Briefly traces the life of the eighteenth century German philosopher, discusses his major ideas, and looks at the relevance of his work today.

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.

Although much human action serves as proof that irrational behavior is remarkably common, certain forms of irrationality--most notably, incontinent action and self-deception--pose such difficult theoretical problems that philosophers have rejected them as logically or psychologically impossible. Here, Mele shows that, and how, incontinent action and self-deception are indeed possible. Drawing upon recent experimental work in the psychology of action and inference, he advances naturalized explanations of akratic action and self-deception while resolving the paradoxes around which the philosophical literature revolves. In (...) addition, he defends an account of self-control, argues that "strict" akratic action is an insurmountable obstacle for traditional belief-desire models of action-explanation, and explains how a considerably modified model accommodates action of this sort. (shrink)

The symposium for which this contribution was prepared invited reflection on the role of the Lvov–Warsaw School not just within the areas which it mainly touched, namely philosophy and logic, but in the wider European cultural context. It is natural to interpret this context as being confined historically to the School’s heyday, the period between Twardowski’s appointment as professor extraordinarius in Lvov in 1895, and the German attack on Poland in 1939. There is of course much to be said about (...) the figures, works, views, attitudes and influences of the School in this period, as well as its partial continuation after 1945 and its precursors and preparation in Imperial Austria. Many of those present at the symposium have contributed decisively to this work of historical exposition and assessment. (shrink)

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)

A reprint of Popper and After: Four Modern Irrationalists.

This paper has two aims, as an exposition of Jürgen Habermas's response to the work of Michel Foucault, and to engage in and assess this debate between two influential contemporary schools of Continental philosophy. Habermas locates Foucault's project in the history of several attempts at a totalizing critique of reason, attempts which are trapped in a performative self‐contradiction. Habermas also argues that Foucault is still caught up in the conceptual straitjacket of the philosophy of the subject which his theory was (...) meant to overcome. He shows that Foucault's central notion of power is used in two different and ultimately irreconcilable ways ‐ as a transcendental as well as an empirical concept. Much of Habermas's critique is justified and could, indeed, be extended to Foucault's anti‐realist relativism, but Habermas's own defence of rationalism is not without difficulties of its own. Thus his notion of knowledge‐guiding interests commits him to a form of anti‐realism and a transcendental concept of instrumental power which is almost as problematic in its consequences as the anti‐realism of Foucault. (shrink)

Commentators often construe Foucault as an anti-Enlightenment thinker; much of this criticism assumes that Foucault inherits early German Romanticism in some sense. This essay examines these claims by assessing the role the German Romantics play in Foucault’s work, both early and late. After a brief consideration of the meaning of the term “Romanticism,” the essay examines the role that language and literature plays in Foucault early texts before examining the place of self-formation or Bildung in his later work. I conclude (...) that examining the relationship between Foucault and the German Romantics can help us better understand Foucault’s texts and thereby avoid what Foucault terms the “blackmail of the Enlightenment,” the idea that one must be either for or against Enlightenment ideals rather than critically interrogating them. (shrink)

O objetivo último deste artigo é demostrar a atualidade da crítica de Hegel ao irracionalismo. A hipótese interpretativa a ser demonstrada é que o conceito moderno de irracional, cuja origem se encontra na linguagem matemática, está diretamente relacionado com o problema do infinito. Para melhor desenvolver essa questão, pretendo mostrar o diálogo de Hegel com Schelling, cujo diagnóstico sobre o problema da oposição entre finito e infinito nos sistemas filosóficos até sua época muito influenciou a própria concepção de filosofia e (...) de razão do jovem Hegel. (shrink)

The phenomenon of rationalism and irrationalism, contextually related to the transformation methodology and the social function of modern (post-industrial) science – social verification, interpretation and knowledge, etc., are analyzes.

I shall elaborate more on the idea of anti-irrationalism proposed by the Polish analytic philosopher Kazimierz Ajdukiewicz, a prominent member of the Lvov-Warsaw School of philosophy and logic. In my reading, anti-irrationalism stands in opposition not only to overt irrationalism, which is made clear by the term itself, but also to all forms of rationalism that tip toward something like worship of reason. Having characterized anti-irrationalism as it originally appeared in Ajdukiewicz’s works, I shall propose a (...) certain reformulation of it, so as to capture a broader philosophical legacy in Poland, primarily, yet not exclusively the Lvov-Warsaw School. (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)

In Sleeping with Extra-Terrestrials , Wendy Kaminer argues that we are a society intoxicated by the irrational: religion, spirituality, and popular therapies threaten to replace rational thought with supernaturalism and impassioned but unexamined personal testimony. Ranging from our fascination with angels, aliens, and near- death experiences to the rise of junk science, the recovery movement, and the digital culture, Kaminer points out the amusing and ominous effects of our deference to spiritual authorities and resistance to critical thinking. She questions conventional (...) wisdom about the association of religious belief with virtue, identifying the sectarianism of efforts to establish religion in the public square. With both wit and empathy, Kaminer takes on what many people hold sacred. Kaminer is an eloquent and incisive critic and rationalist living in a superstitious, evangelical age. In Sleeping with Extra-Terrestrials she challenges us to exercise skepticism, reason, and irreverence and to appreciate the pleasures of free inquiry. (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)

INTRODUCTION Irrationalism: Lukacs and the Marxist View of Reason At the very least, Karl Marx and Marxism are committed to a form of con textual ism, ...

