In the international bestseller, Thinking, Fast and Slow, Daniel Kahneman, the renowned psychologist and winner of the Nobel Prize in Economics, takes us on a groundbreaking tour of the mind and explains the two systems that drive the way we think. System 1 is fast, intuitive, and emotional; System 2 is slower, more deliberative, and more logical. The impact of overconfidence on corporate strategies, the difficulties of predicting what will make us happy in the future, the (...) profound effect of cognitive biases on everything from playing the stock market to planning our next vacation—each of these can be understood only by knowing how the two systems shape our judgments and decisions. -/- Engaging the reader in a lively conversation about how we think, Kahneman reveals where we can and cannot trust our intuitions and how we can tap into the benefits of slow thinking. He offers practical and enlightening insights into how choices are made in both our business and our personal lives—and how we can use different techniques to guard against the mental glitches that often get us into trouble. Winner of the National Academy of Sciences Best Book Award and the Los Angeles Times Book Prize and selected by The New York Times Book Review as one of the ten best books of 2011, Thinking, Fast and Slow is destined to be a classic. (shrink)

[Multiple authors] In this paper, we propose a general architecture that is based on fast/slow solvers and a metacognitive component. We then present experimental results on the behavior of an instance of this architecture, for AI systems that make decisions about navigating in a constrained environment. We show how combining the fast and slow decision modalities allows the system to evolve over time and gradually pass from slow to fast thinking with enough experience, (...) and that this greatly helps in decision quality, resource consumption, and efficiency. (shrink)

We present a framework for epistemic logic, modeling the logical aspects of System 1 and System 2 cognitive processes, as per dual process theories of reasoning. The framework combines non-normal worlds semantics with the techniques of Dynamic Epistemic Logic. It models non-logically-omniscient, but moderately rational agents: their System 1 makes fast sense of incoming information by integrating it on the basis of their background knowledge and beliefs. Their System 2 allows them to slowly, step-wise unpack some of the logical (...) consequences of such knowledge and beliefs, by paying a cognitive cost. The framework is applied to three instances of limited rationality, widely discussed in cognitive psychology: Stereotypical Thinking, the Framing Effect, and the Anchoring Effect. (shrink)

Human reasoning is often conceived as an interplay between a more intuitive and deliberate thought process. In the last 50 years, influential fast-and-slow dual-process models that capitalize on this distinction have been used to account for numerous phenomena – from logical reasoning biases, over prosocial behavior, to moral decision making. The present paper clarifies that despite the popularity, critical assumptions are poorly conceived. My critique focuses on two interconnected foundational issues: the exclusivity and switch feature. The exclusivity feature (...) refers to the tendency to conceive intuition and deliberation as generating unique responses such that one type of response is assumed to be beyond the capability of the fast-intuitive processing mode. I review the empirical evidence in key fields and show that there is no solid ground for such exclusivity. The switch feature concerns the mechanism by which a reasoner can decide to shift between more intuitive and deliberate processing. I present an overview of leading switch accounts and show that they are conceptually problematic – precisely because they presuppose exclusivity. I build on these insights to sketch the groundwork for a more viable dual-process architecture and illustrate how it can set a new research agenda to advance the field in the coming years. (shrink)

We agree with the author's working model, but we suggest that (a) the classical distinction between fast and slow processes as separable processes can be softened, and (b) human performance might result from an interplay between fast and slow processing and these processes may be mediated by systems that evolve to satisfy the need for operation in a complex environment.

No doubt older work in the dual-process tradition overemphasized the importance and frequency of the override function, and the working model in this target article provides a useful corrective. The attempt to motivate the model using the so-called exclusivity assumption is unnecessary, because no recent dual-process model in the reasoning literature has rested strongly on this assumption.

