The dominant view in the cognitive science of religion (the ‘Standard Model’) is that religious belief and behaviour are not adaptive traits but rather incidental byproducts of the cognitive architecture of mind. Because evidence for the Standard Model is inconclusive, the case for it depends crucially on its alleged methodological superiority to selectionist alternatives. However, we show that the Standard Model has both methodological and evidential disadvantages when compared with selectionist alternatives. We also consider a pluralistic approach, which holds that (...) religion or various aspects of religion originated as byproducts of evolved cognitive structures but were subsequently co-opted for adaptive purposes. We argue that when properly formulated, the pluralistic approach also has certain advantages over the Standard Model. (shrink)

The link between parasite-stress and complex psychological dispositions implies that the social, political, and economic benefits likely to flow from public health interventions that reduce rates of non-zoonotic infectious disease are far greater than have traditionally been thought. We sketch a prudential and ethical argument for increasing public health resources globally and redistributing these to focus on the alleviation of parasite-stress in human populations.

The relationship between religion, intolerance and conflict has been the subject of intense discussion, particularly in the wake of the events of 9-11 and the ongoing threat of terrorism. This book contains original papers written by some of the world's leading scholars in anthropology, psychology, philosophy and theology exploring the scientific and conceptual dimensions of religion and human conflict. The volume will be of great interest to academics across avariety of disciplines, including religious studies, philosophy, psychology, theology, cognitive science, anthropology, (...) politics, international relations, and evolutionary biology. It will also be ofinterest to the many lay readers who are interested in the phenomenon of religious conflict and who value access to the best available empirically informed perspectives on this topic. (shrink)

The authors of a much discussed recent book A Lot of People are Saying: The New Conspiracism and the Assault on Democracy, Russell Muirhead and Nancy L. Rosenblum argue that ‘a new conspiracism’ has emerged recently. Their examples include Donald Trump’s allegations that elections have been rigged, ‘Birther’ accusations about Barack Obama, ‘QAnon’ and ‘Pizzagate’. They characterize these as ‘conspiracism without the theory’. They argue that the new conspiracism is validated by repetition, disregards experts, and is satisfied with the (...) conclusion that allegations are ‘true enough’. Here I argue that there is no new conspiracism. Muirhead and Rosenblum have misconstrued their chief examples of new conspiracism and mischaracterized classic conspiracism. The non-existence of a new conspiracism matters. If those studying contemporary conspiracism suppose that many of the objects of their study are theory-free then they are liable to fail to examine the theories that actually are driving contemporary conspiracism. Also, if they suppose that they are confronting an entirely new phenomenon then they are in danger of failing to learn lessons from the rich history of conspiracy theorizing. (shrink)

An understanding of logic is essential to computer science. This book provides a highly accessible account of the logical basis required for reasoning about computer programs and applying logic in fields like artificial intelligence. The text contains extended examples, algorithms, and programs written in Standard ML and Prolog. No prior knowledge of either language is required. The book contains a clear account of classical first-order logic, one of the basic tools for program verification, as well as an introductory survey of (...) modal and temporal logics and possible world semantics. An introduction to intuitionistic logic as a basis for an important style of program specification is also featured in the book. (shrink)

We are grateful for the thoughtful attention the commentators and editors have given our paper. They raise many substantive points that warrant a response, but for reasons of journal space our reply must be brief. In our paper, we argue for an amended hybrid account of ‘disease’ in human medicine that takes normative ethics seriously, guards against pernicious classifications of disease and reconnects the concept with the goals of healthcare institutions in which disease diagnosis is embedded. Carel and Tekin, in (...) their respective pieces, raise issues about the objectivity and effective operationalisation of our account, Agar makes an ‘evolutionary’ case for disease concept eliminativism in mental health, and Wakefield and Conrad contend that our proposed modification to the harmful dysfunction account is unnecessary and undesirable. We will respond to each in turn. The rational moral justification component of our account raises difficult moral epistemological questions regarding which reasons are the weightiest ones and who should be allowed to participate in the rational justification process. Carel suggests that inevitable disagreement on this point undermines the alleged objectivity of our proposal. We agree with Tekin, however, that this is a feature of our account rather than a bug. What constitutes a good reason in moral deliberation is a question that goes to the very philosophical foundation of ethics ; but disagreement over which reasons are the weightiest ones does not prevent ethicists and policy makers from objectively assessing the strength of moral arguments by evaluating their empirical adequacy and logical structure, and this can take us a long way toward adjudication. The fact that rational justification has been used to support immoral practices and institutions does not warrant abandoning a reason-based approach to ethics any more than …. (shrink)

