Much recent work on moral responsibility and on distributive justice has addressed the concept of luck. Very little attention has been given to the relation of luck to rationality. How does luck bear on our choices? Can beliefs about luck lead to unwise decisions? These questions have particular relevance for understanding gambling behaviour, and for public policy on gambling. In this paper I argue that no one is reliably lucky, and that projecting luck can undermine rational decision-making. I give various (...) examples to show the conceptual connection between luck and unpredictability. I present an a posteriori conception of projectibility, and argue that because lucky events are rationally unexpected, regularity statements about luck fail to satisfy the conditions of projectibility. I reject the claim that ‘lucky’ is a dispositional term, and thus projectible, on the ground that a dispositional interpretation leads to contradiction. I then defend my claim that luck is not projectible against three objections. I conclude with some thoughts about rational responses to luck, using gambling as an illustration. (shrink)

Jeffrey Barrett presents the most comprehensive study yet of a problem that has puzzled physicists and philosophers since the 1930s. The standard theory of quantum mechanics is in one sense the most successful physical theory ever, predicting the behaviour of the basic constituents of all physical things; no other theory has ever made such accurate empirical predictions. However, if one tries to understand the theory as providing a complete and accurate framework for the description of the behaviour of all (...) physical interactions, it becomes evident that the theory is ambiguous, or even logically inconsistent. The most notable attempt to formulate the theory so as to deal with this problem, the quantum measurement problem, was initiated by Hugh Everett III in the 1950s. Barrett gives a careful and challenging examination and evaluation of the work of Everett and those who have followed him. His informal approach, minimizing technicality, will make the book accessible and illuminating for philosophers and physicists alike. Anyone interested in the interpretation of quantum mechanics should read it. (shrink)

Forgiveness and reconciliation are central to moral life; after all, everyone will be wronged by others and will then face the dual decisions of whether to forgive and whether to reconcile. It is therefore important that we have a clear analysis of each, as well as a thoroughly articulated understanding of how they relate to and differ from each other. -/- Forgiveness has received considerably more attention in the Western philosophical literature than has reconciliation. In this paper I (...) aim to give it the attention it deserves and develop an account of interpersonal reconciliation. On my view reconciliation is fundamentally bilateral (whereas forgiveness is fundamentally unilateral). It entails transparency and agreement between the wrongdoer and the victim as to the nature of a past wrong or set of wrongs. And, it requires that moral repair be made between the two parties (which entails that both parties bear proper attitudes towards each other). In making my case I contrast reconciliation with toleration and collaboration, in order to demonstrate that reconciliation also entails forgiveness (though forgiveness does not entail reconciliation). (shrink)

Apologies are an important part of moral life and a method by which someone can satisfy their reparative obligations. At the same time, apologies can be used both as a shield to protect the person apologizing and as a weapon against the person to whom the apology is owed. In this paper we unpack both claims. We defend two principles one should employ to try to avoid such bad outcomes: (1) Apologies must be one-sided and nontransactional, and (2) the wrongdoer (...) must be willing to pay what they owe. We argue that these principles require the wrongdoer’s emotional vulnerability. Furthermore, we argue that the duty to be vulnerable in issuing apologies helps to make sense of why apologizing well is so difficult and why members of privileged groups might be especially prone to apologizing badly. (shrink)

In this paper I explore how we ought to respond to the problematic inner lives of those that we love. I argue for an understanding of love that is radical and challenging—a powerful form of resistance within the confines of everyday relationships. I argue that love, far from the platitudinous and saccharine view, does not call for our acceptance of others’ failings. Instead, loving another means believing in their potential to grow and holding them to account when they fail. I (...) argue that loving others means meeting them where they are and working to understand the role that oppressive ideologies, coupled with cognitive biases, play in generating and entrenching their problematic mental states. I then argue that we ought not disengage with our loved ones or write them off as lost causes, nor should we accept that we will simply “agree to disagree.” Instead, we should stand in moral solidarity with our loved ones and press them to become better while simultaneously understanding that such moral growth is usually a slow and painful process—often, the project of a lifetime. (shrink)

In this paper, we suggest that affect meets the traditional definition of “cognition” such that the affect–cognition distinction is phenomenological, rather than ontological. We review how the affect–cognition distinction is not respected in the human brain, and discuss the neural mechanisms by which affect influences sensory processing. As a result of this sensory modulation, affect performs several basic “cognitive” functions. Affect appears to be necessary for normal conscious experience, language fluency, and memory. Finally, we suggest that understanding the differences between (...) affect and cognition will require systematic study of how the phenomenological distinction characterising the two comes about, and why such a distinction is functional. (shrink)