Multiple Authors - please see paper attached. -/- AI systems have seen dramatic advancement in recent years, bringing many applications that pervade our everyday life. However, we are still mostly seeing instances of narrow AI: many of these recent developments are typically focused on a very limited set of competencies and goals, e.g., image interpretation, natural language processing, classification, prediction, and many others. We argue that a better study of the mechanisms that allow humans to have these capabilities can help (...) us understand how to imbue AI systems with these competencies. We focus especially on D. Kahneman’s theory of thinking fast and slow , and we propose a multi-agent AI architecture (called SOFAI, for SlOw and Fast AI) where incoming problems are solved by either system 1 (or "fast") agents (also called "solvers"), that react by exploiting only past experience, or by system 2 (or "slow") agents, that are deliberately activated when there is the need to reason and search for optimal solutions beyond what is expected from the system 1 agent. (shrink)

In recent research, dual-process theories of cognition have been the primary model for explaining moral judgment and reasoning. These theories understand moral thinking in terms of two separate domains: one deliberate and analytic, the other quick and instinctive. -/- This book presents a new theory of the philosophy and cognitive science of moral judgment. Hanno Sauer develops and defends an account of "triple-process" moral psychology, arguing that moral thinking and reasoning are only insufficiently understood when described in terms (...) of a quick but intuitive and a slow but rational type of cognition. This approach severely underestimates the importance and impact of dispositions to initiate and engage in critical thinking – the cognitive resource in charge of counteracting my-side bias, closed-mindedness, dogmatism, and breakdowns of self-control. Moral cognition is based, not on emotion and reason, but on an integrated network of intuitive, algorithmic and reflective thinking. -/- Moral Thinking, Fast and Slow will be of great interest to philosophers and students of ethics, philosophy of psychology and cognitive science. (shrink)

De Neys's incisive critique of empirical and theoretical research on the exclusivity feature underscores the depth of the challenge of explaining the interplay of fast and slow processes. We argue that a closer look at research on mindreading reveals abundant evidence for the exclusivity feature – as well as methodological and theoretical perspectives that could inform research on fast and slow thinking.

Daniel Kahneman's book Thinking, Fast and Slow (2011) has had a worldwide impact. The book's insights are profound and have changed the thinking of both decision scientists and general audiences about how choices are made. Kahneman, however, claims that standard utility theory cannot explain these insights because it 1) lacks “reference points” from which gains and losses can be measured, 2) does not predict loss aversion, and 3) assumes preferences are stable (amid supposed counter evidence). These (...) alleged failures of utility theory are what led Kahneman and Tversky (1979, 1991) to develop prospect theory. This brief article shows that a close reading of Thinking, Fast and Slow reveals fundamental oversights in these criticisms. Not only does loss aversion arise naturally within utility theory for rational economic agents with stable preferences, but the very measurements of gains and losses rely directly upon reference points. Rather than overturning the insights of prospect theory, proper use of utility theory and its indifference curve representations reveals these behavioral insights and places them within the sturdier, longer- established framework of neoclassical microeconomic theory. (shrink)

The liar paradox is widely conceived as a problem for logic and semantics. On the basis of empirical studies presented here, we suggest that there is an underappreciated psychological dimension to the liar paradox and related problems, conceived as a problem for human thinkers. Specific findings suggest that how one interprets the liar sentence and similar paradoxes can vary in relation to one’s capacity for logical and reflective thought, acceptance of certain logical principles, and degree of philosophical training, but also (...) as a function of factors such as religious belief, gender, and whether the problem is treated as theoretical or practical. Though preliminary, these findings suggest that one reason the liar paradox resists a final resolution is that it engages both aspects described by so-called dual process accounts of human cognition. (shrink)

Probabilistic reasoning is heavily investigated in decision research. Violations of probability theory have been demonstrated numerously, for instance, the tendency to overestimate the joint probab...

Review of "Thinking, Fast and Slow" by Daniel Kahneman.

Seeing is not believing, contrary to what popular idioms might claim. But what exactly is the difference? This question is the focus of The Border Between Seeing and Thinking, the long-awaited monograph by philosopher Ned Block.

Several studies suggest that decisions made in a foreign language are more rational. The authors imply that when thinking in a language which is not our native tongue, analytical, slow, deep-thinking is activated. The question that underlies the present article is whether this is a characteristic of every mental operation in the foreign medium. Studies carried out by Costa et al., Geipel et al. and Hadjichristidis et al. suggest the issue is much more complex than it may (...) seem. The answer to the question above was sought through a study in which 84 Polish advanced users of English as a foreign language were asked to solve mathematical problems from the Cognitive Reflection Test. Initially the subjects were randomly assigned to two groups, who subsequently solved the problems in Polish and in English. The article presents the results, discusses them and arrives at a number of conclusions as well as implications for further research. (shrink)