The concept of disease remains hotly contested. In light of problems with existing accounts, some theorists argue that the disease concept ought to be eliminated. We answer this skeptical challenge by reframing the discussion in terms of the role that the disease concept plays in the complex network of health-care institutions in which it is deployed. We argue that while prevailing accounts do not suffer from the particular defects that critics have identified, they do suffer from other deficits, and this (...) leads us to propose a new account that satisfies the desiderata for a concept of disease in human medicine. (shrink)

Vaccine refusal occurs for a variety of reasons. In this article we examine vaccine refusals that are made on conscientious grounds; that is, for religious, moral, or philosophical reasons. We focus on two questions: first, whether people should be entitled to conscientiously object to vaccination against contagious diseases ; second, if so, to what constraints or requirements should conscientious objection to vaccination be subject. To address these questions, we consider an analogy between CO to vaccination and CO to military service. (...) We argue that conscientious objectors to vaccination should make an appropriate contribution to society in lieu of being vaccinated. The contribution to be made will depend on the severity of the relevant disease, its morbidity, and also the likelihood that vaccine refusal will lead to harm. In particular, the contribution required will depend on whether the rate of CO in a given population threatens herd immunity to the disease in question: for severe or highly contagious diseases, if the population rate of CO becomes high enough to threaten herd immunity, the requirements for CO could become so onerous that CO, though in principle permissible, would be de facto impermissible. (shrink)

Jon Haidt, a leading figure in contemporary moral psychology, advocates a participation-centric view of religion, according to which participation in religious communal activity is significantly more important than belief in explaining religious behaviour and commitment. He describes the participation-centric view as ‘Straight out of Durkheim’. I argue that this is a misreading of Durkheim, who held that religious behaviour and commitment are the joint products of belief and participation, with neither belief nor participation being considered more important than the other. (...) I further argue that recent evidence from the cognitive science of religion provides support for Durkheim’s balanced account of religion and counts strongly against Haidt’s participation-centric view of religion. I suggest that Haidt’s adherence to the participation-centric view of religion is better explained by his desire to accept an account of religion that is consistent with his social intuitionist moral psychology than by his desire to accept an account of religion that accords with available scientific evidence about religion. (shrink)

An international team of ethicists refresh the debate about human enhancement by examining whether resistance to the use of technology to enhance our mental and physical capabilities can be supported by articulated philosophical reasoning, or explained away, e.g. in terms of psychological influences on moral reasoning.

Steven Pinker has said that one of the most important questions humans can ask of themselves is whether moral progress has occurred or is likely to occur. Buchanan and Powell here address that question, in order to provide the first naturalistic, empirically-informed and analytically sophisticated theory of moral progress--explaining the capacities in the human brain that allow for it, the role of the environment, and how contingent and fragile moral progress can be.

John Dupr argues that 'scientific imperialism' can result in 'misguided' science being considered acceptable. 'Misguided' is an explicitly normative term and the use of the pejorative 'imperialistic' is implicitly normative. However, Dupr has not justified the normative dimension of his critique. We identify two ways in which it might be justified. It might be justified if colonisation prevents a discipline from progressing in ways that it might otherwise progress. It might also be justified if colonisation prevents the expression of important (...) values in the colonised discipline. This second concern seems most pressing in the human sciences. (shrink)

Commentators on The Evolution of Moral Progress: A Biocultural Theory raise a number of metaethical and moral concerns with our analysis, as well as some complaints regarding how we have interpreted and made use of the contemporary evolutionary and social sciences of morality. Some commentators assert that one must already presuppose a moral theory before one can even begin to theorize moral progress; others query whether the shift toward greater inclusion is really a case of moral progress, or whether our (...) theory can be properly characterized as ‘naturalistic’. Other commentators worry that we have uncritically accepted the prevailing evolutionary explanation of morality, even though it gives short shrift to the role of women or presupposes an oversimplified view of the environment in which the core elements of human moral psychology are thought to have congealed. Another commentator laments that we did not make more extensive use of data from the social sciences. In this reply, we engage with all of these constructive criticisms and show that although some of them are well taken, none undermine the core thesis of our book. (shrink)