The standard view is that the Lagrangian and Hamiltonian formulations of classical mechanics are theoretically equivalent. Jill North, however, argues that they are not. In particular, she argues that the state-space of Hamiltonian mechanics has less structure than the state-space of Lagrangian mechanics. I will isolate two arguments that North puts forward for this conclusion and argue that neither yet succeeds. 1 Introduction2 Hamiltonian State-space Has less Structure than Lagrangian State-space2.1 Lagrangian state-space is metrical2.2 Hamiltonian state-space is symplectic2.3 Metric (...) > symplectic3 Hamiltonian State-space Does Not Have Less Structure than Lagrangian State-space3.1 Lagrangian state-space has less than metric structure3.1.1 A potential worry3.1.2 General Lagrangians3.2 Hamiltonian state-space has more than symplectic structure3.2.1 A dual structure on the Hamiltonian state-space3.2.2 Simple Hamiltonians3.3 Comparing Lagrangian and Hamiltonian structures3.3.1 Counting mathematical structure3.3.2 Symplectic and metric structure are incomparable4 An Alternative Argument for LS4.1 The argument for P3*4.2 Symplectic manifold vs. tangent bundle structure4.3 Trying to patch up the argument for P3*5 Interpreting Mathematical Structure5.1 State-space realism5.2 Model isomorphism and theoretical equivalence6 Conclusion. (shrink)

Human moral judgement may have evolved to maximize the individual's welfare given parochial culturally constructed moral systems. If so, then moral condemnation should be more severe when transgressions are recent and local, and should be sensitive to the pronouncements of authority figures (who are often arbiters of moral norms), as the fitness pay-offs of moral disapproval will primarily derive from the ramifications of condemning actions that occur within the immediate social arena. Correspondingly, moral transgressions should be viewed as less (...) objectionable if they occur in other places or times, or if local authorities deem them acceptable. These predictions contrast markedly with those derived from prevailing non-evolutionary perspectives on moral judgement. Both classes of theories predict purportedly species-typical patterns, yet to our knowledge, no study to date has investigated moral judgement across a diverse set of societies, including a range of small-scale communities that differ substantially from large highly urbanized nations. We tested these predictions in five small-scale societies and two large-scale societies, finding substantial evidence of moral parochialism and contextual contingency in adults' moral judgements. Results reveal an overarching pattern in which moral condemnation reflects a concern with immediate local considerations, a pattern consistent with a variety of evolutionary accounts of moral judgement. (shrink)

This paper concerns how rule-following behavior might evolve in the context of a variety of Skyrms–Lewis signaling game, how such rules might subsequently evolve to be used in new contexts, and how such appropriation allows for the composition of evolved rules. We will also consider how the composition of simpler rules to form more complex rules may be significantly more efficient than evolving the complex rules directly. And we will review an example of rule following by pinyon and (...) scrub jays as an illustration of the appropriation of a rule to a new context :142–150, 2013a; Barrett, Philos Sci, 2014). The proposal here is that the composition of rules might occur in a way that is precisely analogous to such simple appropriation. Finally, we will briefly consider how any finite truth-functional operation might evolve by the sequential appropriation of simpler rules. (shrink)

Context: There is a growing recognition in consciousness science of the need for rigorous methods for obtaining accurate and detailed phenomenological reports of lived experience, i.e., descriptions of experience provided by the subject living them in the “first-person.” Problem: At the moment although introspection and debriefing interviews are sometimes used to guide the design of scientific studies of the mind, explicit description and evaluation of these methods and their results rarely appear in formal scientific discourse. Method: The recent publication of (...) an edited book of papers dedicated to the exploration of first-and second-person methods, Ten Years of Viewing from Within: The Legacy of Francisco Varela, serves as a starting point for a discussion of how these methods could be integrated into the growing discipline of consciousness science. We complement a brief review of the book with a critical analysis of the major pilot studies in Varela’s neurophenomenology, a research program that was explicitly devised to integrate disciplined experiential methods with the latest advances in neuroscience. Results: The book is a valuable resource for those who are interested in impressive recent advances in first- and second-person methods, as applied to the phenomenology of lived experience. However, our review of the neurophenomenology literature concludes that there is as yet no convincing example of these specialized techniques being used in combination with standard behavioral and neuroscientific approaches in consciousness science to produce results that could not have also been achieved by simpler methods of introspective reporting. Implications: The end of behaviorism and the acceptance of verbal reports of conscious experience have already enabled the beginning of a science of consciousness. It can only be of benefit if new first- and second-person methods become well-known across disciplines. Constructivist content: Constructivism has long been interested in the role of the observer in the constitution of our sense of reality, so these developments in the science of consciousness may open new avenues of constructivist research. More specifically, one of the ways in which the insights from first- and second-person methods are being validated is by recursively applying the methods to themselves; a practical application of an epistemological move that will be familiar to constructivists from the second-order cybernetics tradition. (shrink)

