YouTube has been implicated in the transformation of users into extremists and conspiracy theorists. The alleged mechanism for this radicalizing process is YouTube’s recommender system, which is optimized to amplify and promote clips that users are likely to watch through to the end. YouTube optimizes for watch-through for economic reasons: people who watch a video through to the end are likely to then watch the next recommended video as well, which means that more advertisements can be served to them. This (...) is a seemingly innocuous design choice, but it has a troubling side-effect. Critics of YouTube have alleged that the recommender system tends to recommend extremist content and conspiracy theories, as such videos are especially likely to capture and keep users’ attention. To date, the problem of radicalization via the YouTube recommender system has been a matter of speculation. The current study represents the first systematic, pre-registered attempt to establish whether and to what extent the recommender system tends to promote such content. We begin by contextualizing our study in the framework of technological seduction. Next, we explain our methodology. After that, we present our results, which are consistent with the radicalization hypothesis. Finally, we discuss our findings, as well as directions for future research and recommendations for users, industry, and policy-makers. (shrink)

YouTube has been implicated in the transformation of users into extremists and conspiracy theorists. The alleged mechanism for this radicalizing process is YouTube’s recommender system, which is optimized to amplify and promote clips that users are likely to watch through to the end. YouTube optimizes for watch-through for economic reasons: people who watch a video through to the end are likely to then watch the next recommended video as well, which means that more advertisements can be served to them. This (...) is a seemingly innocuous design choice, but it has a troubling side-effect. Critics of YouTube have alleged that the recommender system tends to recommend extremist content and conspiracy theories, as such videos are especially likely to capture and keep users’ attention. To date, the problem of radicalization via the YouTube recommender system has been a matter of speculation. The current study represents the first systematic, pre-registered attempt to establish whether and to what extent the recommender system tends to promote such content. We begin by contextualizing our study in the framework of technological seduction. Next, we explain our methodology. After that, we present our results, which are consistent with the radicalization hypothesis. Finally, we discuss our findings, as well as directions for future research and recommendations for users, industry, and policy-makers. (shrink)

Stereological techniques allow biologists to create quantitative, three-dimensional descriptions of biological structures from two- dimensional images of tissue viewed under the microscope. For example, they can accurately estimate the size of a particular organelle, the total length of a mass of capillaries, or the number of neurons or synapses in a particular region of the brain. This book provides a practical guide to designing and critically evaluating stereological studies of the nervous system and other tissues. It explains the basic concepts (...) behind design-based stereology and how to get started. Also included are detailed descriptions of how to prepare tissue appropriately, perform pilot studies and decide on the appropriate sampling strategy, and account for phenomena such as tissue shrinkage. Numerous examples of applications of stereological methods that are applicable to studies of the central system and a wide variety of other tissues are explained. The book is therefore essential reading for neurobiologists and cell biologists interested in generating accurate representations of cell and tissue architecture. (shrink)

In this essay, I give an analysis of the account of non-being in the Weltalter, focusing on the ways in which this account reflects Schelling’s new ontology of revelation. I begin by discussing the connection between non-being and the fundamental distinction between the principles in God. I then turn to the relationship of non-being to being in the Weltalter and show how a new meaning of being allows Schelling to distinguish non-being from nothing. The new meaning of being also makes (...) possible a distinction between essential non-being and de facto non-being; this distinction allows for the temporal sequence of revelation and the possibility of evil. I conclude by showing the implications of Schelling’s theory of non-being for his understanding of creation. (shrink)

In this paper I attempt to answer the question: What is interdisciplinary communication? I attempt to answer this question, rather than what some might consider the ontologically prior question—what is interdisciplinarity (ID)?—for two reasons: (1) there is no generally agreed-upon definition of ID; and (2) one’s views regarding interdisciplinary communication have a normative relationship with one’s other views of ID, including one’s views of its very essence. I support these claims with reference to the growing literature on ID, which has (...) a marked tendency to favor the idea that interdisciplinary communication entails some kind of ‘integration’. The literature on ID does not yet include very many philosophers, but we have something valuable to offer in addressing the question of interdisciplinary communication. Playing somewhat fast-and-loose with traditional categories of the subdisciplines of philosophy, I group some philosophers—mostly from the philosophy of science, social–political philosophy, and moral theory—and some non-philosophers together to provide three different, but related, answers to the question of interdisciplinary communication. The groups are as follows: (1) Habermas–Klein, (2) Kuhn–MacIntyre, and (3) Bataille–Lyotard. These groups can also be thought of in terms of the types of answers they give to the question of interdisciplinary communication, especially in terms of the following key words (where the numbers correspond to the groups from the previous sentence): (1) consensus, (2) incommensurability, and (3) invention. (shrink)

