The notion of Socratic Note Taking is introduced to enhance students’ learning from assigned readings. SNT features students asking questions and answering their own questions while doing the readings. To test the effectiveness of SNT, half the students from two sections of a philosophy course were assigned SNT on alternating weeks. Quizzes each week alternated between the two classes as either high or low stakes in a counterbalanced format. The design was a 2 x 2 x 2 within-participants factorial. On (...) ten-point quizzes, SNT made an average difference of 1.22 points. Furthermore, the results indicate that SNT is particularly effective with weaker students, e.g., we found a nearly three-point increase on ten-point quizzes for the weakest students. (shrink)

Rodrigues and Banzato related the validity of diagnostic categories to their meaningfulness and I wish to explore this relation further without attempting to make criticisms. To commence, if a diagnostic category is to be valid, it must mean something.

Oulis pointed out that there is a great deal of interest in specific mechanisms relating to mental disorders and that these mechanisms should play a role in classification. Although specific mechanisms are important, more attention should be given to general theories. The following example from Salmon illustrates the difference.

In their interesting article, Trevors and Saier strongly distinguished between science and mysticism. I quote the last two sentences of their conclusion: "Science has allowed some humans to understand the universe at a profound level. Other have decided that the best way to understand the universe is through supernatural entities." Although there is a difference between the two, the difference is less clear than Trevors and Saier make it out to be.

Gaetano commented on the problems that exist in diagnosing schizophrenia and argues that more effort should be devoted to understanding relevant subjective experiences. I am not convinced that this is necessarily so. I have argued previously that diagnosis of clinical disorders is unlikely to work well in the absence of a theory on which the diagnostic system can be based. At present, there is very little theory concerning schizophrenic disorders, or at least very little theory that elicits wide agreement and (...) has definitive empirical support. (shrink)

Di Francesco and Marraffa performed a well-organized exploration of the literature concerned with consciousness. They described how interest in the issue dates back to ancient Greek philosophers, and continues to be of interest. Researchers invest impressive amounts of resources into investigating the issue. My goal is to question whether this is optimal.

The zetetic turn in epistemology raises three questions about epistemic and zetetic norms. First, there is the relationship question: what is the relationship between epistemic and zetetic norms? Are some epistemic norms zetetic norms, or are epistemic and zetetic norms distinct? Second, there is the tension question: are traditional epistemic norms in tension with plausible zetetic norms? Third, there is the reaction question: how should theorists react to a tension between epistemic and zetetic norms? Drawing on an analogy to practical (...) philosophy, I develop a focal point view to resolve these motivating questions. On the focal point view, traditional epistemic norms and zetetic norms answer different types of normative questions. There is nevertheless a familiar type of evaluative tension between traditional epistemic norms and zetetic norms, but this tension is an unavoidable feature of the normative landscape and not a sign that traditional epistemic norms need revision. But if traditional epistemic norms are not zetetic norms, then in what sense is zetetic epistemology a project for epistemologists? I conclude by articulating a sense in which some nontraditional epistemic norms are zetetic norms, and in which zetetic epistemology is an important part of the study of theoretical rationality. (shrink)

Our aim in this entry is to articulate the state of the art in the moral psychology of personal identity. We begin by discussing the major philosophical theories of personal identity, including their shortcomings. We then turn to recent psychological work on personal identity and the self, investigations that often illuminate our person-related normative concerns. We conclude by discussing the implications of this psychological work for some contemporary philosophical theories and suggesting fruitful areas for future work on personal identity.

Bounded rationality gets a bad rap in epistemology. It is argued that theories of bounded rationality are overly context‐sensitive; conventionalist; or dependent on ordinary language (Carr, 2022; Pasnau, 2013). In this paper, I have three aims. The first is to set out and motivate an approach to bounded rationality in epistemology inspired by traditional theories of bounded rationality in cognitive science. My second aim is to show how this approach can answer recent challenges raised for theories of bounded rationality. My (...) third aim is to clarify the role of rational ideals in bounded rationality. (shrink)