In the Hastings Center Report's July‐August 2022 issue, articles by Jessica Amalraj and Kavita Shah Arora and by Inmaculada de Melo‐Martín take up very different concerns under the broad topic of reproductive ethics and public policy. Amalraj and Arora call for public deliberation and consensus building to revise a Medicaid sterilization policy, and de Melo‐Martín argues that social resources should not be used to support reproductive embryo editing but should instead be put toward pre‐ and postnatal interventions that, compared to (...) embryonic genome editing, can help far more people have children who are healthy and genetically related to them. The third article, by Bryan Sisk and James M. DuBois, offers a framework to guide clinicians in their everyday communication with patients and their family members. Elsewhere in the issue are arguments about the responsibilities health care organizations have to address large societal problems affecting well‐being. (shrink)

In _Selving: A Relational Theory of Self Organization_, Irene Fast invokes the basic distinction between the self as "me" and the self as "I" in order to develop a contemporary theory of the self as subject. In a return to Freud's clinical finding that all psychological processes are personally motivated, she elaborates a notion of the "I-self" that is intrinsically dynamic and relational. Within this conception, our perceiving, thinking, feeling, and acting are not what our self does; rather, (...) they are what our self is. According to Fast, the basic unit of the dynamic I-self --of selving --is a scheme of personally motivated interaction between self and nonself. This notion, which comprehends development as a product of integration and differentiation among discrete I-schemes, provides a radically new framework for understanding those dynamic phenomena that Freud included within his structural model of the mind and that contemporary theorists have addressed within object relational perspectives. Via the notion of selving, Fast likewise brings fresh insight to a host of issues that have engaged psychoanalysts and developmental psychologists in recent years. These topics include the place of bodily experience in a relational model of mind, the organization of self as simultaneously individual and relational, the formulation of a constructivist model of psychic structure, among others. _Selving_ is not only a lucid demonstration of how a relational theory of self can reorder clinical observations in conceptually and therapeutically illuminating ways. It is also a convincing demonstration of how a constructivist model emphasizing the interactive nature of meaning-making provides bridges to Piagetian theory, developmental research, and observational infancy studies. (shrink)

There exists a fundamental convergence between some major trends of modern epistemology—as outlined, for instance, by Filmer Northrop and Henry Margenau—and the theories actually developed within sciences of the human mind where two types of thought—one implicit and, the other, explicit—tend to refer to two different lines of development. Moreover, these theories can find in the psychology of Lev Vygotsky some seminal hypotheses of a major importance. In order to highlight this convergence, we parallel the role played by structured conceptual (...) systems in Vygotsky’s conception of intellectual development and Northrop’s epistemology. We show how these conceptual systems account for the notion of causality and can explain the success of scientific thought, i.e. its possible match with the real world, while this match falsely justified an overall biological model of intellectual development in Jean Piaget’s work. We conclude that dual process theorists should no longer neglect cognitive tools, and especially conceptual systems, which underpin the awareness and mastery of thought that are characteristic of type 2 processes. This whole analysis leads us to maintain that human psychology is not characterized in the first instance by a need to act, but a quest for meaning. (shrink)

Stress can make the comprehension of complex information more difficult, yet patients and their family members often must receive, process, and make decisions based on new, complex information presented in unfamiliar and stressful clinical environments such as the intensive care unit. Families may be asked to make decisions regarding the donation of organs and genetic tissue soon after the death of a loved one, based on new, complex information, under tight time limits. How can we assist patients and families to (...) better process complex information while under stress, and make better decisions for themselves or a loved one? (shrink)

Researchers have debated whether there is a relationship between a statement’s truth-value and whether it counts as a lie. One view is that a statement being objectively false is essential to whether it counts as a lie; the opposing view is that a statement’s objective truth-value is inessential to whether it counts as a lie. We report five behavioral experiments that use a novel range of behavioral measures to address this issue. In each case, we found evidence of a relationship. (...) A statement’s truth-value affects how quickly people judge whether it is a lie. When people consider the matter carefully and are told that they might need to justify their answer, they are more likely to categorize a statement as a lie when it is false than when it is true. When given options that inhibit perspective-taking, people tend to not categorize deceptively motivated statements as lies when they are true, even though they still categorize them as lies when they are false. Categorizing a speaker as “lying” leads people to strongly infer that the speaker’s statement is false. People are more likely to spontaneously categorize a statement as a lie when it is false than when it is true. We discuss four different interpretations of relevant findings to date. At present, the best supported interpretation might be that the ordinary lying concept is a prototype concept, with falsity being a centrally important element of the prototypical lie. (shrink)