At first glance, Schopenhauer’s account of human freedom looks strikingly similar to Schelling’s account of formal freedom in the Freiheitsschrift. Despite the clear similarities, I argue that there is a decisive difference between the two accounts—a difference that has to do with the ultimate grounding of freedom. For Schelling, the intelligible deed is a radical self-grounding of the eternal essence of the human being. For Schopenhauer, the eternal essence of the human being is groundless. Moreover, I argue that this difference (...) has decisive consequences for two sets of issues. On the one hand, Schelling’s concept of self-grounding allows him to preserve the universal application of the principle of ground. On the other hand, self-grounding is the only way that human beings can be responsible for who they are. Schelling thus anticipates a key insight of Galen Strawson: ultimate moral responsibility is only possible for a causa sui. (shrink)

Medicalization was the theme of the 29th European Conference on Philosophy of Medicine and Health Care that included a panel session on the DSM and mental health. Philosophical critiques of the medical model in psychiatry suffer from endemic assumptions that fail to acknowledge the real world challenges of psychiatric nosology. The descriptive model of classification of the DSM 3-5 serves a valid purpose in the absence of known etiologies for the majority of psychiatric conditions. However, a consequence of the “atheoretical” (...) approach of the DSM is rampant epistemological confusion, a shortcoming that can be ameliorated by importing perspectives from the work of Jaspers and McHugh. Finally, contemporary psychiatry’s over-reliance on neuroscience and pharmacotherapy has led to a reductionist agenda that is antagonistic to the inherently pluralistic nature of psychiatry. As a result, the field has suffered a loss of knowledge that may be difficult to recover. (shrink)

In studies of early Christian thought, 'philosophy' is often a synonym for 'Platonism', or at most for 'Platonism and Stoicism'. Nevertheless, it was Aristotle who, from the sixth century AD to the Italian Renaissance, was the dominant Greek voice in Christian, Muslim and Jewish philosophy. Aristotle and Early Christian Thoughtis the first book in English to give a synoptic account of the slow appropriation of Aristotelian thought in the Christian world from the second to the sixth century. Concentrating on the (...) great theological topics - creation, the soul, the Trinity, and Christology - it makes full use of modern scholarship on the Peripatetic tradition after Aristotle, explaining the significance of Neoplatonism as a mediator of Aristotelian logic. While stressing the fidelity of Christian thinkers to biblical presuppositions which were not shared by the Greek schools, it also describes their attempts to overcome the pagan objections to biblical teachings by a consistent use of Aristotelian principles, and it follows their application of these principles to matters which lay outside the purview of Aristotle himself. This volume offers a valuable study not only for students of Christian theology in its formative years, but also for anyone seeking an introduction to the thought of Aristotle and its developments in Late Antiquity. by a consistent use of Aristotelian principles, and it follows their application of these principles to matters which lay outside the purview of Aristotle himself. This volume offers a valuable study not only for students of Christian theology in its formative years, but also for anyone seeking an introduction to the thought of Aristotle and its developments in Late Antiquity. (shrink)

Seeing and hearing God in the Old Testament -- Seeing and hearing God in the New Testament -- Word and image in classical Greek philosophy -- Philosophers and sophists of the early Roman era -- Image, text and incarnation in the second century -- Image, text and incarnation in the third century -- Neoplatonism and the arts -- Image, text and incarnation in the fourth century -- Myth and text in proclus -- Christianity of Christian Platonism.