Hylomorphists hold that substances are, in some sense, composites of matter and form. The form of a substance is typically taken to play a fundamental role in determining the unity or identity of the whole. Staunch hylomorphists think that this role is of a kind that precludes the ontological reduction of form to the physical and thus take their position to be inconsistent with physicalism. Forms, according to staunch hylomorphism, play a fundamental role in grounding their bearers’ proper parts and (...) that, it seems, rules out the physical grounding of form itself. I shall develop a physicalist version of hylomorphism that treats form as geometric structure and which, I shall argue, entails many of the central theses endorsed by staunch hylomorphists. Based on Shoemaker’s notion of conditional powers, I shall argue that the geometric structures of complex wholes are the conditions on at least some of the conditional powers of their bearers’ proper parts, transforming those powers into powers simpliciter. Thus, forms play a fundamental role in the dynamical evolution of the physical world, but without bestowing causal powers themselves and hence without violating the causal closure of the physical domain. If a substance’s proper parts are taken to be individuated by their powers simpliciter, then they derive their identities from their places in the substantial whole, which thus determines the identities of its proper parts without changing their intrinsic natures. (shrink)

Longtermists have recently argued that it is overwhelmingly important to do what we can to mitigate existential risks to humanity. I consider three mistakes that are often made in calculating the value of existential risk mitigation. I show how correcting these mistakes pushes the value of existential risk mitigation substantially below leading estimates, potentially low enough to threaten the normative case for existential risk mitigation. I use this discussion to draw four positive lessons for the study of existential risk. -/- (...) . (shrink)

Epistemology has taken a zetetic turn from the study of belief towards the study of inquiry. Several decades ago, theories of bounded rationality took a procedural turn from attitudes towards the processes of inquiry that produce them. What is the relationship between the zetetic and procedural turns? In this paper, I argue that we should treat the zetetic turn in epistemology as part of a broader procedural turn in the study of bounded rationality. I use this claim to motivate and (...) clarify the zetetic turn in epistemology, as well as to reveal the need for a second zetetic turn within practical philosophy. (shrink)

The simulation hypothesis has recently excited renewed interest, especially in the physics and philosophy communities. However, the hypothesis specifically concerns {computers} that simulate physical universes, which means that to properly investigate it we need to couple computer science theory with physics. Here I do this by exploiting the physical Church-Turing thesis. This allows me to introduce a preliminary investigation of some of the computer science theoretic aspects of the simulation hypothesis. In particular, building on Kleene's second recursion theorem, I prove (...) that it is mathematically possible for us to be in a simulation that is being run on a computer \textit{by us}. In such a case, there would be two identical instances of us; the question of which of those is ``really us'' is meaningless. I also show how Rice's theorem provides some interesting impossibility results concerning simulation and self-simulation; briefly describe the philosophical implications of fully homomorphic encryption for (self-)simulation; briefly investigate the graphical structure of universes simulating universes simulating universes, among other issues. I end by describing some of the possible avenues for future research that this preliminary investigation reveals. (shrink)

The article discusses retributive justice and punitive restraint in response to the worst types of crime. I take the Breivik Case as a starting point. Anders Behring Breivik was sentenced to 21 years of preventive detention for killing 69 people, mainly youths, at Utøya and 8 people in Oslo on July 22nd, 2011. Retributivist theories as well as commonly held retributive intuitions suggest that much harsher punishment is required for such crimes. According to some retributivist theories, most notably on the (...) influential theories of Kant and Hegel, the death penalty is warranted for murderers like Breivik. This suggests that the rationale for punitive restraint in a case like the Breivik Case can only be found in forward- looking, consequentialist theories of punishment, or by adding to retributivist theories a side-constraint in the form of a principle of parsimony. However, I argue that if we look closer at the function of punishment in the retributivist theories of Kant and Hegel, they too imply a rationale for punitive restraint, even for such horrific crimes as here discussed. Against Kant and Hegel’s own views on the death penalty, I argue that their broader “freedom theories” of retributive justice do not imply the justice of the death penalty or life imprisonment. In the last part of the article, I explore differences in the concepts of freedom entailed by Kant and Hegel’s theories, and I relate these to some of the background factors relevant to the Breivik Case. (shrink)

What happens when someone acts? A familiar answer goes like this. There is something that the agent wants, and there is an action that he believes conducive to its attainment. His desire for the end, and his belief in the action as a means, justify taking the action, and they jointly cause an intention to take it, which in turn causes the corresponding movements of the agent's body. I think that the standard story is flawed in several respects. The flaw (...) that will concern me in this paper is that the story fails to include an agent-or, more precisely, fails to cast the agent in his proper role. (shrink)

