is sometimes caused by normal human motivation rather than by mental or physical dysfunction. Pure forms of self-deception may satisfy the diagnostic criteria of delusional disorder, but there may be no evidence that suggests that they are caused by illness. Although those with pathological delusions do not recognize their delusions as symptomatic of illness, differentiating pathological beliefs from normal irrational beliefs is vitally important: If a belief is pathological, psychiatrists must seriously consider treating the patient against her will. If it is not pathological, conversely, involuntary treatments are prohibited because they offend her basic autonomy. (shrink)

* [Irrationality]: ___ Irrationality, like rationality, is a normative concept. Someone who acts or reasons irrationally, or whose beliefs or emotions are irrational, has departed from a standard.

Abstract Studies of irrationality in cognitive psychology have usually looked at areas where humans might be expected to be rational, yet appear not to be. In this paper the other extreme of human irrationality is examined: the delusion as it occurs in psychiatric illness. A parallel is suggested between the delusion as an aberration of cognition and some illusions which result from aberrations within optics. It is argued that, because delusions are found predominantly within certain limited areas of (...) cognitive functioning, they may represent a form of mental aberration which may tell us something about the abstract properties of mind. Possible implications of this model for several areas of cognitive science are discussed. (shrink)

This book is about self-deception and lack of self-control or wishful thinking and acting against one's own better judgement. Steering a course between the skepticism of philosophers, who find the conscious defiance of reason too paradoxical, and the tolerant empiricism of psychologists, it compares the two kinds of irrationality, and relates the conclusions drawn to the views of Freud, cognitive psychologists, and such philosophers as Aristotle, Anscombe, Hare and Davidson.

Transhumanists and their fellow travelers urge humanity to prioritize the development of biotechnologies that would eliminate aging, delivering ‘an endless summer of literally perpetual youth.’ Aspiring not to age instantiates what philosopher Martha Nussbaum calls the yearning for ‘external transcendence,’ or the fundamental surpassing of human bounds due to confidence that life without them would be better. Based on Immanuel Kant’s account of the parameters of human understanding, I argue that engineering agelessness could not be a rational priority for humanity (...) on the level of public policy. This stance is complemented by an argument focused on individual decision-making in liberal-democratic milieus, where no governing conception of the good is presumed and the first-personal level matters greatly. Here, drawing on philosopher and cognitive scientist Laurie Ann Paul’s concept of ‘transformative experience,’ I maintain that individuals could not ‘rationally,’ meaning, here, ‘prudentially,’ say ‘yes’ to agelessness. Absorbing the irrationality of human zeal to eliminate aging, based on assurance that an ageless existence would be better, should spur a redoubled dedication to human flourishing. (shrink)

The author demonstrates that certain forms of irrationality - incontinent action and self-deception - which many philosophers have rejected as being logically or psychologically impossible, are indeed possible.

A fascinating history that reveals the ways in which the pursuit of rationality often leads to an explosion of irrationality It’s a story we can’t stop telling ourselves. Once, humans were benighted by superstition and irrationality, but then the Greeks invented reason. Later, the Enlightenment enshrined rationality as the supreme value. Discovering that reason is the defining feature of our species, we named ourselves the “rational animal.” But is this flattering story itself rational? In this sweeping account of (...) irrationality from antiquity to today—from the fifth-century BC murder of Hippasus for revealing the existence of irrational numbers to the rise of Twitter mobs and the election of Donald Trump—Justin Smith says the evidence suggests the opposite. From sex and music to religion and war, irrationality makes up the greater part of human life and history. Rich and ambitious, Irrationality ranges across philosophy, politics, and current events. Challenging conventional thinking about logic, natural reason, dreams, art and science, pseudoscience, the Enlightenment, the internet, jokes and lies, and death, the book shows how history reveals that any triumph of reason is temporary and reversible, and that rational schemes, notably including many from Silicon Valley, often result in their polar opposite. The problem is that the rational gives birth to the irrational and vice versa in an endless cycle, and any effort to permanently set things in order sooner or later ends in an explosion of unreason. Because of this, it is irrational to try to eliminate irrationality. For better or worse, it is an ineradicable feature of life. Illuminating unreason at a moment when the world appears to have gone mad again, Irrationality is fascinating, provocative, and timely. (shrink)