Jerry Fodor is one of the most important philosophers of mind in recent decades. He has done much to set the agenda in this field and has had a significant influence on the development of cognitive science. Fodor's project is that of constructing a physicalist vindication of folk psychology and so paving the way for the development of a scientifically respectable intentional psychology. The centrepiece of his engagement in this project is a theory of the cognitive mind, namely, the computational (...) theory of mind, which postulates the existence of a language of thought. Fodor: Language, Mind and Philosophy is a comprehensive study of Fodor's writings. Individual chapters are devoted to each of the major issues raised by his work and contain extensive discussion of his relationships to key developments in cognitive science and to the views of such philosophical luminaries as Dennett, Davidson and Searle. (shrink)

We investigate differences between a simple Dominance Principle applied to sums of fair prices for variables and dominance applied to sums of forecasts for variables scored by proper scoring rules. In particular, we consider differences when fair prices and forecasts correspond to finitely additive expectations and dominance is applied with infinitely many prices and/or forecasts.

This paper critically explores key aspects of the gulf between traditional Christian bioethics and the secular moral reflections that dominate contemporary bioethics. For example, in contrast to traditional Christian morality, the established secular bioethics judges extramarital sex acts among consenting persons, whether of the same or different sexes, as at least morally permissible, affirms sexual freedom for children to develop their own sexual identity, and holds the easy availability of abortion and infanticide as central to the liberty interests of women. (...) Secular bioethics seeks to separate children from the authority of their parents, placing children themselves as in authority to make their own judgments about appropriate lifestyle choices, including sexual behaviors. As I argue, however, absent God, there exists no standpoint outside of our own cultural sociohistorically conditioned understanding from which to communicate any deeper perspective of reality or the bioethics that such a perspective would secure. Consequently, rather than discerning moral truth, secular bioethics merely affirms its own particular cultural sociohistorically conditioned ideological perspective. It is a social and political worldview bereft of definitive moral foundation, independent moral authority, or unambiguous content. (shrink)

This study explores the ways in which adolescents, even so-called “mature minors”, lack adequate development of the intellectual, affective, and emotional capacities necessary morally to consent to medical research on their own behalf. The psychological and neurophysiological data regarding brain maturation supports the conclusion that adolescents are qualitatively different types of agents than mature adults. They lack full adult maturity and personal agency. As a result, in addition to the usual requirements for IRB approval, one or both parents, or a (...) legal guardian, should provide informed consent for minor children to participate in medical research. (shrink)

It has long been known that the practice of testing all hypotheses at the same level , regardless of the distribution of the data, is not consistent with Bayesian expected utility maximization. According to de Finetti’s “Dutch Book” argument, procedures that are not consistent with expected utility maximization are incoherent and they lead to gambles that are sure to lose no matter what happens. In this paper, we use a method to measure the rate at which incoherent procedures are sure (...) to lose, so that we can distinguish slightly incoherent procedures from grossly incoherent ones. We present an analysis of testing a simple hypothesis against a simple alternative as a case‐study of how the method can work. (shrink)

Debates over health care have focused for so long on economics that the proper goals for medicine seem to be taken for granted; yet problems in health care stem as much from a lack of agreement about the goals and priorities of medicine as from the way systems function. This book asks basic questions about the purposes and ends of medicine and shows that the answers have practical implications for future health care delivery, medical research, and the education of medical (...) students. The Hastings Center coordinated teams of physicians, nurses, public health experts, philosophers, theologians, politicians, health care administrators, social workers, and lawyers in fourteen countries to explore these issues. In this volume, they articulate four basic goals of medicine — prevention of disease, relief of suffering, care of the ill, and avoidance of premature death — and examine them in light of the cultural, political, and economic pressures under which medicine functions. In reporting these findings, the contributors touch on a wide range of diverse issues such as genetic technology, Chinese medicine, care of the elderly, and prevention and public health. The Goals of Medicine clearly demonstrates the importance of clarifying the purposes of medicine before attempting to change the economic and organizational systems. It warns that without such examination, any reform efforts may be fruitless. (shrink)

