Is time travel just a confusing plot device deployed by science fiction authors and Hollywood filmmakers to amaze and amuse? Or might empirical data prompt a scientific hypothesis of time travel? Structured on a fascinating dialogue involving  ...

On the ethics of extending human life: healthy people have a right to carry on livingHumanity has long demonstrated a paradoxical ambivalence concerning the extension of a healthy human lifespan. Modest health extension has been universally sought, whereas extreme health extension has been regarded as a snare and delusion—a dream beyond all others at first blush, but actually something we are better off without. The prevailing pace of biotechnological progress is bringing ever closer the day when humanity will be able (...) to act on the latter view by rejecting a clear and present opportunity for much longer healthy lives. Indeed, some biogerontologists contend that that day has already arrived, to the extent that our hesitation in embarking on a vigorous “war on ageing” is already delaying the point at which a cure for ageing will be developed. Here I consider whether our present caution concerning the wisdom of truly curing ageing is likely to survive the increased scrutiny that it will receive in coming years as a result of these technical advances. I conclude that it will not, because of its irreconcilability with values that are more deeply held by the large majority of humanity than any values that argue against the quest for a cure. I further conclude that all the major current reasons given for not curing ageing are mere crutches to help us cope with the immutability of ageing that we have been brought up to accept. Our failure to set aside such irrationality is already shortening potential longevity—quite probably of those already alive today—to a staggering degree. Once we realise this, our determination to consign human ageing to history will be second …. (shrink)

The paper engages Christopher Boorse’s Bio-Statistical Theory. In its current form, BST runs into a significant challenge. For BST to account for its central tenet—that lower-level part-dysfunction is sufficient for higher-level pathology—it must provide criteria for how to decide which lower-level parts are the ones to be analyzed for health or pathology. As BST is a naturalistic theory, such choices must be based solely on naturalistic considerations. An argument is provided to show that, if BST is to be preserved, such (...) parthood choices are based on non-naturalistic considerations. We demonstrate that even when parthood choices are based on the best way to preserve BST, there are counterintuitive results which bring the central tenet of BST into question. (shrink)

Participants compared the mental capacities of various human and nonhuman characters via online surveys. Factor analysis revealed two dimensions of mind perception, Experience and Agency. The dimensions predicted different moral judgments but were both related to valuing of mind.

A great philosopher will change the way you think about your life. For most of human history, religion provided a clear explanation of life and death. But in the late 19th and early 20th centuries new ideas -- from psychiatry to evolution to Communist -- seemed to suggest that our fate was now in our own hands. We would ourselves become God. This is the theme of a remarkable new book by one of the world's greatest lving philosophers. It is (...) a brilliant and frightening look at the problems and opportunities of a world coming to grips with humankind's now solitary, unaided place in the universe. Gray takes two major examples: the belief that the science-backed Communism of the new USSR could reshape the planet, and the belief among a group of Edwardian intellectuals -- popularized through mediums and automatic writing -- that there was a non-religious form of life after death. Gray presents an extraordinary cast of philosophers, journalists, politicians, charlatans and mass murderers, all of whom felt driven by a specifically scientific and modern world view. He raises a host of fascinating questions about what it means to be human. The implications of Gray's book will haunt its readers for the rest of their lives. (shrink)

The essays range from Hegel and Modernism to Marcel Duchamp and the Avant-Garde, postmodern poetics, boredom and Proust, the romance of Arendt and Heidegger, ...

Current debates about “Darwinizing culture” have typically focused on the validity of memetics. In this article we argue that meme-like inheritance is not a necessary requirement for descent with modification. We suggest that an alternative and more productive way of Darwinizing culture can be found in the application of phylogenetic methods. We review recent work on cultural phylogenetics and outline six fundamental questions that can be answered using the power and precision of quantitative phylogenetic methods. However, cultural evolution, like biological (...) evolution, is often far from treelike. We discuss the problems reticulate evolution can cause for phylogenetic analyses and suggest ways in which these problems can be overcome. Our solutions involve a combination of new methods for the study of cultural evolution , and the triangulation of different lines of historical evidence. Throughout we emphasize that most debates about cultural phylogenies can only be settled by empirical research rather than armchair speculation. (shrink)