A large body of research in cognitive psychology and neuroscience draws on Bayesian statistics to model information processing within the brain. Many theorists have noted that this research seems to be in tension with a large body of experimental results purportedly documenting systematic deviations from Bayesian updating in human belief formation. In response, proponents of the Bayesian brain hypothesis contend that Bayesian models can accommodate such results by making suitable assumptions about model parameters. To make progress in this debate, I (...) argue that it is fruitful to focus not on specific experimental results but rather on what I call the ‘sources of epistemic irrationality’ in human cognition. I identify four such sources and I explore whether and, if so, how Bayesian models can be reconciled with them: processing costs, evolutionary suboptimality, motivated cognition, and error management. 1 Introduction 2 The Bayesian Brain 3 The Problem of Epistemic Irrationality 3.1 Bayesian inference and rationality 3.2 Intuitive Bayesian inference 4 Sources of Epistemic Irrationality 4.1 Processing costs 4.2 Evolutionary suboptimality 4.3 Motivational influences 4.4 Error management 5 Conclusion. (shrink)

Summary Beginning with the paradoxical fact of the plurality of philosophical systems, the irrationality of this situation is examined, first, from the point of view of two solutions — the Hegelian solution and that which dissolves the paradox by denying that systems are exclusive of one another — judged to be inadequate; and then from the viewpoint of the contrast between the claims of genuine philosophy and its actual historical practice. The idea of system is examined from the perspective (...) of Spinoza's Ethics and, finally, M. Gueroult's idéalisme intégral serves as a guide in exploring the result of subordinating the historical features of philosophical activity to its systematic features.RésuméPartant du fait paradoxal de la pluralité des systèmes philosophiques, l'auteur examine l'irrationalité de cette situation d'abord du point de vue de deux solutions — celle de Hegel et celle qui résoud le paradoxe en niant que les systèmes s'excluent mutuellement — solutions qui sont jugées inadéquates; puis du point de vue du contraste entre la véritable philosophie et sa pratique historique effective. L'idée de système est examinée dans la perspective de l'éthique de Spinoza et, enfin, l'idéalisme intégral de M. Gueroult sert de guide pour explorer les conséquences d'une subordination des aspects historiques de l'activité philosophique à ses aspects systématiques.ZusammenfassungAngesichts der paradoxen Situation der Pluralität von philosophischen Systemen wird die Irrationalität dieser Situation untersucht: zunächst vom Gesichtspunkt zweier Lösungen — nämlich der Lösung Hegels und derjenigen die darin besteht, die Unvereinbarkeit der Systeme zu leugnen —, die beide als inadäquat verworfen werden; dann von einem Standpunkt aus, der zwischen den Ansprüchen echter Philosophie und deren tatsächlicher historischer Praxis unterscheidet. Der Begriff des Systems wird aus der Perspektive von Spinozas Ethik untersucht und schliesslich wird M. Gueroults integraler Idealismus als Führer verwendet, um das Ergebnis einer Unterwerfung der historischen Züge philosophischer Tätigkeit unter ihre systematischen Züge zu durchleuchten. (shrink)

Many interpreters argue that irrational acts of exchange can count as rational and civic-minded for Hegel—even though, admittedly, the persons who are exchanging their property are usually unaware of this fact. While I do not want to deny that property exchange can count as rational in terms of ‘mutual recognition’ as interpreters claim, this proposition raises an important question: What about the irrationality and arbitrariness that individuals as property owners and persons consciously enjoy? Are they mere vestiges of nature (...) in Hegel’s system, or do they constitute a simple yet valid form of freedom that is not only a part of Hegel’s rational system of right, but its necessary starting point? I will argue the latter: The arbitrary, purely egoist self-definition of property owners is the simplest possible type of freedom for Hegel, which he dissects in order to show how the very arbitrary self-definition implicitly relies on an identity between persons, and hence foreshadows the more social forms of freedom Hegel will discuss later in his book. I make this argument by highlighting Hegel’s references to his discussion of atoms and freedom in his Logic of Being. (shrink)