THIS IS A PRE-PUBLICATION VERSION OF THE PAPER. The New Testament speaks of our having faith rather than sight. This distinction is not made to distinguish faith from knowledge. Rather, it is to distinguish one kind of knowledge from another. We may know by trust in reliable authority; this knowledge is necessarily secondhand, but it is knowledge all the same. This, I argue, is the New Testament idea of faith. Another way of knowing is firsthand. Sight in the New Testament, (...) I argue, is a metonym for firsthand knowledge. In this article I consider the meaning of faith and sight in the relevant New Testament passages, with an extended exegesis of 2 Cor. 5:7 and Heb. 11:1. (shrink)

In recent decades cognitive science has revolutionised our understanding of the workings of the human mind. Philosophy has made a major contribution to cognitive science and has itself been hugely influenced by its development. This dynamic book explores the philosophical significance of cognitive science and examines the central debates that have enlivened its history. In a wide-ranging and comprehensive account of the topic, philosopher M.J. Cain discusses the historical origins of cognitive science and its philosophical underpinnings; the nature and role (...) of representations in cognition; the architecture of the mind and the modularity thesis; the nature of concepts; knowledge of language and its acquisition; perception; and the relationship between the brain and cognition. Cain draws upon an extensive knowledge of empirical developments and their philosophical interpretation. He argues that although the field has generated some challenging new views in recent years, many of the core ideas that initiated its birth are still to be taken seriously. Clearly written and incisively argued, The Philosophy of Cognitive Science will appeal to any student or researcher interested in the workings of the mind. (shrink)

This essay addresses two growing edges of the just war tradition. First, theorists have been accused of focusing narrowly on justifying war and governing its conduct, neglecting wider considerations that encompass justice during the years prior to and after war. Second, calling a war "just" allegedly makes it seem "good" so that it is easier to fight a war and to bend or set aside the rules. Based on "imperfect justice," we argue for a "justified" war theory, taking all criteria (...) and categories seriously, including jus ante bellum and jus post bellum. (shrink)

Several axiom systems for preference among acts lead to a unique probability and a state-independent utility such that acts are ranked according to their expected utilities. These axioms have been used as a foundation for Bayesian decision theory and subjective probability calculus. In this article we note that the uniqueness of the probability is relative to the choice of whatcounts as a constant outcome. Although it is sometimes clear what should be considered constant, in many cases there are several possible (...) choices. Each choice can lead to a different "unique" probability and utility. By focusing attention on statedependent utilities, we determine conditions under which a truly unique probability and utility can be determined from an agent's expressed preferences among acts. Suppose that an agent's preference can be represented in terms of a probability P and a utility U.That is, the agent prefers one act to another iff the expected utility of that act is higher than that of the other. There are many other equivalent representations in terms of probabilities Q, which are mutually absolutely continuous with P, and state-dependent utilities V, which differ from U by possibly different positive affine transformations in each state of nature. We describe an example in which there are two different but equivalent state-independent utility representations for the same preference structure. They differ in which acts count as constants. The acts involve receiving different amounts of one or the other of two currencies, and the states are different exchange rates between the currencies. It is easy to see how it would not be possible for constant amounts of both currencies to have simultaneously constant values across the differentstates. Savage (1954, sec. 5.5) discovered a situation in which two seemingly equivalent preference structures are represented by different pairs of probability and utility. He attributed the phenomenon to the construction of a "small world." We show that the small world problem is just another example of two different, but equivalent, representations treating different actsas constants. Finally, we prove a theorem (similar to one of Karni 1985) that shows how to elicit a unique state-dependent utility and does not assume that there are prizes with constant value. To do this, we define a new hypothetical kind of act in which both the prize to be awarded and the state of nature are determined by an auxiliary experiment. (shrink)

Creation of for-profit markets in organs for transplantation ignites in many deep moral repugnance. Proposals to broker organs have been denounced by the US Congress and professional groups alike. Financial incentives are believed to undermine consent, coercing the poor into selling their organs, violating human dignity, and improperly commodifying the human body; such concerns are held to trump the possibility of increasing life-sustaining transplants. While such views summarize the apparent global consensus which marks worldwide prohibition of the sale of human (...) organs, I argue that closer examination reveals significant grounds for concluding that markets would be more successful in preventing exploitation, preserving human dignity, and protecting against improper commodification than governmental bureaucratic procedures for procuring and allocating organs. (shrink)

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