Most accounts of cognitive scaffolding focus on ways that external structure can support or augment an agent’s cognitive capacities. We call cases where the interests of the user are served benign scaffolding and argue for the possibility and reality of hostile scaffolding. This is scaffolding which depends on the same capacities of an agent to make cognitive use of external structure as in benign cases, but that undermines or exploits the user while serving the interests of another agent. We develop (...) criteria for scaffolding being hostile and show by reference to examples including the design features of electronic gambling machines and casino management systems that hostile scaffolding exists and can be highly effective. In cases where the scaffolding is deep and permits the offloading of significant cognitive work, hostile scaffolding exploitatively manipulates cognitive processing itself. Given the extent of human reliance on scaffolding this is an important and neglected vulnerability. [This is an updated version of the paper, added in February 2023.]. (shrink)

Matters of Certainty and Conviction. In the section on certainty, Shaw puts forth a proof of the external world, and considers topics such as change, difference, time, consciousness, substance and quality.

"FICHTEANA Review of J.G. Fichte Research" is an online publication in English devoted to new scholarship on the philosopher Johann Gottlieb Fichte. It publishes information and reviews of the latest Fichte editions, books, publications, conferences, and Calls for Papers. Originally founded by Daniel Breazeale in 1993, since issue 22 (2022), FICHTEANA has appeared in an expanded form with book reviews. It is co-edited by Daniel Breazeale and David W. Wood, with associate editor Kienhow Goh. -/- .

Fichte-Studien, volume 49 (Leiden: Brill/Rodopi Publishers, 8 April 2021), edited by David W. Wood, 471pp. -/- Presenting new critical perspectives on J.G. Fichte’s Wissenschaftslehre, this volume of articles in English by an international group of scholars addresses the topic of first principles in Fichte’s writings. Especially discussed are the central text of his Jena period, the 1794/95 Grundlage der gesammten Wissenschaftslehre, as well as later versions like the Wissenschaftslehre nova methodo (1796-99) and the presentations of 1804 and 1805. Also (...) included are new studies on the first principles of the particular sub-disciplines of Fichte’s system, such as the doctrines of aesthetics, nature, right, ethics, and history. The volume also contains a number of miscellaneous essays on Fichte research, as well as several book reviews. (shrink)

(...) However, whether we chose a weak or strong approximation, the set would not make any sense at all, if (once more) this choice would not be justified in either temporal or spatial sense or given the context of possible applicability of the set in different circumstances. This would obviously represent a dualism in itself as we would (for instance) posit and apply a full identity-equality-equivalence of x and y when applying Newtonian physics to certain observations we make (it would (...) be the case of neural correlates), and we would posit and apply a non - identity-equality-equivalence of x and y when applying Quantum mechanics to other observations. Following this dualism in and of theories, the same sate would need to be slightly modified: U2:(x~y)∪(x≈y); U3:(x~y)∩(x≈y); U4a:(x~y)⊆(x≈y) vs. U4b:(x~y)⊇(x≈y). (shrink)

Ross Cameron proposes to reconcile presentism and truth-maker theory by invoking temporal distributional properties, instantiated by present entities, as the truth-makers for truths about the past. This chapter argues that Cameron's proposal fails because objects can change which temporal distributional properties they instantiate and this entails that the truth-values of truths about the past can change in an objectionable way.

The late Middle Ages witnessed a recapitulation of medieval reflection on beauty. Jean Gerson is an important representative of these philosophical and theological contributions, although he has been largely neglected up to this time. A first dimension of his ideas on beauty is the incorporation of beauty (pulchrum) into the number of transcendentals, i.e., the concepts “convertible” with the notion of being (ens), that is, unity, truth, and goodness (unum, verum and bonum). This article revisits Monica Calma’s study on Gerson’s (...) theory of beauty and suggests new hypothetical sources that may have inspired this aspect of his thought. The second aspect emphasised here is Gerson’s classification of beauty, which entails some similarities to the one of Ulrich of Strasbourg, but also differs from it. Moreover, its incorporation of a division entirely devoted to artistic beauty is highly remarkable. (shrink)

This issue 23 of FICHTEANA is dedicated to Daniel Breazeale, who passed away on 30 December 2023. -/- "FICHTEANA Review of J.G. Fichte Research" is an annual online publication in English devoted to new scholarship on the philosopher Johann Gottlieb Fichte. It publishes information and reviews of the latest Fichte editions, books, publications, conferences, and Calls for Papers. Originally founded by Daniel Breazeale in 1993, since issue 22 (2022), FICHTEANA has appeared in an expanded form with book reviews. Editors: Daniel (...) Breazeale (†) and David W. Wood; with associate editors Kienhow Goh and Gesa Wellmann. -/- . (shrink)

A letter protesting the publication of a homophobic rant in the Proceedings of the APA.