Reformed epistemology and cognitive science have remarkably converged on belief in God. Reformed epistemology holds that belief in God is basic—that is, belief in God is a natural, non-inferential belief that is immediately produced by a cognitive faculty. Cognitive science of religion also holds that belief in gods is (often) non-reflectively and instinctively produced—that is, non-inferentially and automatically produced by a cognitive faculty or system. But there are differences. In this paper, we will show some remarkable points of convergence, (...) and a few points of divergence, between Reformed epistemology and the cognitive science of religion. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Environmental Genome Project and BioethicsRichard R. Sharp (bio) and J. Carl Barrett (bio)Eight years ago, the Kennedy Institute of Ethics Journal published a brief selection by Eric Juengst (1991) entitled “The Human Genome Project and Bioethics.” That essay introduced and described the Ethical, Legal, and Social Implications (ELSI) Program at the National Center for Human Genome Research. 1 Since that time, the ELSI program has grown to (...) become one of the largest and most well regarded bioethics programs in the country, sponsoring the work of hundreds of researchers and coordinating bioethics activities both nationally and internationally (Marshall 1996; Meslin, Thomson, and Boyer 1997). In 1991, however, Juengst, the first director of the ELSI program, had no way of anticipating these developments. Juengst’s goal in his essay was simply to highlight some of the moral and social issues that were emerging as focal points for the ELSI program. Looking back, the issues he outlined may seem vague and overly broad. At the time, however, the essay served an important purpose, to identify areas requiring additional study and thereby to serve as a guide to others interested in joining in these discussions.In many ways, Juengst’s article serves as an inspiration to those of us working on a new bioethics project. The National Institute of Environmental Health Sciences (NIEHS) recently launched a multi-year project aimed at better understanding genetic influences on environmentally associated diseases (Albers 1997; Brown and Hartwell 1998; Cannon 1997; Kaiser 1997). This project, known as the Environmental Genome Project (EGP), plans to identify and study a number of common genetic variants that may play an important role in determining how individuals respond to environmental exposures. NIEHS hopes that the information learned through the EGP will be instrumental in developing more effective disease-prevention strategies and intervention programs. Following the precedent developed in connection with the Human Genome Project, NIEHS also plans to address the moral and social implications of the EGP. Efforts in this regard include sponsoring workshops and conferences to address such issues, as well as supporting research on the ethical, legal, and social implications of the EGP. Through this work, NIEHS hopes to anticipate potential problems before [End Page 175] they arise and to develop policies that maximize the benefits of the research while avoiding potential misuses of the information learned.In exploring the social implications of the EGP, we at NIEHS are very fortunate to be able to draw upon the work being done by the ELSI program at the National Human Genome Research Institute (NHGRI), as well as the ever-expanding bioethics literature that has been sparked by the ELSI program. Still, there is much to be done and this is an exciting time for those of us involved with the EGP. Many of the ethical, legal, and social implications of the project are only beginning to become clearer, and several of these issues appear quite different from the sorts of concerns that have previously been discussed in connection with other types of genetic research.This essay highlights some of the ethical, legal, and social implications that are emerging as important focal points for the Environmental Genome Project. Like Juengst’s 1991 paper, the goal of this article is to provide an overview of current areas of interest and to encourage others to join us in thinking about these difficult issues.The Environmental Genome ProjectIndividuals differ greatly in their responses to chemicals, drugs, radiation, smoking, alcohol, and other environmental exposures. These differential responses are the result of complex interactions between many factors, including an individual’s genetic make-up, age, sex, nutritional status, and overall health. The EGP aims to better understand the genetic basis of differential responses to environmental exposures. The vast majority of diseases, many forms of cancer, for example, are the consequence of both environmental and genetic contributions (Perera 1997). Hence, understanding the relationships between genetic variation and response to environmental exposure is important for understanding the causes of human disease and is crucial for the development of effective disease-prevention strategies.The EGP and projects like it represent a new stage of genomic research. It is expected that the Human Genome Project will complete... (shrink)

The Oxford Handbook of Evolutionary Psychology is the definitive, comprehensive, and authoritative text on this burgeoning field. With contributions from over fifty experts in the field, the range and depth of coverage is unequalled. It will be an essential resource for students and researchers in psychology.