The present study examined whether a dissociation among formats for rational numbers can be obtained in tasks that require comparing a number to a non-symbolic quantity. In Experiment 1, college students saw a discrete or else continuous image followed by a rational number, and had to decide which was numerically larger. In Experiment 2, participants saw the same displays but had to make a judgment about the type of ratio represented by the number. The magnitude task was performed more quickly (...) using decimals, whereas the relation task was performed more accurately with fractions. The pattern observed for percentages was very similar to that for decimals. A dissociation between magnitude comparison and relational processing with rational numbers can be obtained when a symbolic number must be compared to a non-symbolic display. (shrink)

The general thesis which I should wish to sustain on this topic is by no means new. It is, briefly, that even in the Republic , where the views on art which Plato propounds are notoriously unsatisfactory to the modern mind, this unsatisfactoriness is not due to any lack of aesthetic sympathy on Plato's part, but on the contrary to what is almost an excess of it. The position as far as I can understand it is this: the true artist (...) is the philosopher, and true artistic insight is episteme . The work of art par excellence is primarily the philosopher's own life-that is, the philosopher himself. (shrink)

The self is a common yet unclear theme in addiction studies. William James's model of self provides a framework to explore the experience of self. His model details the subjective and objective constituents, the sense of self‐continuity through time, and the ephemeral and plural nature of the changing self. This exploration yields insights into the self that can be usefully applied to subjective experiences with psychoactive drugs of addiction. Results of this application add depth to the common understanding of self (...) in addiction, acknowledge the importance of feelings and choice in the sense of self created in addiction experiences, and affirm the values salient to these interior experiences in addiction. These results suggest meaning derived from those values, and provide important background knowledge for the nurse interacting with these clients. (shrink)

The nature/nurture debate is not dead. Dichotomous views of development still underlie many fundamental debates in the biological and social sciences. Developmental systems theory offers a new conceptual framework with which to resolve such debates. DST views ontogeny as contingent cycles of interaction among a varied set of developmental resources, no one of which controls the process. These factors include DNA, cellular and organismic structure, and social and ecological interactions. DST has excited interest from a wide range of researchers, from (...) molecular biologists to anthropologists, because of its ability to integrate evolutionary theory and other disciplines without falling into traditional oppositions. The book provides historical background to DST, recent theoretical findings on the mechanisms of heredity, applications of the DST framework to behavioral development, implications of DST for the philosophy of biology, and critical reactions to DST. (shrink)

Our environmental crisis is commonly explained as a product of a set of attitudes and beliefs about the world which have been developed by post‐Cartesian technological society. Deep ecologists claim that the crisis can only be overcome by adopting an alternative non‐technological paradigm, such as can be discovered in non‐Western cultures. In this paper I express misgivings about the use of the expression ‘Paradigm’ by deep ecologists, question the claim that a science‐based world‐view inevitably fosters manipulative and exploitative attitudes to (...) the natural world, suggest that non‐technological cultures do not necessarily provide exemplary and superior models for relating to the natural world, and defend a scientific naturalism as a satisfying way of realising our unity with the natural world. (shrink)

Given the growing popularity of online methods for researchers and the increasing awareness of the levels of harassment and abuse directed at women online—especially women expressing feminist views—it is critical that we address the implications of online abuse for feminist researchers. Focussing on an often hidden yet significant part of our methodological decisions and recruitment, this paper details the online abuse levelled by men's rights activists against a research project on women's experiences of men's stranger intrusions in public space. It (...) argues for the need to locate such experiences within a violence-against-women frame, extending the concept of a continuum of sexual violence. Such an extension renders visible the added labour of ‘safety work’, which forms an invisible backdrop to the methodological decisions of many feminist researchers. (shrink)