Inspired by Smith, Ben-Moshe suggests that we should only accommodate conscientious objections in medicine based on moral beliefs that are true, or which closely approximate to the truth. He suggests that we can identify moral truths by consulting our consciences when our consciences adopt the standpoint of an impartial spectator. He also suggests some changes to our current practices in regard to the management of CO in medicine that would be needed were his proposal to be adopted. Here, I argue (...) that both Smith and Ben-Moshe underestimate the difficulties involved in adopting the standpoint of an impartial spectator. In particular, both authors fail to recognise the extent to which cognitive bias and ideological commitments prevent many of us from identifying the standpoint of an impartial spectator and also prevent us from realising that we are failing to be impartial. I also consider some different changes to current practices that would be needed if we were to take on Ben-Moshe’s approach to CO in medicine while also recognising the difficulties involved in adopting the standpoint of an impartial spectator. (shrink)

Economic models are founded in the idea of taking individuals' preferences as both known and given. This article explores the evolution of personal preferences, within a context of both entrepreneurial discovery and Objectivist philosophy. It begins by formalizing Ayn Rand's theory of Objectivism applied to human values, and continues by modeling preference changes similar to Schumpeter's theory of creative destruction—a process of self-discovery. Next the role of societal factors is examined in forming shared preference sets. Finally, the article describes how (...) the strength of human preferences is used to narrow choice sets in the presence of greater consumption options. (shrink)

The complexity that we observe in nature can often be explained in terms of cooperative behavior. For example, the major transitions of evolution required the emergence of cooperation among the lower-level units of selection, which led to specialization through division-of-labor ultimately resulting in spontaneous order. There are two aspects to address explaining how such cooperation is sustained: how free-riders are prevented from free-riding on the benefits of cooperative tasks, and just as importantly, how those social benefits arise. We review these (...) problems from an economic perspective, and highlight how ideas from economics can help us to better understand how the benefits of social interactions arise, how they are sustained, and how they affect the underlying social dilemmas. (shrink)

Despite several decades of debate, the concept of disease remains hotly contested. The debate is typically cast as one between naturalism and normativism, with a hybrid view that combines elements of each staked out in between. In light of a number of widely discussed problems with existing accounts, some theorists argue that the concept of disease is beyond repair and thus recommend eliminating it in a wide range of practical medical contexts. Any attempt to reframe the ‘disease’ discussion should answer (...) the more basic sceptical challenge, and should include a meta-methodological critique guided by our pragmatic expectations of what the disease concept ought to do given that medical diagnosis is woven into a complex network of healthcare institutions. In this paper, we attempt such a reframing, arguing that while prevailing accounts do not suffer from the particular defects that prominent critics have identified, they do suffer from other deficits—and this leads us to propose an amended hybrid view that places objectivist approaches to disease on stronger theoretical footing, and satisfies the institutional-ethicaldesiderataof a concept of disease in human medicine. Nevertheless, we do not advocate a procrustean approach to ‘disease’. Instead, we recommend disease concept pluralism between medical and biological sciences to allow the concept to serve the different epistemic and institutional goals of these respective disciplines. (shrink)

Jon Haidt, a leading figure in contemporary moral psychology, advocates a participation-centric view of religion, according to which participation in religious communal activity is significantly more important than belief in explaining religious behaviour and commitment. He describes the participation-centric view as ‘Straight out of Durkheim’. I argue that this is a misreading of Durkheim, who held that religious behaviour and commitment are the joint products of belief and participation, with neither belief nor participation being considered more important than the other. (...) I further argue that recent evidence from the cognitive science of religion provides support for Durkheim’s balanced account of religion and counts strongly against Haidt’s participation-centric view of religion. I suggest that Haidt’s adherence to the participation-centric view of religion is better explained by his desire to accept an account of religion that is consistent with his social intuitionist moral psychology than by his desire to accept an account of religion that accords with available scientific evidence about religion. (shrink)