We are concerned here with how structural properties of language may come to reflect features of the world in which it evolves. As a concrete example, we will consider how a simple term language might evolve to support the principle of indifference over state descriptions in that language. The point is not that one is justified in applying the principle of indifference to state descriptions in natural language. Instead, it is that one should expect a language that has evolved (...) in the context of facilitating successful action to reflect probabilistic features of the world in which it evolved. (shrink)

This book argues that Kierkegaard, influenced by Kant's critique of metaphysics, did not attempt to integrate human and divine agencies in any speculative theory. Instead, Kierkegaard deploys them to encourage different passions and dispositions that can be integrated in a coherent human life.

We critique two popular philosophical definitions of intellectual humility: the “low concern for status” and the “limitations-owning.” accounts. Based upon our analysis, we offer an alternative working definition of intellectual humility: the virtue of accurately tracking what one could non-culpably take to be the positive epistemic status of one’s own beliefs. We regard this view of intellectual humility both as a virtuous mean between intellectual arrogance and diffidence and as having advantages over other recent conceptions of intellectual humility. After defending (...) this view, we sketch remaining questions and issues that may bear upon the psychological treatment of intellectual humility such as whether evidence will help determine how this construct relates to general social humility on the one hand, and intellectual traits such as open-mindedness, curiosity, and honesty on the other. (shrink)

Decades of research conducted in Western, Educated, Industrialized, Rich, & Democratic (WEIRD) societies have led many scholars to conclude that the use of mental states in moral judgment is a human cognitive universal, perhaps an adaptive strategy for selecting optimal social partners from a large pool of candidates. However, recent work from a more diverse array of societies suggests there may be important variation in how much people rely on mental states, with people in some societies judging accidental harms just (...) as harshly as intentional ones. To explain this variation, we develop and test a novel cultural evolutionary theory proposing that the intensity of kin-based institutions will favor less attention to mental states when judging moral violations. First, to better illuminate the historical distribution of the use of intentions in moral judgment, we code and analyze anthropological observations from the Human Area Relations Files. This analysis shows that notions of strict liability—wherein the role for mental states is reduced—were common across diverse societies around the globe. Then, by expanding an existing vignette-based experimental dataset containing observations from 321 people in a diverse sample of 10 societies, we show that the intensity of a society's kin-based institutions can explain a substantial portion of the population-level variation in people's reliance on intentions in three different kinds of moral judgments. Together, these lines of evidence suggest that people's use of mental states has coevolved culturally to fit their local kin-based institutions. We suggest that although reliance on mental states has likely been a feature of moral judgment in human communities over historical and evolutionary time, the relational fluidity and weak kin ties of today's WEIRD societies position these populations' psychology at the extreme end of the global and historical spectrum. (shrink)

Skyrms-Lewis signaling games illustrate how meaningful language may evolve from initially meaningless random signals (Lewis, Convention 1969; Skyrms 2008). Here we will consider how incommensurable languages might evolve in the context of signaling games. We will also consider the types of incommensurability exhibited between evolved languages in such games. We will find that sequentially evolved languages may be strongly incommensurable while still allowing for increasingly faithful descriptions of the world.

Hugh Everett III proposed his relative-state formulation of pure wave mechanics as a solution to the quantum measurement problem. He sought to address the theory’s determinate record and probability problems by showing that, while counterintuitive, pure wave mechanics was nevertheless empirically faithful and hence empirical acceptable. We will consider what Everett meant by empirical faithfulness. The suggestion will be that empirical faithfulness is well understood as a weak variety of empirical adequacy. The thought is that the very idea (...) of empirical adequacy might be renegotiated in the context of a new physical theory given the theory’s other virtues. Everett’s argument for pure wave mechanics provides a concrete example of such a renegotiation. (shrink)

While Medical-Legal Partnerships (MLPs) have improved the health and well-being of the people they serve, most healthcare institutions will only invest in an MLP if they are convinced that doing so will improve its balance sheet. This article offers a detailed estimation of the cost savings that an MLP targeted toward the most acute legal needs would accrue to an academic medical center (AMC) in North Carolina.