Fairness, the notion that people deserve or have rights to certain resources or kinds of treatment, is a fundamental dimension of moral cognition. Drawing on recent evidence from economics, psychology, and neuroscience, we ask whether self-interest is always intuitive, requiring self-control to override with reasoning-based fairness concerns, or whether fairness itself can be intuitive. While we find strong support for rejecting the notion that self-interest is always intuitive, the literature has reached conflicting conclusions about the neurocognitive systems underpinning fairness. We (...) propose that this disagreement can largely be resolved in light of an extended Social Heuristics Hypothesis. Divergent findings may be attributed to the interpretation of behavioral effects of ego depletion or neurostimulation, reverse inference from brain activity to the underlying psychological process, and insensitivity to social context and inter-individual differences. To better dissect the neurobiological basis of fairness, we outline how future research should embrace cross-disciplinary methods that combine psychological manipulations with neuroimaging, and that can probe inter-individual, and cultural heterogeneities. (shrink)

Our understanding of dual-process models of cognition may benefit from a consideration of language processing, as language comprehension involves fast and slow processes analogous to those used for reasoning. More specifically, De Neys's criticisms of the exclusivity assumption and the fast-to-slow switch mechanism are consistent with findings from the literature on the construction and revision of linguistic interpretations.

Over the last several decades, slow travel has been garnering increasing attention, especially with regards to the climate crisis and the many harms that result from global tourism. The defenders of slow travel claim that traveling slowly benefits not only the environment but also the local communities most affected by tourism, as well as the travellers themselves. This kind of defence, while seeming to be intuitively correct, is missing a sustained argument that explains why this is the case. (...) In this paper, we fill this explanatory gap by relying on philosopher Albert Borgmann’s theory of devices and focal practices to provide a theoretical ground for the claims made about traveling fast and slow. (shrink)

Recent reasoning accounts suggest that people can process elementary logical principles intuitively. These controversial “logical intuitions” are believed to result from a learning process in which developing reasoners automatize their application. To verify this automatization hypothesis, we contrasted the reasoning performance of younger (7th grade) and older (12th grade) reasoners with a two-response paradigm. Participants initially responded with the first intuitive response that came to mind and subsequently were allowed to deliberate on classic “bias” problems (base-rate problems and syllogisms). Results (...) showed that in addition to showing less deliberate correction of an initial erroneous response, younger reasoners were specifically less likely to generate the correct response from the outset. The findings lend credence to the role of a developmental automatization process and indicate that developmental improvements in reasoning accuracy are at least partially driven by an improvement in the accuracy of our intuitions. (shrink)

The resurgence of everyday cycling in the last decades across Western cities has engendered lively debates concerning its increasingly relevant role in innovating urban movement toward more sustainable futures. Most cities are building provisions and drafting plans to become more "cycle friendly," and "cycling indexes" are regularly used to rank the best-performing of them, while the World Health Organization has developed a health economic assessment tool to assist evidence-based decision making for cycling investments.1 Meanwhile, the number of cyclists in certain (...) areas of New York has tripled in the past ten years, the number of people cycling to work in London has doubled since 2001, and Paris, the first big... (shrink)

Artificial intelligence (AI) shares many generalizability challenges with psychology. But the fields publish differently. AI publishes fast, through rapid preprint sharing and conference publications. Psychology publishes more slowly, but creates integrative reviews and meta-analyses. We discuss the complementary advantages of each strategy, and suggest that incorporating both types of strategies could lead to more generalizable research in both fields.