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)

* [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.

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)

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)

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)

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)

According to many accounts, propaganda is a variety of politically significant signal with a distinctive connection to irrationality. This irrationality may be theoretical, or practical; it may be supposed that propaganda characteristically elicits this irrationality anew, or else that it exploits its prior existence. The view that encompasses such accounts we will call irrationalism. This essay presents two classes of propaganda that do not bear the sort of connection to irrationality posited by the irrationalist: hard propaganda and propaganda by (...) the deed. Faced with these counterexamples, some irrationalists will offer their account of propaganda as a refinement of the folk concept rather than as an attempt to capture all of its applications. The author argues that any refinement of the concept of propaganda must allow the concept to remain essentially political, and that the irrationalist refinement fails to meet this condition. (shrink)

The article examines the concept of anti-irrationalism coined by the members of the Lvov-Warsaw School. The term “anti-irrationalism” comes from Ajdukiewicz, who used it to define the specificity of the School as a whole. For Ajdukiewicz, anti-irrationalism, which values cognition with intersubjective qualities, is contrasted with irrationalism. The article discusses Twardowski’s tripartite division of beliefs into rational, “irrational,” and “non-rational.” Against this background, the article explores Dąmbska’s view on irrationalism, which is divided by her into (...) several subcategories.Finally, the author considers the question of anti-irrationalism as a metaphilosophical standpoint in the context of the question of a worldview. (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)

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)

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)

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)

This article introduces identity-based irrationality, a form of emotional irrationality that arises when the evaluations eliciting an emotion conflict with a person's deep, identity-constituting beliefs and desires. While the goal-directed theory (GDT) of emotions accounts for apparent (Type-1) and theoretical (Type-2) irrationality, it does not capture cases where emotions are structurally inconsistent with the agent's deep self. Drawing on theories of the deep self, identity-based irrationality is characterized as a conflict between circumstantial evaluative hierarchies operative in the moment and more (...) enduring identity hierarchies that organize the person's commitments. Through illustrative cases, the paper argues that this form of irrationality is neither merely apparent nor grounded in erroneous representations of the situation, but instead reflects an evaluative structural irrationality. It concludes by assessing three ways the GDT might accommodate such conflicts and argues that incorporating identity-level structure is necessary for a complete account of emotional irrationality. (shrink)

The author believes that large‐scale rationality on the part of the interpretant is essential to his interpretability, and therefore, in his view, to her having a mind. How, then are cases of irrationality, such as akrasia or self‐deception, judged by the interpretant's own standards, possible? He proposes that, in order to resolve the apparent paradoxes, one must distinguish between accepting a contradictory proposition and accepting separately each of two contradictory propositions, which are held apart, which in turn requires to conceive (...) of the mind as containing a number of semi‐independent structures of interlocking beliefs, desires, emotions, memories, and other mental states. (shrink)

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)

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)

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)

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)

From sex and music to religion and politics, a history of irrationality and the ways in which it has always been with us—and always will be In this sweeping account of irrationality from antiquity to the rise of Twitter mobs and the election of Donald Trump, Justin Smith argues that irrationality makes up the greater part of human life and history. Ranging across philosophy, politics, and current events, he shows that, throughout history, every triumph of reason has been temporary and (...) reversible, and that rational schemes often result in their polar opposite. Illuminating unreason at a moment when the world appears to have gone mad again, Irrationality is timely, provocative, and fascinating. (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)

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)

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)

José Romano Muñoz defends Antonio Caso’s “intuitionism” against Samuel Ramos’s criticisms, which Ramos had published in the same journal (_Ulysses_) the previous year. In his dismissal, Ramos argues that Caso’s intuitionism is merely a form of irrationalism that has no place in philosophy as a rational practice. In Caso’s defense, Muñoz proposes that intuition has epistemological value, that it alone can penetrate the reality of things that are hidden by concepts and obscured by perception, and that Caso’s philosophy shows (...) us how this is so. This article is both a defense of philosophy as traditionally conceived—as rational and critical—and an attempt to broaden its scope to include invention, intuition, and instinct. A true critical philosophy cannot rely merely on reason as its source, but must involve and depend on intuition and the non-rational clarity that this brings. (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.

This paper presents a new argument against the view that structural (or attitude-based) irrationality consists in failing to respond correctly to normative reasons. According to this view, a pattern of attitudes is structurally irrational if and only if that pattern guarantees that one has at least one attitude one ought not to have. I argue that this ought-violation view comes with three indispensable theoretical commitments. These commitments concern various relationships between normative permissions and oughts that govern beliefs and intentions, and (...) they may appear plausible when viewed in isolation. However, once they are collectively conjoined, they imply oughts that are incompatible with the ought-violation view of structural irrationality. In particular, on the ought-violation view, these oughts entail that you are necessarily structurally irrational whenever [you intend to p] and [you believe that it is not the case that you ought to p]. However, since you can rationally intend things that you believe to be normatively optional (e.g. merely permitted or supererogatory), the ought-violation view faces the following dilemma: it must either deny one of its essential commitments or accept as irrational a set of attitudes that are clearly not. Either way suffices to show that the ought-violation view cannot serve as a correct analysis of structural irrationality. (shrink)