I characterize a notion of internal irrationality which is central to hard cases of self-deception. I argue that if we aim to locate such internal irrationality in the _process of self-deception, we must fail. The process of self-deception, I claim, is a wholly arational affair. If we are to make a place for internal irrationality we must turn our attention to the _state of self-deception. I go on to argue that we are able to offer an account (...) of this peculiar form of irrationality only if we recognize the role the self-deceiver's own efforts at self-explanation play in the generation of internal irrationality. (shrink)

The present paper proposes an integrative account of social forms of practical irrationality and corresponding disruptions of individual and group-level emotion regulation. I will especially focus on disruptions in emotion regulation by means of collaborative agential and doxastic akrasia. I begin by distinguishing mutual, communal and collaborative forms of akrasia. Such a taxonomy seems all the more needed as, rather surprisingly, in the face of huge philosophical interest in analysing the possibility, structure and mechanisms of individual practical irrationality, (...) with very little exception, there are no comparable accounts of social and collaborative cases. However, I believe that, if it is true that individual akrasia is, in the long run, harmful for those who entertain it, this is even more so in social contexts. I will illustrate this point by drawing on various small group settings, and explore a number of socio-psychological mechanisms underlying collaborative irrationality, in particular groupthink. Specifically, I suggest that in collaborative cases there is what I call a spiralling of practical irrationality at play. I will argue that this is typically correlated and indeed partly due to biases in individual members' affect control and eventually the group's with whom the members identify. (shrink)

Any theory of practical irrationality necessarily imposes a division of labour between an account of the agent's intentional states and how these are formed, and an account of how these intentional states get applied in particular circumstances to choose a particular action. Nevertheless, questions that concern the content of the agent's beliefs and desires are still routinely lumped together with questions that deal with the way the agent chooses in the light of these beliefs and desires. This generates a (...) number of pseudoproblems. Seeks to clarify some of them, by considering the internal structure of decision theory. (shrink)

This valuable and interesting book attempts to discern the essential Freudian theses about the mind and to give them a cogent philosophical defense. Like many philosophers Gardner sees psychoanalytic explanation as continuous with folk psychology, though he holds that the latter needs considerable expansion in order to accommodate irrationality of the “Freudian” sorts.

Abstract:This study explores a phenomenon that has been shown to adversely affect managers’ decisions—competitive irrationality. Managers are irrationally competitive in their decisions when they focus on damaging the profits of competitors, rather than improving their own profit performance. Studies by Armstrong and Collopy (1996) and Griffith and Rust (1997) suggest that the phenomenon is common but not universal. We examine the question of why some individuals exhibit competitive irrationality when making decisions, while others do not by focusing on (...) four aspects of moral philosophy—deontological orientation, cognitive moral development, idealism, and relativism. Results suggest that individuals high in deontological orientation, high in cognitive moral development, high in idealism, and low in relativism will be less competitively irrational than those who are not. (shrink)

My primary aim in Irrationality: An Essay on Akrasia, Self-Deception, and Self-Control (1987) is to show that and how akratic action and self-deception are possible. The control that normal agents have over their actions and beliefs figures in the analysis and explanation of both phenomena. For that reason, an examination of self-control plays a central role in the book. In addition, I devote a chapter each to akratic belief and the explanation of intentional action. A precis of the book (...) will provide a useful context for the three essays that follow. (shrink)

The philosophical study of irrationality can yield interesting insights into the human mind. One provocative issue is self-defeating behaviours, i.e. behaviours that result in failure to achieve one’s apparent goals and ambitions. In this paper I consider a self-defeating behaviour called choking under pressure, explain why it should be considered irrational, and how it is best understood with reference to skills. Then I describe how choking can be explained without appeal to a purely Freudian subconscious or ‘sub-agents’ view of (...) mind. Finally, I will recommend an alternative way to understand self-defeating behaviour which comes from a synthesis of Peter Strawson’'s explanation of ‘self-reactive attitudes’, Mark Johnston’'s notion of ‘mental tropisms’, and revised Freudian descriptions of the causes of self-defeating behaviour. (shrink)