Over the past 40 years, the sense of place concept has been well-established across a range of applications and settings; however, most theoretical developments have ‘privileged the slow’. Evidence suggests that place attachments and place meanings are slow to evolve, sometimes not matching material or social reality (lag effects), and also tending to inhibit change. Here we present some key blind spots in sense of place scholarship and then suggest how a reconsideration of sense of place as ‘ (...) class='Hi'>fast’ and ‘slow’ could fill them. By this, we mean how direct and immediate perception-action processes presented in affordance theory (resulting in immediately perceived place meanings) can complement slower forms of social construction presented in sense of place scholarship. Key blind spots are that sense of place scholarship: 1) rarely accounts for sensory or immediately perceived meanings; 2) pays little attention to how place meanings are the joint product of attributes of environmental features and the attributes of the individual; and; 3) assumes that the relationship between place attachment and behaviour is linear and not constituted in dynamic relations among mind, culture and environment.. We show how these blind spots can begin to be addressed by reviewing key insights from affordance theory, and through the presentation of applied examples. We discuss future empirical research directions in terms of: 1) how sense of place is both perceived and socially constructed; 2) whether perceived and socially constructed dimensions of place can relate to one another when perceived meanings become unsituated, and; 3) how place attachment may change over different stages of the life course based upon dynamic relationships between processes of perception-action and social construction. We conclude with insights into how processes of perception-action and social construction could be included in the design and management of urban landscapes. (shrink)

In an age of internet scrolling and skimming, where concentration and attention are fast becoming endangered skills, it is timely to think about the act of reading and the many forms that it can take. Slow Philosophy: Reading Against the Institution makes the case for thinking about reading in philosophical terms. Boulous Walker argues that philosophy involves the patient work of thought; in this it resembles the work of art, which invites and implores us to take our (...) time and to engage with the world. At its best, philosophy teaches us to read slowly; in fact, philosophy is the art of reading slowly – and this inevitably clashes with many of our current institutional practices and demands. Slow reading shares something in common with contemporary social movements, such as that devoted to slow food; it offers us ways to engage the complexity of the world. With the help of writers as diverse as Nietzsche, Wittgenstein, Woolf, Adorno, Levinas, Critchley, Beauvoir, Le Dœuff, Irigaray, Cixous, Weil, and others, Boulous Walker offers a foundational text in the emerging field of slow philosophy, one that explores the importance of unhurried time in establishing our institutional encounters with complex and demanding works. (shrink)

Wishful thinking (WT) of Israeli voters was measured in the unprecedented event of three failing national elections repeated within one year. WT is considered as Type 1 fast/intuitive thinking leading to bias. A novel method for measuring WT – including relevant campaign information and distinguishing between “WT for self” and “WT for others” – was introduced. WT components of voters in leading and trailing camps were compared across the three elections to examine whether patterns would be consistent (...) or haphazard. Despite the presumed uncontrolled nature of WT, the patterns were not haphazard but rather consistent. We also tried to debias WT by applying a novel variation of incentive intervention to shift respondents from fast thinking to slow, rational Type 2 thinking. Unlike past studies, the method was extremely effective in debiasing WT and leading to realistic predictions. However, this was true only for self-WT and not for WT for others. (shrink)

The 34 commentaries on the target article span a broad range of interesting issues. I have organized my reply around five major themes that seemed to emerge: Remarks about the generalizability of the empirical findings, links with other models, necessary extensions, the utility of dual-process models, and more specific points. This allows me to clarify possible misconceptions and identify avenues for further advancement.

Shortcuts to goals are rewarded by faster attainment and punished by more frequent failure, so selection of the various kinds – heuristics, cached sequences (habits or macros), gut instincts – depends on reward history just like other kinds of choice. The speeds of shortcuts lie on continua along with speeds of deliberation, and these continua have no obvious separation points.

De Neys makes a compelling case that the sacrificial moral dilemmas do not elicit competing “fast and slow” processes. But are there even two processes? Or just two intuitions? There remains strong evidence, most notably from lesion studies, that sacrificial dilemmas engage distinct cognitive processes generating conflicting emotional and rational responses. The dual-process theory gets much right, but needs revision.

Human beings adapt the spontaneous pace of their actions to interact with the environment. Yet, the nature of the mechanism enabling such adaptive behavior remains poorly understood. The aim of the present contribution was to examine the role of attention in motor timing using time series analysis, and a dual task paradigm. In a series of two studies, a finger-tapping task was used in sensorimotor synchronization with various tempi and motor complexity. Time series analyzes indicated that two different timing strategies (...) were used depending on the speed constraints. At slow tempi, tapping sequences were characterized by strong negative autocorrelations, suggesting the implication of cognitive predictive timing. When moving at fast and close-to-spontaneous tempi, tapping sequences were characterized by less negative autocorrelations, suggesting that timing properties emerged from body movement dynamics. The analysis of the dual-task reaction times confirmed that both the temporal and spatial constraints impacted the attentional resources allocated to the finger-tapping tasks. Overall, our work suggests that moving fast and slow involve distinct timing strategies that are characterized by contrasting attentional demands. (shrink)