The feasibility of reversing human aging within a matter of decades has traditionally been dismissed by all professional biogerontologists, on the grounds that not only is aging still poorly understood, but also many of those aspects that we do understand are not reversible by any current or foreseeable therapeutic regimen. This broad consensus has recently been challenged by the publication, by five respected experimentalists in diverse subfields of biogerontology together with three of the present authors, of an article (Ann NY (...) Acad Sci 959, 452–462) whose conclusion was that all the key components of mammalian aging are indeed amenable to substantial reversal (not merely retardation) in mice, with technology that has a reasonable prospect of being developed within about a decade. Translation of that panel of interventions to humans who are already alive, within a few decades thereafter, was deemed potentially feasible (though it was not claimed to be likely). If the prospect of controlling human aging within the foreseeable future cannot be categorically rejected, then it becomes a matter of personal significance to most people presently alive. Consequently, we suggest that serious public debate on this subject is now warranted, and we survey here several of the biological, social and political issues relating to it. BioEssays 24:667–676, 2002. © 2002 Wiley Periodicals, Inc. (shrink)

Hannah Arendt's early biography of Rahel Varnhagen, an eighteenth-century German-Jew, provides a revolutionary feminist component to her political theory. In it, Arendt grapples with the theoretical constitution of a female subject and relates Jewish alterity, identity, and history to feminist politics. Because she understood the "female condition" of difference as belonging to the political subject rather than an autonomous self, her theory entails a "politics of alterity" with applications for feminist practice.

Hannah Arendt's early biography of Rahel Varnhagen, an eighteenth-century German-Jew, provides a revolutionary feminist component to her political theory. In it, Arendt grapples with the theoretical constitution of a female subject and relates Jewish alterity, identity, and history to feminist politics. Because she understood the "female condition" of difference as belonging to the political subject rather than an autonomous self, her theory entails a "politics of alterity" with applications for feminist practice.

In lieu of an abstract, here is a brief excerpt of the content:Medical Tourism:Crossing Borders to Access Health CareHarriet Hutson Gray (bio) and Susan Cartier Poland (bio)Traveling abroad for one's health has a long history for the upper social classes who sought spas, mineral baths, innovative therapies, and the fair climate of the Mediterranean as destinations to improve their health. The newest trend in the first decade of the twenty-first century has the middle class traveling from developed countries to (...) those with emerging economies to avoid treatment delays, prohibitive costs for life-saving procedures, or simply high costs for elective surgery. Others leave to have access to assisted suicide in countries that have legalized it: Belgium, The Netherlands, and Switzerland. This new era of globalization in health care has arrived without the benefit of international standards, government oversight, or ethical and legal review.Howard Staab, a self-employed carpenter from North Carolina, flew to India for his medically necessary heart surgery, scheduled a side trip to the Taj Mahal, and returned home to work in North Carolina. He spent a total of less than $10,000, instead of the $200,000 required from the local hospital (I, Milstein and Smith 2006).At first blush, the outsourcing of medical care to India seems to be a particular solution for a particular problem. However, the particularity of Mr. Staab is not unique. His experience is emblematic of those patients in the United States with a medical need for major and elective procedures, but who also must bear the total cost of these procedures. These middle-class, under-insured Americans go abroad.In tandem with increasingly aggressive marketing campaigns, American hospitals and companies have begun to leverage their connections in Asia to grow the medical tourism business into a major economic force. What are the consequences of this?Several authors point to the effect on the host country's population, particularly the poor, to be pushed farther down the queue to receive adequate, affordable care. Resources are applied to the foreign trade instead of building the local [End Page 193] medical infrastructure. Another potential problem is the obligation of the home-country physician to provide follow-up care. What are the legal ramifications when the procedure was illegal to begin with? Are there opportunities for redress for medical errors?These factors may be converging into a "perfect storm" for health care in the U.S., in which the potential participation of the major insurance companies in promoting offshore care will be the tipping point in the precarious structure that represents the economic currents in health care. Third-party administrators and self-funded employers may be on the cutting edge in 2009 by providing incentives to employees to travel overseas for care.I. Economic ConsiderationsConnell, John. Medical Tourism: Sea, Sun, Sand and... Surgery. Tourism Management 27: 1093–1100, 2006.As evidence of the interest of traditional tour operators in this newer twist on the industry, the author explores medical tourism as an element of the growth of world tourism. In promoting medical tourism, he urges consideration of such issues as the privatization of health care, the foundational role of technology, and uneven access to health resources.Dunn, Philip. Medical Tourism Takes Flight. H and HN: Hospitals and Health Networks: 40–44, November 2007.Writing for U.S. health care executives, Dunn emphasizes that the reality of medical tourism competes with the local medical center for patients and their insurance dollars in a significant way. He examines the possibility that U.S. insurance plans soon may offer to pay for what is currently a cash only business and that the economic impact to the local medical center could be significant or even devastating.Frontiers of Health Services Management [Selected Articles] 24 (2), Winter 2007.In "Managing Healthcare Services in the Global Marketplace" (pp. 3–18), Bruce J. Fried and Dean M. Harris consider legal, ethical, and financial implications of the international workforce. In "Globalization of Health Care" (pp. 19–30), Lynn Schroth and Ruthy Khawahja point out that the transfer of comprehensive management expertise and intellectual property from U.S. medical centers to international sites is driving the success of collaboration between U.S. and foreign health care centers. In "Is... (shrink)