A recalcitrant emotion is one which conflicts with evaluative judgement. (A standard example is where someone is afraid of flying despite believing that it poses little or no danger.) The phenomenon of emotional recalcitrance raises an important problem for theories of emotion, namely to explain the sense in which recalcitrant emotions involve rational conflict. In this paper I argue that existing ‘neojudgementalist’ accounts of emotions fail to provide plausible explanations of the irrationality of recalcitrant emotions, and develop and defend (...) my own neojudgementalist account. On my view, recalcitrant emotions are irrational insofar as they incline the subject to accept an evaluative construal that the subject has already rejected. (shrink)

In this paper, I hope to show how a recent theory in the philosophy of mind concerning how we ‘read’ the minds of others – namely, Heal’s version of simulation theory – is consistent with the view that the kind of understanding we bring to bear on the irrational is different in kind from the way we understand one another in the course of everyday life. I shall attempt to show that Heal’s version of simulation theory (co-cognition) is to be (...) favoured over its rival ‘theory theories’ in the light of its accommodation of deeply irrational mental states. I claim that simulation theory preserves an asymmetry of psychological explanation which is not similarly preserved by a theory theory account, and I argue that this preservation of asymmetry is an advantage of Heal’s account. (shrink)

Approximately 48 hours ago, knowing that I would, Lord willing, be stand- ing here on this podium two days hence, I tapped http://www.fsf.org into Safari in order to begin learning at least something about the Free Software Movement (FSM). My online education has been augmented by many propo- nents of FSM in attendance at this conference, including Richard Stallman. What I have learned is that this movement is populated by a lot of seem- ingly well-intentioned people who are, at least (...) for the time being, utterly irrational, or worse. In wanting to point out why logic has heretofore been lost on the folks in question, I find within my command an embarrassment of riches. The five minutes at my disposal here is slim indeed, but nonetheless sufficient to reveal the untenability of FSM to those not gripped by an ide- ology: I shall mention here just a needle of fatal truth from the vast supply before me. (shrink)

Tieu, Matthew When we speak of rationality we generally speak of logic and reason in an abstract sense. However, one can also think of rationality in a practical sense. Practical rationality is our capacity to use reason and logic to form beliefs, arrive at decisions, and act in accordance with those beliefs and decisions. If we believe that we ought to do X then, all things being equal, we will do X. If we believe that we ought to refrain from (...) smoking, or drinking or having that extra serving of dessert, then all things being equal, the rational outcome from our subjective point of view is that we are moved to act in accordance with those beliefs. This is what defines humankind as rational agents. (shrink)

In the study of judgmental errors, surprisingly little thought is spent on what constitutes good and bad judgment. I call this simultaneous focus on errors and lack of analysis of what constitutes an error, the irrationality paradox. I illustrate the paradox by a dozen apparent fallacies; each can be logically deduced from the environmental structure and an unbiased mind.

I argue that propaganda does not characteristically interfere with individual rationality, but instead with group agency. Whereas it is often claimed that propaganda involves some sort of incitement to irrationality, I show that this is neither necessary nor sufficient for a case’s being one or propaganda. For instance, some propaganda constitutes evidence of the speaker’s power, or else of the risk and futility of opposing them, and there is nothing irrational about taking such evidence seriously. I outline an alternative (...) account of propaganda inspired by Hannah Arendt, on which propaganda characteristically creates or destroys group agency. One aspiring to control the public should have an interest in both creating and suppressing group agency, I argue, both because groups have capacities that individuals don’t, and because participation in group action can have a transformative effect upon the individual. Finally, I suggest that my characterization of propaganda suggests a vision of resistance to propaganda quite unlike the one that emerges from irrational-belief accounts, on which propaganda cannot be resisted by oneself. (shrink)