In an age of internet scrolling and skimming, where concentration and attention are fast becoming endangered skills, it is timely to think about the act of reading and the many forms that it can take. Slow Philosophy: Reading Against the Institution makes the case for thinking about reading in philosophical terms. Boulous Walker argues that philosophy involves the patient work of thought; in this it resembles the work of art, which invites and implores us to take our (...) time and to engage with the world. At its best, philosophy teaches us to read slowly; in fact, philosophy is the art of reading slowly – and this inevitably clashes with many of our current institutional practices and demands. Slow reading shares something in common with contemporary social movements, such as that devoted to slow food; it offers us ways to engage the complexity of the world. With the help of writers as diverse as Nietzsche, Wittgenstein, Woolf, Adorno, Levinas, Critchley, Beauvoir, Le Dœuff, Irigaray, Cixous, Weil, and others, Boulous Walker offers a foundational text in the emerging field of slow philosophy, one that explores the importance of unhurried time in establishing our institutional encounters with complex and demanding works. (shrink)

Cushman, Young, & Greene (2010) urge the consolidation of moral psychology around a dual-system consensus. On this view, a slow, often-overstretched rational system tends to produce consequentialist intuitions and action-tendencies, while a fast, affective system produces virtuous (or vicious) intuitions and action-tendencies that perform well in their habituated ecological niche but sometimes disastrously outside of it. This perspective suggests a habit-corrected-by-reason picture of moral behavior. Recent research, however, has raised questions about the adequacy of dual-process theories of cognition (...) and behavior, which tend to distinguish categorically between fast, affect-laden, automatic, sometimes-unconscious, nearly-incorrigible mental processes and slow, rational, effortful, conscious, corrigible mental processes. Processes of one alleged type often have properties associated with the contrary type. For instance, rational processes can be emotional, and fast thinking can perform logical operations. In addition, the fast-slow binary transforms a continuous temporal scale into a dichotomous one, losing potentially important information along the way. While these problems are beginning to be addressed in some subfields of psychology, moral psychology has yet to grapple with them. In this theoretical paper, we argue that moral psychology needs a framework that accounts for our knowledge of both temporal and spatial (anatomical) dimensions of the brain basis of moral cognition and virtuous decision-making. We argue that methodologies with very fine-grained temporal granularity, such as electroencephalography (EEG), should be used to complement more frequently used methodologies such as functional magnetic resonance imaging (fMRI). We outline how this might be accomplished using generosity, gratitude, and integrity as a case study. (shrink)

After more than 60 years, Shannon’s research continues to raise fundamental questions, such as the one formulated by R. Luce, which is still unanswered: “Why is information theory not very applicable to psychological problems, despite apparent similarities of concepts?” On this topic, S. Pinker, one of the foremost defenders of the widespread computational theory of mind, has argued that thought is simply a type of computation, and that the gap between human cognition and computational models may be illusory. In this (...) context, in his latest book, titled Thinking Fast and Slow, D. Kahneman provides further theoretical interpretation by differentiating the two assumed systems of the cognitive functioning of the human mind. He calls them intuition (system 1) determined to be an associative (automatic, fast and perceptual) machine, and reasoning (system 2) required to be voluntary and to operate logical-deductively. In this paper, we propose a mathematical approach inspired by Ausubel’s meaningful learning theory for investigating, from the constructivist perspective, information processing in the working memory of cognizers. Specifically, a thought experiment is performed utilizing the mind of a dual-natured creature known as Maxwell’s demon: a tiny “man–machine” solely equipped with the characteristics of system 1, which prevents it from reasoning. The calculation presented here shows that the Ausubelian learning schema, when inserted into the creature’s memory, leads to a Shannon-Hartley-like model that, in turn, converges exactly to the fundamental thermodynamic principle of computation, known as the Landauer limit. This result indicates that when the system 2 is shut down, both an intelligent being, as well as a binary machine, incur the same minimum energy cost per unit of information (knowledge) processed (acquired), which mathematically shows the computational attribute of the system 1, as Kahneman theorized. This finding links information theory to human psychological features and opens the possibility to experimentally test the computational theory of mind by means of Landauer’s energy cost, which can pave a way toward the conception of a multi-bit reasoning machine. (shrink)