This book presents an analysis of the correlation between the mind and the body, a complex topic of study and discussion by scientists and philosophers. Drawing largely on neuroscience and philosophy, the author utilizes the scientific method and incorporates lessons learned from a vast array of sources. Based on the most recent cutting-edge scientific discoveries on the Mind-Body problem, Tomasi presents a full examination of multiple fields related to neuroscience. The volume offers a scientist-based and student-friendly journey into medicine, psychology, (...) artificial intelligence, embodied cognition, and social, ecological and anthropological models of perception, to discover our truest self. -/- Introduction The Exact Science of the Hard Matter Between Psyche and Mind Medicine on, of and off the Brain Brain, Culture, Society Perception and Cognition Conclusion: Philosophy as Basic Approach Toward Neuroscience . (shrink)

Models of idealistic societies pervade the history of political thought from ancient times to the present. How can these models contribute to our thinking about political life in our non-ideal world? Not, as many political theorists have hoped, by performing a normative function -- by giving us reasons to accept particular political principles for the purpose of regulating our thought and behavior. Even still, idealistic models can sharpen our thinking about politics by performing a conceptual function -- by helping us (...) clarify and interpret the concepts we use to describe and evaluate political behavior and institutions. These insights point to a more incisive and judicious approach to political inquiry, in which explanatory and normative modes of thought are tightly intertwined. (The manuscript is under review. I have uploaded the table of contents, chapters 1 and 2, and the bibliography. Chapter summaries are available from my website.). (shrink)

Al-Taftāzānī introduces the Liar Paradox, in a commentary on al-Rāzī, in a short passage that is part of a polemic against the ethical rationalism of the Muʿtazila. In this essay, we consider his remarks and their place in the history of the Liar Paradox in Arabic Logic. In the passage, al-Taftāzānī introduces Liar Cycles into the tradition, gives the paradox a puzzling name—the fallacy of the “irrational root” —which became standard, and suggests a connection between the paradox and what it (...) tells us about truth and falsehood, and arguments for divine voluntarism and what they tell us about the nature of goodness and badness. On this last point, we also discuss a passage from al-Rāzī, which suggests similar connections. (shrink)

David Tomasi presents new, groundbreaking research on the science and application of Mind-Body Medicine strategies to improve clinical outcomes in inpatient psychiatry settings. Much more than a list of therapeutic recommendations, this book is a thorough description of how Mind-Body Medicine can be successfully applied, from a therapeutic as well as from an organizational, cost-effective analysis viewpoint, to the full spectrum of psychiatric treatments. Furthermore, this study examines the role of multidisciplinary and interdisciplinary treatment teams, with a special focus (...) on the profession and the role of psychotherapists and group therapists, thereby providing solid scientific evidence of the benefits of patient-provider therapeutic alliances. In this sense, this book serves as a guide for professionals and institutions both in the private and the public sphere, to learn effective treatment and management strategies. About the Author Psychotherapist, Researcher, and Philosopher Dr. David Låg Tomasi is the author of Medical Philosophy (ibidem, 2016) and the co-author of Positive Patient Response to a Structured Exercise Program Delivered in Inpatient Psychiatry (Global Advances in Health and Medicine, 2019), the most-read research item from the University of Vermont (Researchgate, 2019). A member of several national and international Academies of Sciences, Dr. Tomasi works in the Inpatient Psychiatry Unit at the UVM Medical Center, and teaches at the University of Vermont and the Community College of Vermont. ---- Ibidem / Columbia University Press. (shrink)

The paper investigates the type of realism that best suits the framework of decoherence taken at face value without postulating a plurality of worlds, or additional hidden variables, or non-unitary dynamical mechanisms. It is argued that this reading of decoherence leads to an extremely radical type of perspectival realism, especially when cosmological decoherence is considered.