Because of the conceptual difficulties it faces, quantum mechanics provides a salient example of how alternative metaphysical commitments may clarify our understanding of a physical theory and the explanations it provides. Here we will consider how postulating alternative quantum worlds in the context of Hugh Everett III’s pure wave mechanics may serve to explain determinate measurement records and the standard quantum statistics. We will focus on the properties of such worlds, then briefly consider other metaphysical options available for (...) interpreting pure wave mechanics. These reflections will serve to illustrate both the nature and the limits of naturalized metaphysics. (shrink)

There is a long tradition of trying to find a satisfactory interpretation of Everett's relative-state formulation of quantum mechanics. Albert and Loewer recently described two new ways of reading Everett: one we will call the single-mind theory and the other the many-minds theory. I will briefly describe these theories and present some of their merits and problems. Since both are no-collapse theories, a significant merit is that they can take advantage of certain properties of the linear dynamics, which (...) Everett apparently considered to be important, to constrain their statistical laws. (shrink)

There is significant interest in type-free systems that allow flexible self-application. Such systems are of interest in property theory, natural language semantics, the theory of truth, theoretical computer science, the theory of classes, and category theory. While there are a variety of proposed type-free systems, there is a particularly natural type-free system that we believe is prototypical: the logic of recursive algorithms. Algorithmic logic is the study of basic statements concerning algorithms and the algorithmic rules of inference between such statements. (...) As shown in [1], the threat of paradoxes, such as the Curry paradox, requires care in implementing rules of inference in this context. As in any type-free logic, some traditional rules will fail. The first part of the paper develops a rich collection of inference rules that do not lead to paradox. The second part identifies traditional rules of logic that are paradoxical in algorithmic logic, and so should be viewed with suspicion in type-free logic generally. (shrink)

Lewis signaling games illustrate how language might evolve from random behavior. The probability of evolving an optimal signaling language is, in part, a function of what learning strategy the agents use. Here we investigate three learning strategies, each of which allows agents to forget old experience. In each case, we find that forgetting increases the probability of evolving an optimal language. It does this by making it less likely that past partial success will continue to reinforce suboptimal practice. The (...) learning strategies considered here show how forgetting past experience can promote learning in the context of games with suboptimal equilibria. (shrink)

The bare theory is the standard von Neumann·Dirac formulation of quantum mechanics without the collapse postulate but with the eigenvalueeigenstate link. Albert (1992, 1i6-125) presented the bare theory as one way of understanding EverettRi7;s relative-state interpretation. At first glance, it looks as if the bare theory cannot possibly account for our experience. After all, at the end of a measurement an observer will typically be in a superposition of having recorded mutually incompatible results, which on the standard interpretation of (...) states (the interpretation provided by the eigenvalue-eigenstate.. (shrink)

Recent work has suggested that conservation efforts such as restoration ecology and invasive species eradication are largely value-driven pursuits. Concurrently, changes to global climate are forcing ecologists to consider if and how collections of species will migrate, and whether or not we should be assisting such movements. Herein, we propose a philosophical framework which addresses these issues by utilizing ecological and evolutionary interrelationships to delineate individual ecological communities. Specifically, our Evolutionary Community Concept recognizes unique collections of species that interact (...) and have co-evolved in a given geographic area. We argue this concept has implications for a number of contemporary global conservation issues. Specifically, our framework allows us to establish a biological and science-driven context for making decisions regarding the restoration of systems and the removal of exotic species. The ECC also has implications for how we view shifts in species assemblages due to climate change and it advances our understanding of various ecological concepts, such as resilience. (shrink)

Everett (1957a, b, 1973) relative-state formulation of quantum mechanics has often been taken to involve a metaphysical commitment to the existence of many splitting worlds each containing physical copies of observers and the objects they observe. While there was earlier talk of splitting worlds in connection with Everett, this is largely due to DeWitt’s (Phys Today 23:30–35, 1970) popular presentation of the theory. While the thought of splitting worlds or parallel universes has captured the popular imagination, Everett himself favored the (...) language of elements, branches, or relative states in describing his theory. The result is that there is no mention of splitting worlds or parallel universes in any of Everett’s published work. Everett, however, did write of splitting observers and was willing to adopt the language of many worlds in conversation with people who were themselves using such language. While there is evidence that Everett was not entirely comfortable with talk of many worlds, it does not seem to have mattered much to him what language one used to describe pure wave mechanics. This was in part a result of Everett’s empirical understanding of the cognitive status of his theory. (shrink)