Stephen Jay Gould argued that replaying the ‘tape of life’ would result in radically different evolutionary outcomes. Recently, biologists and philosophers of science have paid increasing attention to the theoretical importance of convergent evolution—the independent origination of similar biological forms and functions—which many interpret as evidence against Gould’s thesis. In this paper, we examine the evidentiary relevance of convergent evolution for the radical contingency debate. We show that under the right conditions, episodes of convergent evolution can constitute valid natural experiments (...) that support inferences regarding the deep counterfactual stability of macroevolutionary outcomes. However, we argue that proponents of convergence have problematically lumped causally heterogeneous phenomena into a single evidentiary basket, in effect treating all convergent events as if they are of equivalent theoretical import. As a result, the ‘critique from convergent evolution’ fails to engage with key claims of the radical contingency thesis. To remedy this, we develop ways to break down the heterogeneous set of convergent events based on the nature of the generalizations they support. Adopting this more nuanced approach to convergent evolution allows us to differentiate iterated evolutionary outcomes that are probably common among alternative evolutionary histories and subject to law-like generalizations, from those that do little to undermine and may even support, the Gouldian view of life. (shrink)

Gilbert Harman argues that the warrant for the lay attribution of character traits is completely undermined by the “fundamental attribution error” (FAE). He takes it to have been established by social psychologists, that the FAE pervades ordinary instances of lay person perception. However, examination of recent work in psychology reveals that there are good reasons to doubt that the effects observed in experimental settings, which ground the case for the FAE, pervade ordinary instances of person perception. Furthermore, it is possible (...) to make sense of these experimental results without invoking the FAE. Harman's argument against lay character trait attribution is unsubstantiated. (shrink)

Many philosophers invoke the "wisdom of nature" in arguing for varying degrees of caution in the development and use of genetic enhancement technologies. Because they view natural selection as akin to a master engineer that creates functionally and morally optimal design, these authors tend to regard genetic intervention with suspicion. In Part II, we examine and ultimately reject the evolutionary assumptions that underlie the master engineer analogy (MEA). By highlighting the constraints on ordinary unassisted evolution, we show how intentional genetic (...) modification can overcome many of the natural impediments to the human good. Our contention is that genetic engineering offers a solution that is more eff icient, reliable, versatile, and morally palatable than the lumbering juggernaut of Darwinian evolution. In Part III, we evaluate a recent attempt to ground precautionary enhancement heuristics in adaptive etiology. Our problem with this approach is two-fold: first, it is based on the same "strong adaptationist" interpretation of evolution that motivates the flawed MEA, and second, the etiological concept of function on which it relies provides indirect and potentially misleading information about the likely consequences of genetic intervention. We offer instead enhancement criteria based on causal relationships in ontogeny. We conclude that rather than grounding a presumption against deliberate genetic modification, the causal structure of the living world gives us good moral reason to pursue it. (shrink)

The dismissive attitude of intellectuals toward conspiracy theorists is considered and given some justification. It is argued that intellectuals are entitled to an attitude of prima facie skepticism toward the theories propounded by conspiracy theorists, because conspiracy theorists have an irrational tendency to continue to believe in conspiracy theories, even when these take on the appearance of forming the core of degenerating research program. It is further argued that the pervasive effect of the "fundamental attribution error" can explain the behavior (...) of such conspiracy theorists. A rival approach due to Brian Keeley, which involves the criticism of a subclass of conspiracy theories on epistemic grounds, is considered and found to be inadequate. Key Words: conspiracy • conspiracy theories • conspiracy theorizing. (shrink)

Stephen Jay Gould argued that replaying the “tape of life” would result in a radically different evolutionary outcome. Some biologists and philosophers, however, have pointed to convergent evolution as evidence for robust replicability in macroevolution. These authors interpret homoplasy, or the independent origination of similar biological forms, as evidence for the power of natural selection to guide form toward certain morphological attractors, notwithstanding the diversionary tendencies of drift and the constraints of phylogenetic inertia. In this paper, I consider the implications (...) of homoplasy for the debate over the nature of macroevolution. I argue that once the concepts of contingency and convergence are fleshed out, it becomes clear that many instances of homoplasy fail to negate Gould’s overarching thesis, and may in fact support a Gouldian view of life. My argument rests on the distinction between parallelism and convergence, which I defend against a recent challenge from developmental biology. I conclude that despite the difficulties in defining and identifying parallelism, the concept remains useful and relevant to the contingency controversy insofar as it underscores the common developmental origins of iterated evolution. (shrink)