[This is an edited version of a keynote talk at the conference on Neural Information Processing Systems (NeurIPS) on November 28, 2022, with some minor additions and subtractions.] -/- There has recently been widespread discussion of whether large language models might be sentient or conscious. Should we take this idea seriously? I will break down the strongest reasons for and against. Given mainstream assumptions in the science of consciousness, there are significant obstacles to consciousness in current models: for example, their (...) lack of recurrent processing, a global workspace, and unified agency. At the same time, it is quite possible that these obstacles will be overcome in the next decade or so. I conclude that while it is somewhat unlikely that current large language models are conscious, we should take seriously the possibility that successors to large language models may be conscious in the not-too-distant future. (shrink)

Linguistic representations are taken by some to be representations of something, specifically of Standard Linguistic Entities, such as phonemes, clauses, noun phrases etc. This perspective takes them to be intentional. Rey (2021) further argues that the SLEs themselves are inexistent. Here I argue that linguistic representations are simply structures, abstractions of brain states, and hence not intentional, and show how they nevertheless connect to the systems that use them.

You and I are going to die. We are aware that it is going to happen, but not exactly when—in which there is relief, but also anxiety. What happens to us when we know with some precision what our last day will be? In this text, we discern the process of our own death, once we have reliable information about the approximate moment of the cessation of our life. Tú y yo vamos a morir. Estamos al tanto de que va (...) a ocurrir, pero no exactamente cuándo —en lo cual hay alivio, pero también angustia—. ¿Qué nos ocurre al saber con cierta precisión cuál será nuestro último día? En este texto, discernimos el proceso de nuestra propia muerte, una vez que tenemos información confiable sobre el momento aproximado del cese de nuestra vida. (shrink)

Kant takes the idea of autonomy of the will to be his distinctive contribution to moral philosophy. However, this idea is more nuanced and complicated than one might think. In this chapter, I sketch the rough outlines of Kant’s idea of autonomy of the will while also highlighting contentious exegetical issues that give rise to various possible interpretations. I tentatively defend four basic claims. First, autonomy primarily features in Kant’s account of moral agency, as the condition of the possibility of (...) moral obligation. Second, autonomy amounts to a metaphysical property as well as a normative principle and a psychological capacity. Third, although there is legitimate scholarly disagreement about whether or not autonomy involves self-legislation of the moral law, there is good reason to believe it underwrites an ‘inside-out’ (as opposed to ‘outside-in’) conception of the relationship between the will and moral requirements. Fourth, persons have dignity because their autonomy makes them members in the set of beings over whom the categorical imperative requires us to universalise our maxims, not because autonomy is an independently important property. (shrink)

Inspired by Rudolf Carnap's Der Logische Aufbau Der Welt, David J. Chalmers argues that the world can be constructed from a few basic elements. He develops a scrutability thesis saying that all truths about the world can be derived from basic truths and ideal reasoning. This thesis leads to many philosophical consequences: a broadly Fregean approach to meaning, an internalist approach to the contents of thought, and a reply to W. V. Quine's arguments against the analytic and the a (...) priori. Chalmers also uses scrutability to analyze the unity of science, to defend a conceptual approach to metaphysics, and to mount a structuralist response to skepticism. Based on the 2010 John Locke lectures, Constructing the World opens up debate on central philosophical issues involving language, consciousness, knowledge, and reality. This major work by a leading philosopher will appeal to philosophers in all areas. This entry contains uncorrected proofs of front matter, chapter 1, and first excursus. (shrink)

It has often been suggested that people's ordinary understanding of morality involves a belief in objective moral truths and a rejection of moral relativism. The results of six studies call this claim into question. Participants did offer apparently objectivist moral intuitions when considering individuals from their own culture, but they offered increasingly relativist intuitions considering individuals from increasingly different cultures or ways of life. The authors hypothesize that people do not have a fixed commitment to moral objectivism but instead tend (...) to adopt different views depending on the degree to which they consider radically different perspectives on moral questions. (shrink)

Does consciousness collapse the quantum wave function? This idea was taken seriously by John von Neumann and Eugene Wigner but is now widely dismissed. We develop the idea by combining a mathematical theory of consciousness (integrated information theory) with an account of quantum collapse dynamics (continuous spontaneous localization). Simple versions of the theory are falsified by the quantum Zeno effect, but more complex versions remain compatible with empirical evidence. In principle, versions of the theory can be tested by experiments with (...) quantum computers. The upshot is not that consciousness-collapse interpretations are clearly correct, but that there is a research program here worth exploring. (shrink)