ABSTRACT According to many contemporary observers, including Hillel Steiner [1], Herbert Hart [2], John Gray [3] and Isaiah Berlin [4], the equal liberty principle lies at the heart of liberalism. Yet despite its central place in liberal theory, it has attracted little critical appraisal. This paper seeks to examine the meaning and some of the policy implications of the equal liberty principle, paying particular attention to the elucidations produced by Herbert Spencer, Steiner and Hart — the only systematic analysts (...) of the notion of equal liberty. In part 1, the meaning of the equal liberty principle is discussed, and it is shown to be intrinsically ambivalent. In part 2, where certain policy implications are considered, the conclusion is reached that the equal liberty principle is ambiguous in its policy prescriptions, and requires to be supplemented by some other principle before it can be unequivocally applied. (shrink)

According to Tye's PANIC theory of consciousness, perceptual states of creatures which are related to a disjunction of external contents will fail to represent sensorily, and thereby fail to be conscious states. In this paper I argue that heat perception, a form of perception neglected in the recent literature, serves as a counterexample to Tye's radical externalist claim. Having laid out Tye's absent qualia scenario, the PANIC theory from which it derives and the case of heat perception as a counterexample, (...) I defend the putative counterexample against three possible responses: (1) that heat perception represents general (i.e. non-disjunctive) intrinsic properties of objects, (2) that heat perception represents the non-specific heat energy that is transferred between a subject's body and another body and (3) that heat perception exclusively represents heat properties of the subjects own body. (shrink)

Spinoza: Moral Philosophy Like many European philosophers in the early modern period, Benedict de Spinoza developed a moral philosophy that fused the insights of ancient theories of virtue with a modern conception of humans, their place in nature, and their relationship to God. Unlike many other authors in this period, however, Spinoza was strongly … Continue reading Spinoza: Moral Philosophy →.