Abstract Following Clarke (2002), a Lakatosian approach is used to account for the epistemic development of conspiracy theories. It is then argued that the hypercritical atmosphere of the internet has slowed down the development of conspiracy theories, discouraging conspiracy theorists from articulating explicit versions of their favoured theories, which could form the hard core of Lakatosian research pro grammes. The argument is illustrated with a study of the “controlled demolition” theory of the collapse of three towers at the World Trade (...) Center on September 11, 2001. (shrink)

The precautionary principle (“the Principle”) has been widely embraced as the new paradigm for contending with biological and environmental risk in the context of emerging technologies. Increasingly, it is being incorporated into domestic, supranational, and international legal regimes as part of a general overhaul of health and environmental regulation.1 Codifications of the Principle typically are vague, with their content intentionally left for scholars to debate, decision makers to interpret, and the courts to flesh out through case law. Generally speaking, the (...) Principle holds that scientific uncertainty will not be a bar to preventive regulatory action, and that decision makers should err on the side of .. (shrink)

Traditional conservative arguments against the possibility of moral progress relied on underevidenced assumptions about the limitations of human nature. Contemporary thinkers have attempted to fill this empirical gap in the conservative argument by appealing to evolutionary science. Such “evoconservative” arguments fail because they overstate the explanatory reach of evolutionary theory. We maintain that no adequate evolutionary explanation has been given for important features of human morality, namely cosmopolitan and other “inclusivist” moral commitments. We attribute these evolutionarily anomalous features to a (...) capacity for open-ended normativity, which presents a serious obstacle to theorists who wish to draw substantive moral and political lessons from human evolutionary history. (shrink)

Liberal proponents of genetic engineering maintain that developing human germline modification technologies is morally desirable because it will result in a net improvement in human health and well-being. Skeptics of germline modification, in contrast, fear evolutionary harms that could flow from intervening in the human germline, and worry that such programs, even if well intentioned, could lead to a recapitulation of the scientifically and morally discredited projects of the old eugenics. Some bioconservatives have appealed as well to the value of (...) retaining our “given” human biological nature as a reason for restraining the development and use of human genetic modification technologies even where they would tend to increase well-being. In this article, I argue that germline intervention will be necessary merely to sustain the levels of genetic health that we presently enjoy for future generations—a goal that should appeal to bioliberals and bioconservatives alike. This is due to the population-genetic consequences of relaxed selection pressures in human populations caused by the increasing efficacy and availability of conventional medicine. This heterodox conclusion, which I present as a problem of intergenerational justice, has been overlooked in medicine and bioethics due to certain misconceptions about human evolution, which I attempt to rectify, as well as the sordid history of Darwinian approaches to medicine and social policy, which I distinguish from the present argument. (shrink)

In the face of argument to the contrary, it is shown that there is defensible middle ground available for entity realism, between the extremes of scientific realism and empiricist antirealism. Cartwright's ([1983]) earlier argument for defensible middle ground between these extremes, which depended crucially on the viability of an underdeveloped distinction between inference to the best explanation (IBE) and inference to the most probable cause (IPC), is examined and its defects are identified. The relationship between IBE and IPC is clarified (...) and a revised version of Cartwright's argument for defensible middle ground, which is free of the identified defects, is presented. (shrink)

A common worry about the genetic engineering of human beings is that it will reduce human genetic diversity, creating a biological monoculture that could not only increase our susceptibility to disease but also hasten the extinction of our species. Thus far, however, the evolutionary implications of human genetic modification remain largely unexplored. In this paper, I consider whether the widespread use of genetic engineering technology is likely to narrow the present range of genetic variation, and if so, whether this would (...) in fact lead to the evolutionary harms that some authors envision. By examining the nature of biological variation and its relation to population immunity and evolvability, I show that not only will genetic engineering have a negligible impact on human genetic diversity, but also that it will be more likely to ensure rather than undermine the health and longevity of the human species. (shrink)