People tend to be biased and irrational about politics. Should this constrain what our normative theories of democracy can require? David Estlund argues that the answer is ‘no’. He contends that even if such facts show that the requirements of a normative theory are very unlikely to be met, this need not imply that the theory is unduly unrealistic. I argue that the application of Estlund’s argument to political irrationality depends on a false presupposition: mainly, that being rational about (...) politics is something people could easily do if they tried. Since the empirical evidence shows that being rational about politics is actually quite difficult, Estlund’s argument comes up short. Moreover, I argue that the argument cannot plausibly be extended to insulate normative theories of democracy from facts about political irrationality because of the need for constraints of realism to explain the crucial role that appeals to (reasonable) disagreement play within such theories. (shrink)

This paper focuses on Horwich's metaphilosophical interpretation of Wittgenstein. Specifically, it focuses on Horwich's charge that all philosophy is irrational. First, I coordinate the various aspects of Horwich's metaphilosophical program to make sense of his charge of irrationality against philosophy. Second, I argue that this metaphilosophical program misfires in two distinct ways. However, third, I close by calling attention to what I posit to be a critical insight of Horwich's account.

In a reconstruction of the theories of Freud and Klein, Sebastian Gardner asks: what causes irrationality, what must the mind be like for it to be irrational, to what extent does irrationality involve self-awareness, and what is the point of irrationality? Arguing that psychoanalytic theory provides the most penetrating answers to these questions, he rejects the widespread view of the unconscious as a 'second mind', in favour of a view of it as a source of inherently irrational (...) desires seeking expression through wish-fulfilment and phantasy. He meets scepticism about psychoanalytic explanation by exhibiting its continuity with everyday psychology. (shrink)

Irrationality remains a central issue in the philosophy of psychoanalysis. While some approaches in the philosophy of mind have argued that irrationality demands no special account, one of the central conceptual planks of psychoanalytic theory is the notion that irrational motivations have their origin in the dynamic unconscious. This article reviews recent attempts to account for the phenomenon of motivated irrationality, and argues that the problem of self-understanding will remain central to the philosophy of mind so long (...) as we accept the notion of rational agency. Any account of the mind which ignores or denies the appeal of first-person mental phenomena risks rendering itself unintelligible as a convincing account of the conscious subject. (shrink)

The strategy of this paper is to throw light on rational cognition and epistemic justification by examining irrationality. Epistemic irrationality is possible because we are reflexive cognizers, able to reason about and redirect some aspects of our own cognition. One consequence of this is that one cannot give a theory of epistemic rationality or epistemic justification without simultaneously giving a theory of practical rationality. A further consequence is that practical irrationality can affect our epistemic cognition. I argue (...) that practical irrationality derives from a general difficulty we have in overriding built-in shortcut modules aimed at making cognition more efficient, and all epistemic irrationality can be traced to this same source. A consequence of this account is that a theory of rationality is a descriptive theory, describing contingent features of a cognitive architecture, and it forms the core of a general theory of “voluntary” cognition — those aspects of cognition that are under voluntary control. It also follows that most of the so-called “rules for rationality” that philosophers have proposed are really just rules describing default (non- reflexive) cognition. It can be perfectly rational for a reflexive cognizer to break these rules. The “normativity” of rationality is a reflection of a built-in feature of reflexive cognition — when we detect violations of rationality, we have a tendency to desire to correct them. This is just another part of the descriptive theory of rationality. Although theories of rationality are descriptive, the structure of reflexive cognition gives philosophers, as human cognizers, privileged access to certain aspects of rational cognition. Philosophical theories of rationality are really scientific theories, based on inference to the best explanation, that take contingent introspective data as the evidence to be explained. (shrink)

Jon Stewart's continued criticism of the inconsistency and irrationality of the American media, the notion of truthiness has relevance for any fan of The Daily Show. This chapter looks a little bit more closely at two notions of truthiness. Focusing on the first sense, it draws some parallels between truthiness and paradigm cases of motivated epistemic irrationality like wishful thinking and self‐deception. Then, it turns to the second sense to see if relying on our guts in the way (...) Colbert suggests might sometimes be rational. (shrink)