David Lewis (1969) introduced sender-receiver games as a way of investigating how meaningful language might evolve from initially random signals. In this report I investigate the conditions under which Lewis signaling games evolve to perfect signaling systems under various learning dynamics. While the 2-state/2- term Lewis signaling game with basic urn learning always approaches a signaling system, I will show that with more than two states suboptimal pooling equilibria can evolve. Inhomogeneous state distributions increase the likelihood of pooling equilibria, (...) but learning strategies with negative reinforcement or certain sorts of mutation can decrease the likelihood of, and even eliminate, pooling equilibria. Both Moran and APR learning strategies (Bereby-Meyer and Erev 1998) are shown to promote successful convergence to signaling systems. A model is presented that illustrates how a language that codes state-act pairs in an order-based grammar might evolve in the context of a Lewis signaling game. The terms, grammar, and the corresponding partitions of the state space co-evolve to generate a language whose structure appears to reflect canonical natural kinds. The evolution of these apparent natural kinds, however, is entirely in service of the rewards that accompany successful distinctions between the sender and receiver. Any metaphysics grounded on the structure of a natural language that evolved in this way would track arbitrary, but pragmatically useful distinctions. (shrink)

Clark and Fischer argue that humans treat social artifacts as depictions. In contrast, theories of distributed cognition suggest that there is no clear line separating artifacts from agents, and artifacts can possess agency. The difference is likely a result of cultural framing. As technology and artificial intelligence grow more sophisticated, the distinction between depiction and agency will blur.

In the past decade the central principles of western feminist theory have been dramatically challenged. many feminists have endorsed post-structuralism's rejection of essentialist theoretical categories, and have added a powerful gender dimension to contemporary critiques of modernity. Earlier 'women' have been radically undermined, and newer concerns with 'difference', 'identity', and 'power' have emerged. Destabilizing Theory explores these developments in a set of specially commissioned essays by feminist theorists. Does this change amount to a real shift within feminist theory, or (...) class='Hi'>will feminism's links with an emancipatory modernism reinstate an older political agenda? Can we transcend the common counterposition of equality and difference, or is feminism condemned to argue within the terms of this binary opposition? (shrink)

In their 2010 book, Biology’s First Law, D. McShea and R. Brandon present a principle that they call ‘‘ZFEL,’’ the zero force evolutionary law. ZFEL says (roughly) that when there are no evolutionary forces acting on a population, the population’s complexity (i.e., how diverse its member organisms are) will increase. Here we develop criticisms of ZFEL and describe a different law of evolution; it says that diversity and complexity do not change when there are no evolutionary causes.

This article considers how a generalized signalling game may self-assemble as the saliences of the agents evolve by reinforcement on those sources of information that in fact lead to successful action. On the present account, generalized signalling games self-assemble even as the agents co-evolve meaningful representations and successful dispositions for using those representations. We will see how reinforcement on successful information sources also provides a mechanism whereby simpler games might compose to form more complex games. Along the way, I (...) consider how an old game might be appropriated to a new context by reinforcement on successful associations between old and new saliences. (shrink)

Abstract: C. S. Peirce's psychological analysis of belief, doubt, and inquiry provides insights into the nature of scientific knowledge. These in turn can be used to construct an account of scientific knowledge where the notions of belief, truth, rational justification, and inquiry are determined by the relationships that must hold between these notions. I will describe this account of scientific knowledge and some of the problems it faces. I will also describe the close relationship between pragmatic and naturalized (...) accounts of scientific knowledge. (shrink)

Pulier (2000, Theory and Decision 49: 291) and Machina (2000, Theory and Decision 49: 293) seek to dissolve the Barrett–Arntzenius infinite decision puzzle (1999, Theory and Decision 46: 101). The proposed dissolutions, however, are based on misunderstandings concerning how the puzzle works and the nature of supertasks more generally. We will describe the puzzle in a simplified form, address the recent misunderstandings, and describe possible morals for decision theory.