The model of major transitions in evolution devised by Maynard Smith and Szathmáry has exerted tremendous influence over evolutionary theorists. Although MTE has been criticized for inconsistently combining different types of event, its ongoing appeal lies in depicting hierarchical increases in complexity by means of evolutionary transitions in individuality. In this paper, we consider the implications of major evolutionary events overlooked by MTE and its ETI-oriented successors, specifically the biological oxygenation of Earth, and the acquisitions of mitochondria and plastids. By (...) reflecting on these missed events, we reveal a central philosophical disagreement over the explanatory goals of major transitions theory that has yet to be made explicit in the literature. We go on to argue that this philosophical disagreement is only reinforced by Szathmáry’s recent revisions of MTE in the form of MTE 2.0. This finding motivates us to propose an alternative explanatory strategy: specifically, an interactionist metabolic perspective on major transitions. A metabolic framework not only avoids many of the criticisms that beset classic and revised MTE models, but also accommodates missing events and provides crucial explanatory components for standard major transitions. Although we do not provide a full-blown alternative theory and do not claim to achieve unity, we explain why foregrounding metabolism is crucial for any attempt to capture the major turning points in evolution, and why it does not lead to unmanageable pluralism. (shrink)

We humans can enhance some of our mental and physical abilities above the normal upper limits for our species with the use of particular drug therapies and medical procedures. We will be able to enhance many more of our abilities in more ways in the near future. Some commentators have welcomed the prospect of wide use of human enhancement technologies, while others have viewed it with alarm, and have made clear that they find human enhancement morally objectionable. The Ethics of (...) Human Enhancement examines whether the reactions can be supported by articulated philosophical reasoning, or perhaps explained in terms of psychological influences on moral reasoning. An international team of ethicists refresh the debate with new ideas and arguments, making connections with scientific research and with related issues in moral philosophy. (shrink)

How are justifications for religious violence developed and dothey differ from secular justifications for violence? Can liberalsocieties tolerate potentially violent religious groups? Can thosewho accept religious justifications for violence be dissuaded fromacting violently? Including six in-depth contemporary case studies,The Justification of Religious Violence is the first book toexamine the logical structure of justifications of religiousviolence. The first book specifically devoted to examining the logicalstructure of justifications of religious violence Seeks to understand how justifications for religious violenceare developed and how or (...) if they differ from ordinary secularjustifications of violence Examines 3 widely employed premises used in religiousjustifications of violence – ‘cosmic war’, theimportance of the afterlife, and ‘sacred values’ Considers to what extent liberal democratic societies shouldtolerate who hold that their religion justifies violent acts Reflects on the possibility of effective policy measures topersuade those who believe that violent action is justified byreligion, to refrain from acting violently Informed by recent work in psychology, cognitive science,neuroscience and evolutionary biology Part of the Blackwell Public Philosophy Series. (shrink)

An analogy is sometimes drawn between the proper treatment of conscientious objectors in healthcare and in military contexts. In this paper, I consider an aspect of this analogy that has not, to my knowledge, been considered in debates about conscientious objection in healthcare. In the USA and elsewhere, tribunals have been tasked with the responsibility of recommending particular forms of alternative service for conscientious objectors. Military conscripts who have a conscientious objection to active military service, and whose objections are deemed (...) acceptable, are required either to serve the military in a non-combat role, or assigned some form of community service that does not contribute to the effectiveness of the military. I argue that consideration of the role that military tribunals have played in determining the appropriate form of alternative service for conscripts who are conscientious objectors can help us to understand how conscientious objectors in healthcare ought to be treated. Additionally, I show that it helps us to address the vexed issue of whether or not conscientious objectors who refuse to provide a service requested by a patient should be required to refer that patient to another healthcare professional. (shrink)

Appeals to intuitions as evidence in philosophy are challenged by experimental philosophers and other critics. A common response to experimental philosophical criticisms is to hold that only professional philosophers? intuitions count as evidence in philosophy. This ?expert intuitions defence? is inadequate for two reasons. First, recent studies indicate significant variability in professional philosophers? intuitions. Second, the academic literature on professional intuitions gives us reasons to doubt that professional philosophers develop truth-apt intuitions. The onus falls on those who mount the expert (...) intuitions defence to meet these objections because it is implicitly being claimed that training and practice caused professional philosophers to acquire reliably accurate intuitions and we are owed an account of how this transformation takes place. A possible response to this situation is to attempt to reform philosophical practice to improve the quality of intuitions. Another possible response, advocated here, is to avoid appeals to intuitions as evidence. (shrink)