Over recent years, evidence has been accumulating in favour of the free radical theory of aging, first proposed by Harman. Despite this, an understanding of the mechanism by which cells might succumb to the effects of free radicals has proved elusive. This paper proposes such a mechanism, based on a previously unexplored hypothesis for the proliferation of mutant mitochondrial DNA: that mitochondria with reduced respiratory function, due to a mutation or deletion affecting the respiratory chain, suffer less frequent lysosomal degradation, (...) because they inflict free radical damage more slowly on their own membranes. Once such a mutation occurs in a mitochondrion of a non‐dividing cell, therefore, mitochondria carrying it will rapidly populate that cell, thereby destroying the cell's respiratory capability. The accumulation of cells that have undergone this transition results in aging at the organismal level. The consistency of the hypothesis with known facts is discussed, and technically feasible tests are suggested, of both the proposed mechanism and its overall contribution to mammalian aging. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Joanne Cutting-Gray HANNAH ARENDT'S RAHEL VARNHAGEN Hannah Arendt fled Nazi Germany in 1933, a year she called the end of Jewish history. She was 27 years old at the time and carried with her a manuscript that was later to become the peculiar biography of an eighteenth-century German-Jewish "pariah," Rahel Varnhagen (1771-1833). The Life of a fewish Woman, subtitle of the biography by Arendt, distills the largely unpublished (...) Varnhagen correspondence and marks the impact of that life upon German-Jewish history.1 Published more than "half a lifetime" later in 1957, it assays the politics of form in a highly unusual manner. By expunging all detail in order to analyze Varnhagen's introspection, Arendt implicitly questions selfhood as the form for identity and as the appropriate form for biography. She reveals that seeking to preserve the self determines the blank dumbness of an unnarratable life. Rahel Levin (Antonie Friederike Robert) Varnhagen, or simply "Rahel " as Arendt calls her, lived a life as complicated as her many names. The tortured relation she had to her identity, her insatiable preoccupation with self, reflects an effort to eradicate herJewishness by baptism and marriage and becomes a paradigm of a story about a woman lost to a sense of others and herself. Neither rich, cultivated, nor beautiful, Rahel lived her unhappiness fervently, with an ecstasy that made her appear to others as startlingly original. This helps to explain how she came to preside over the most important intellectual salon in Germany during the late eighteenth century. Princes, intellectuals, and artists flocked to her attic apartment, attracted by the impenetrable spectacle of her despair. Rahel's intensity pulled others into her orbit—including, one-hundred years later, the intense and self-absorbed Arendt at the beginning Philosophy and Literature, © 1991, 15: 229-245 230Philosophy and Literature of her university education.2 Each woman suffered the private failure of a love affair complicated by the broader, historical issue of racial identity that connected their lives. Prewar Nazi Germany taught Arendt what Varnhagen learned during the period of German-Jewish assimilation in the nineteenth century—"one does not escape Jewishness."3 It is no wonder that, in analogous moments of personal and civic upheaval, Rahel Varnhagen and Hannah Arendt "corresponded," the one by writing letters about her life, the other by giving that life to a world. Like Arendt, Varnhagen was unclassifiably exotic, an unattached, Jewish female seemingly without a history, aligned with no one and nothing. If"Jewishness" meant letting life "rain upon" her, Rahel Varnhagen let it strike her "like a storm without an umbrella." And like Arendt, she refused to hide the traits and talents of her personality under cover of morality and convention. Her letters are not self-congratulatory, for she never wittingly chose notoriety. Indeed, she spent much of her life trying to escape the stigma ofJewishness that marked her destiny. Notwithstanding the milieu of nineteenth-century German romanticism that drew the biographer toward her subject, various events surrounding the text make more compelling narratives than Varnhagen 's life: how the manuscript survived World War II, Arendt's emigration to the United States, and, especially, the public and private influence of Martin Heidegger.4 At the age of 18 (1925), Arendt had discovered Varnhagen during her brief love-affair with the 35-year-old philosophy professor at the University of Marburg. Though Heidegger would later call Arendt the "passion of his life" and inspiration for his work—he was writing Being and Time during that period—his brush with Nazism precipitated their breach. Since the Heidegger-Arendt correspondence remains closed, much about their youthful relationship and life-long intellectual affair remains a mystery open only to speculation. From Arendt's biographer, Elisabeth Young-Bruehl, we know that Varnhagen's story became a consolation to her in her sorrow, a means ofgiving significance to the ambiguities of a private relationship as it was caught up in public history.5 Certainly Heidegger's retreat from political events for the sake of thinking was as strong an influence on Arendt's political development as was Varnhagen's retreat from her Jewish destiny. Nonetheless, it would be a mistake to expect... (shrink)

This important new book analyses these core issues and reviews the evidence from both introspection and experiment.

The apparent similarities concerning the removal of a natural obligation to obey the law by Bonaventure of Bagnoregio, and recent theorists Green, Raz, and Simmons, are found to be distinctions rather than similarities.