Humans and many animals are capable of learning and learning how to learn better. We are concerned here with one way that reinforcement learners might learn how to learn better. In an experiment described by Harlow in (Psychol Rev 56:51–65, 1949) a group of rhesus monkeys learn a new way of learning in the context of a specific type of problem. We will consider how such agents might coevolve a new learning dynamics and new attendant saliences. To this end, (...) we propose a self-tuning dynamics that illustrates one way that a reinforcement learner might acquire forms of learning that are well-suited to context-specific problems. (shrink)

There is good reason to suppose that our best physical theories are false: In addition to its own internal problems, the standard formulation of quantum mechanics is logically incompatible with special relativity. I will also argue that we have no concrete idea what it means to claim that these theories are approximately true.

In order for Bayesian inquiry to count as objective, one might argue that it must lead to a consensus among those who use it and share evidence, but presumably this is not enough. It has been proposed that one should also require that the consensus be reached from very different initial opinions by conditioning only on basic experimental evidence, evidence free from subjective, social, or psychological influence. I will argue here, however, that this notion of objectivity in Bayesian inquiry (...) is too narrow. (shrink)

Adolf Grünbaum has introduced into the literature [4], and several times revised and restated [5] [6], a description of a putative crucial experiment. The outcome of this experiment is supposed to be the conclusive falsification of an hypothesis to the effect that the geometry of a certain region of space, or of a certain surface, is Euclidean. Hereafter, in this paper, I shall refer to this example experiment, in any and all of the different versions of it that Grünbaum has (...) articulated, along with the argumentation with which he has supplemented it, as "Grünbaum's Falsification Example." I will be concerned with all versions of the experiment itself, but only with the most recent supplementary argumentation that Grünbaum has offered, since the ways in which this differs from earlier arguments reflect a taking into account, on Grünbaum's part, of points critics have raised and flaws that they have purported to find in some of those earlier arguments [7-11]. There are three separate important theses against which one or another version of Grünbaum's Falsification Example may be taken to have been directed. Each of these Grünbaum has either explicitly claimed to refute or at least left himself open to the interpretation that he has sought to refute, by means of the example. I propose to try to make clear that none of these three theses is refuted, or even threatened with counterevidence, by Grünbaum's Falsification Example. (shrink)

We consider the nature of quantum randomness and how one might have empirical evidence for it. We will see why, depending on one’s computational resources, it may be impossible to determine whether...

We are concerned here with how structural properties of language may come to reflect features of the world in which it evolves. As a concrete example, we will consider how a simple term language might evolve to support the principle of indifference over state descriptions in that language. The point is not that one is justified in applying the principle of indifference to state descriptions in natural language. Instead, it is that one should expect a language that has evolved (...) in the context of facilitating successful action to reflect probabilistic features of the world in which it evolved. (shrink)

It is widely held that intuitive dualism—an implicit default mode of thought that takes minds to be separable from bodies and capable of independent existence—is a human universal. Among the findings taken to support universal intuitive dualism is a pattern of evidence in which “psychological” traits (knowledge, desires) are judged more likely to continue after death than bodily or “biological” traits (perceptual, physiological, and bodily states). Here, we present cross-cultural evidence from six study populations, including non-Western societies with diverse belief (...) systems, that shows that while this pattern exists, the overall pattern of responses nonetheless does not support intuitive dualism in afterlife beliefs. Most responses of most participants across all cultures tested were not dualist. While our sample is in no way intended to capture the full range of human societies and afterlife beliefs, it captures a far broader range of cultures than in any prior study, and thus puts the case for afterlife beliefs as evidence for universal intuitive dualism to a strong test. Based on these findings, we suggest that while dualist thinking is a possible mode of thought enabled by evolved human psychology, such thinking does not constitute a default mode of thought. Rather, our data support what we will call intuitive materialism—the view that the underlying intuitive systems for reasoning about minds and death produce as a default judgment that mental states cease to exist with bodily death. (shrink)

Lawson and McCauley have argued that non-cultural regularities in how actions are conceptualized inform and constrain participants' understandings of religious rituals. This theory of ritual competence generates three predictions: 1) People with little or no knowledge of any given ritual system will have intuitions about the potential effectiveness of a ritual given minimal information about the structure of the ritual. 2) The representation of superhuman agency in the action structure will be considered the most important factor contributing to (...) effectiveness. 3) Having an appropriate intentional agent initiate the action will be considered relatively more important than any specific action to be performed. These three predictions were tested in two experiments with 128 North American Protestant college students who rated the probability of various fictitious rituals to be effective in bringing about a specified consequence. Results support Lawson and McCauley's predictions and suggest that expectations regarding ordinary social actions apply to religious rituals. (shrink)