Some philosophers have recently suggested that the reason mathematics is useful in science is that it expands our expressive capacities. Of these philosophers, only Stephen Yablo has put forward a detailed account of how mathematics brings this advantage. In this article, I set out Yablo’s view and argue that it is implausible. Then, I introduce a simpler account and show it is a serious rival to Yablo’s. 1 Introduction2 Yablo’s Expressionism3 Psychological Objections to Yablo’s Expressionism4 Introducing Belief Expressionism5 Objections and (...) Replies5.1 Yablo’s likely response5.2 Charity6 Conclusion. (shrink)

The unpleasantness of pain motivates action. Hence many philosophers have doubted that it can be accounted for purely in terms of pain’s possession of indicative representational content. Instead, they have explained it in terms of subjects’ inclinations to stop their pains, or in terms of pain’s imperative content. I claim that such “noncognitivist” accounts fail to accommodate unpleasant pain’s reason-giving force. What is needed, I argue, is a view on which pains are unpleasant, motivate, and provide reasons in virtue of (...) possessing content that is indeed indicative, but also, crucially, evaluative. (shrink)

Much recent discussion in the philosophy of mathematics has concerned the indispensability argument—an argument which aims to establish the existence of abstract mathematical objects through appealing to the role that mathematics plays in empirical science. The indispensability argument is standardly attributed to W. V. Quine and Hilary Putnam. In this paper, I show that this attribution is mistaken. Quine's argument for the existence of abstract mathematical objects differs from the argument which many philosophers of mathematics ascribe to him. Contrary to (...) appearances, Putnam did not argue for the existence of abstract mathematical objects at all. I close by suggesting that attention to Quine and Putnam's writings reveals some neglected arguments for platonism which may be superior to the indispensability argument. (shrink)

The singularity hypothesis is a radical hypothesis about the future of artificial intelligence on which self-improving artificial agents will quickly become orders of magnitude more intelligent than the average human. Despite the ambitiousness of its claims, the singularity hypothesis has been defended at length by leading philosophers and artificial intelligence researchers. In this paper, I argue that the singularity hypothesis rests on scientifically implausible growth assumptions. I show how leading philosophical defenses of the singularity hypothesis (Chalmers 2010, Bostrom 2014) fail (...) to overcome the case for skepticism. I conclude by drawing out philosophical implications of this discussion for our understanding of consciousness, personal identity, digital minds, existential risk, and ethical longtermism. GPI Working Paper No . 19-2022. (shrink)

Accounts of the nature of unpleasant pain have proliferated over the past decade, but there has been little systematic investigation of which of them can accommodate its badness. This paper is such a study. In its sights are two targets: those who deny the non-instrumental disvalue of pain's unpleasantness; and those who allow it but deny that it can be accommodated by the view—advanced by me and others—that unpleasant pains are interoceptive experiences with evaluative content. Against the former, I argue (...) that pain's unpleasantness does indeed have noninstrumental disvalue; against the latter I argue both that my critics’ own desire-theoretic accounts of pain's unpleasantness cannot accommodate such disvalue, and that my evaluativist view can—either by appealing to “anti-unpleasantness” desires or by exploiting pain's perceptuality. (shrink)

We present data and argument to show that in Tetris - a real-time interactive video game - certain cognitive and perceptual problems are more quickly, easily, and reliably solved by performing actions in the world rather than by performing computational actions in the head alone. We have found that some translations and rotations are best understood as using the world to improve cognition. These actions are not used to implement a plan, or to implement a reaction; they are used to (...) change the world in order to simplify the problem-solving task. Thus, we distinguish pragmatic actions ñ actions performed to bring one physically closer to a goal - from epistemic actions - actions performed to uncover information that is hidden or hard to compute mentally. To illustrate the need for epistemic actions, we first develop a standard information-processing model of Tetris-cognition, and show that it cannot explain performance data from human players of the game - even when we relax the assumption of fully sequential processing. Standard models disregard many actions taken by players because they appear unmotivated or superfluous. However, we describe many such actions that are actually taken by players that are far from superfluous, and that play valuable roles in improving human performance. We argue that traditional accounts are limited because they regard action as having a single function: to change the world. By recognizing a second function of action - an epistemic function - we can explain many of the actions that a traditional model cannot. Although, our argument is supported by numerous examples specifically from Tetris, we outline how the one category of epistemic action can be incorporated into theories of action more generally. (shrink)