Belief polarization is said to occur when two people respond to the same evidence by updating their beliefs in opposite directions. This response is considered to be “irrational” because it involves contrary updating, a form of belief updating that appears to violate normatively optimal responding, as for example dictated by Bayes' theorem. In light of much evidence that people are capable of normatively optimal behavior, belief polarization presents a puzzling exception. We show that Bayesian networks, or Bayes nets, can simulate (...) rational belief updating. When fit to experimental data, Bayes nets can help identify the factors that contribute to polarization. We present a study into belief updating concerning the reality of climate change in response to information about the scientific consensus on anthropogenic global warming. The study used representative samples of Australian and U.S. participants. Among Australians, consensus information partially neutralized the influence of worldview, with free-market supporters showing a greater increase in acceptance of human-caused global warming relative to free-market opponents. In contrast, while consensus information overall had a positive effect on perceived consensus among U.S. participants, there was a reduction in perceived consensus and acceptance of human-caused global warming for strong supporters of unregulated free markets. Fitting a Bayes net model to the data indicated that under a Bayesian framework, free-market support is a significant driver of beliefs about climate change and trust in climate scientists. Further, active distrust of climate scientists among a small number of U.S. conservatives drives contrary updating in response to consensus information among this particular group. (shrink)

Let it be granted that Buddhism has, e.g., in its logical literature, detailed canons and explicit rules of right reason that, amongst other things, ban inconsistency as irrational. This is the normative dimension of how people should think according to many major Buddhist authors. But do important Buddhist writers ever recognize any interesting or substantive role for inconsistency and forms of irrationality in their account of how people actually do think and act? The article takes as its point of (...) departure a recurring theme in the writings of the 8th Century Indian Buddhist thinker, Śāntideva, who subjects his own behaviour and thought to minute scrutiny in argumentation with himself, only to be puzzled at his own seemingly irrational persistence in ways of thinking that he knows to be wrong and actions that he knows to be worse courses. The Buddhist’s situation is profitably comparable to issues of akrasia, weakness of the will, that are taken up by Plato, Aristotle and many modern philosophers, including notably Donald Davidson and David Wiggins. (shrink)

This paper argues that the well-established fact of political irrationality imposes substantial constraints on how governments may combat the threat of political misinformation. Though attempts at regulating misinformation are becoming increasingly popular, both among policymakers and theorists, I intend to show that, for a wide range of anti-misinformation interventions (collectively termed “debunking” and “source labeling”), these attempts ought to be abandoned. My argument relies primarily on the fact that most people process politically-relevant information in biased and motivated ways. Since (...) debunking or factual correction of politically relevant misinformation (as well as source labeling) themselves consist of providing politically-relevant information, they are also very likely to be processed in irrational ways. This makes it extremely difficult to effectively correct people’s political beliefs and political information processing. Since governments should not pursue policies likely to be futile, they should refrain from mandating such interventions. My conclusion is of relevance to considerable literature in digital ethics of misinformation. It shows that many celebrated works in the field ignore political irrationality and fail to consider its implications. (shrink)

There are at least three basic phenomena that philosophers traditionally classify as paradigm cases of irrationality. In the first two cases, wishful thinking and self-deception, a person wants something to be true and therefore ignores certain relevant facts about the situation, making it appear to herself that it is, in fact, true. The third case, weakness of will, involves a person undertaking a certain action, despite taking herself to have an all-things-considered better reason not to do so. While I (...) think that Stephen Colbert's notion of "truthiness" might be able to fit the mold of each of these three kinds of irrationality, it applies most directly to cases of wishful thinking and self-deception — and it’s these two types of irrationality that I discuss extensively in this paper. As we will see, there are some troubling philosophical problems that arise regarding phenomena like self-deception. But we can use the concept of truthiness to show how these “paradoxes of irrationality” may be resolved without denying the fundamental irrationality of truthiness itself. -/- An earlier version of this paper ("Truthiness, Self-Deception, and Intuitive Knowledge") appeared in "The Daily Show and Philosophy" (2007). (shrink)