ABSTRACT The recent revival of interest in theory leads the writers to examine a particular moment when a curriculum and the institution in which it occurred was explained and justified. Max Horkheimer's inaugural address to the Institute for Social Research in 1931 is summarised. The points made by the new Director of the Institute are examined in relation not only to his proposal for an inter‐disciplinary curriculum, but also to the nature of the institution and to the general justification of (...) higher education. The article concludes with a number of comments on the relevance of these proposals to some modern higher education issues. (shrink)

In contemporary societies, the processes of transindividuation by which knowledges are transformed into cycles and rhythms of metastability have been dramatically short-circuited. In turn, this has provoked the spiritual misery and pseudo-fabulations so prevalent all around us, including our educational contexts. For Stiegler, this is nothing short of a noetic reticulation that deprives us from ways of thinking ourselves beyond or outside of our digital experience. But digitality has not only intensified the commodification of knowledges (savoirs), it has also rendered (...) even knowledge production automated, recursive and probabilistic, the uncritical implementation of ChatGPT being a prime example. What this means is that knowledge and knowledge production have been subsumed under the rubric of recursive optimization for predictive performance. To understand this transformation, I discuss the implications of the widespread use of Bayesian statistics in machine learning. My argument is that we need to develop new speculative tools aimed at what is known as priors in Bayesian models, which is to say the probability of an occurrence before the collection of new data. What this means for education is that we need to address not only the effects of automation, but also the very conditions that give rise to these. (shrink)

The account of natural kinds as stable property clusters is premised on the possibility of separating the epistemic value of natural kinds from their underlying metaphysics. On that account, the co-instantiation of any sub-cluster of the properties associated with a given natural kind raises the probability of the co-instantiation of the rest, and this clustering of property instantiation is invariant under all relevant counterfactual perturbations. We argue that it is not possible to evaluate the stability of a cluster of properties (...) without taking stock of the metaphysical picture used to account for that stability. Thus, even on the stable property cluster account, the epistemic value of natural kinds remains partly grounded in their metaphysical status. (shrink)

How does conscious experience arise out of the functioning of the human brain? How is it related to the behaviour that it accompanies? How does the perceived world relate to the real world? Between them, these three questions constitute what is commonly known as the Hard Problem of consciousness. Despite vast knowledge of the relationship between brain and behaviour, and rapid advances in our knowledge of how brain activity correlates with conscious experience, the answers to all three questions remain controversial, (...) even mysterious. This important book analyses these core issues and reviews the evidence from both introspection and experiment. To many its conclusions will be surprising and even unsettling: * The entire perceived world is constructed by the brain. The relationship between the world we perceive and the underlying physical reality is not as close as we might think * Much of our behaviour is accomplished with little or no participation from conscious experience. * Our conscious experience of our behaviour lags the behaviour itself by around a fifth of a second - we become aware of what we do only after we have done it. * The lag in conscious experience applies also to the decision to act - we only become aware of our decisions after they have been formed. * The self is as much a creation of the brain as is the rest of the perceived world. Written by a leading scientist, this accessible and compelling analysis of how conscious experience relates to brain and behaviour will have major implications for our understanding of human nature. (shrink)

The phenomenon of digital differentiation, or stark variations in ability to access Internet hardware and/or infrastructure, has been a feature of provision since its early days. This article explores the impact of digital differentiation on two groups of young people, in England and Germany. It is based on fieldwork that took place during the academic year 2018-2019, just before the global pandemic threw the issue of equality of Internet access into sharp relief. The article begins by describing the empirical design (...) of the My Life Online project, including background, sampling, instruments, ethical aspects and the initial data analysis approach taken to ensure reliability and validity. It then develops a further analysis drawing on Halford and Savage’s hybrid Bourdieu/Actor Network Theory model (2010) to map out the socio-technical network surrounding the young people in our study. In this way we identify areas of change and conflict that compound existing social deprivation. We conclude by making a case for a better education policy awareness of the key issues, and more equitable distribution of national infrastructure moving forwards. (shrink)