A resolution of the quantum measurement problem would require one to explain how it is that we end up with determinate records at the end of our measurements. Metaphysical commitments typically do real work in such an explanation. Indeed, one should not be satisfied with one's metaphysical commitments unless one can provide some account of determinate measurement records. I will explain some of the problems in getting determinate records in relativistic quantum field theory and pay particular attention to the (...) relationship between the measurement problem and a generalized version of Malament's theorem. (shrink)

Accuracy in the philosophical theory of rationality demands that we recognize particular beliefs as arising within the context of larger units, the cultural or conceptual schemes, patterns, or practices, involvement in which itself provides standards and grounds for their rational evaluation. At the same time, though, a satisfactory account of rationality cannot hold the standards, values, or commitments of one particular culture, practice, or conceptual scheme, even one’s own, immune from rational criticism. In order to accurately and responsibly picture the (...) shape of our commitments and the dynamics of their revision over time, in other words, the theory of rationality must reconcile the immanence of reason to particular cultural and conceptual units with its transcendence of them. This raises a deep and far-ranging problem of perspective. In his perspicuous presentation of it, Hilary Putnam put the problem this way: There are two points that must be balanced, both points that have been made by philosophers of many different kinds: (1) talk of what is ‘right’ and ‘wrong’ in any area only makes sense against the background of an inherited tradition; but (2) traditions themselves can be criticized … On the one hand, there is no notion of reasonableness at all without cultures, practices, procedures; on the other hand, the cultures, practices, procedures we inherit are not an algorithm to be slavishly followed. As Mill said, commenting on his own inductive logic, there is no rule book which will not lead to terrible results ‘if supposed to be conjoined with universal idiocy.’ Reason is, in this sense, both immanent (not to be found outside of concrete language games and institutions) and transcendent (a regulative idea that we use to criticize the conduct of all activities and institutions). (p. 431). As Putnam argues, it is difficult to find a standpoint of theory from which the contrasting claims of immanence and transcendence can be reconciled.. (shrink)

Writing in 1992, biologist E. O. Wilson prophesied, "Here is the means to end the great extinction spasm. The next century will, I believe, be the era of restoration in ecology." 2 This statement has become the rallying cry for advocates of ecological restoration, an emerging international environmental movement focused on the renewal of damaged or destroyed ecosystems. 3 The benefits promised by ecological restoration are manifold. In addition to its primary ecological goals of replenished biodiversity and improved ecosystem (...) functioning, restoration fosters intimate, participatory kinds of community between practitioners and their local environments. 4 Moreover, the idea that we can .. (shrink)

A field-theoretic version of Wigner’s friend (1961) illustrates how the quantum measurement problem arises for field theory. Similarly, considering spacelike separate measurements of entangled fields by observers akin to Wigner’s friend shows the sense in which relativistic constraints make the measurement problem particularly difficult to resolve in the context of a relativistic field theory. We will consider proposals by Wigner (1961), Bloch (1967), Helwig and Kraus (1970), and Bell (1984) for resolving the measurement problem for quantum field theory. We (...) will conclude by considering the possibility of giving up rich dynamical explanation in the context of a many-maps formulation of relativistic quantum field theory. (shrink)

David Hume’s skeptical solution to the problem of induction was grounded in his belief that we learn by means of custom. We consider here how a form of reinforcement learning like custom may allow an agent to learn how to learn in other ways as well. Specifically, an agent may learn by simple reinforcement to adopt new forms of learning that work better than simple reinforcement in the context of specific tasks. We will consider how such a bootstrapping process (...) may lead to a system that includes trial-and-error forms of learning like win-stay/lose-shift, probe and adjust, and simple reinforcement itself together with higher-rationality inferential tools. (shrink)

This paper is concerned with how a simple metalanguage might coevolve with a simple descriptive base language in the context of interacting Skyrms–Lewis signaling games Lewis. We will first consider a metagame that evolves to track the successful and unsuccessful use of a coevolving base language, then we will consider a metagame that evolves a truth predicate for expressions in a coevolving base language. We will see how a metagame that tracks truth provides an endogenous way to (...) break the symmetry between indicative and imperative interpretations of the base language. Finally, we will consider how composite signaling games provide a way to characterize alternative pragmatic notions of truth. (shrink)