This paper inquires into the conceptual nature of self-deception. I shall afford a theory which links SD to wishful thinking. First I present two rival models for the analysis of SD, and suggest reasons why the interpersonal model is flawed. It is necessary for supporters of this model to work out a strategy that avoids the ascription of inconsistency to the self-deceiver in order to fulfill the requirements of the charity principle. Some objections to the compartmentalization strategy are put forward, (...) and a motivational theory is advanced. This theory diverges from Mele 's account of SD in that it establishes as a necessary condition for SD the existence of a causal link between a desire and a belief unacknowledged by the self-deceived subject, who is unaware also of the counterevidential nature of his belief, allows only 'weak SD' cases and offers methodological reasons against the seemingly intentional and dissociative nature of SD and stresses the deception-SD asymmetry. /// El presente artículo intenta investigar la naturaleza conceptual del autoengaño. Presentaré dos modelos rivales de análisis y ofreceré razones contra la teoría interpersonal frente a la motivacional, alegando las dificultades que comporta seguir alguna de sus estrategias de compartimentación para evitar la atribución de inconsistencia simple al sujeto autoengañado. Defenderé una teoría que vincula el autoengaño con la creencia desiderativa. Se trata de una teoría motivacional que difiere de la de Mele en que establece como condición necesaria para el autoengaño que se dé una relación causal entre el deseo y la creencia pertinentes, relación cuya existencia desconoce el sujeto, que ignora también el grado en que su creencia es incompatible con los datos empíricamente disponibles, acepta sólo casos de autoengaño débil y ofrece razones metodológicas contra la supuesta naturaleza intencional y disociativa del autoengaño y subraya la asimetría autoengaño/engaño. (shrink)

Although seemingly irrational choice abounds, the rules governing these mis‐steps that might provide hints about the factors limiting normative behavior are unclear. We consider three experimental tasks, which probe different aspects of non‐normative choice under uncertainty. We argue for systematic statistical, algorithmic, and implementational sources of irrationality, including incomplete evaluation of long‐run future utilities, Pavlovian actions, and habits, together with computational and statistical noise and uncertainty. We suggest structural and functional adaptations that minimize their maladaptive effects.

The movements and protests of 1968 worldwide criticized the traditional idea of normality. From the 1970s onwards, psychiatry and antipsychiatry became an ideological battleground centered on the boundaries between normality and madness. In this scenario, characterized by a deep cultural and political transformation within the Left, the traditional concept of rationality and its very connection with irrationality was called into question. As a consequence, the very ideal of reason was questioned. This paper will explore the debate on rationality, (...) class='Hi'>irrationality and irrationalism within the so-called anti-institutional psychiatry and its reception in the Italian New Left during the second half of the 1970s. (shrink)

This paper critically explores the ethical dimensions of Behavioral Public Policy (BPP), a domain grounded in the understanding that human rationality is bounded and that this limitation often leads to behaviors deemed irrational. By applying the behavioral lens, which posits that people operate under bounded rationality, BPP aims to craft interventions that safeguard individuals against their biases. However, this approach raises significant ethical concerns, both in the scientific underpinnings of BPP and its application through policy interventions. Accordingly, this paper examines (...) two distinct ethical dimensions of BPP, both as a scientific discipline and through its intervention methodologies. The analysis of the first dimension argues that, viewing bounded rationality as only instrumental in decision-making processes, risks oversimplifying ethical complexities. Such simplification may ignore the moral and value-based rationalities underlying decisions, potentially misattributing instances of immorality and akrasia (the failure to act according to one's judgment) to mere deficiencies in rational thinking. Secondly, the paper examines the impact of BPP on moral behavior and character development, addressing ethical concerns like the evidentiary basis of BPP research, the bounded rationality of choice architects themselves, and the morality of behavior changes induced by policy. Overall, this article provides a much-needed examination of the moral considerations associated with behavioral strategies in public policy and its epistemological foundations, contributing to a more comprehensive understanding of their ethical implications . (shrink)