Mental disorders such as depression and anxiety are increasingly common. Yet there are too few specialists to offer help to everyone, and negative attitudes to psychological problems and their treatment discourage people from seeking it. As a result, many people never receive help for these problems. The Oxford Guide to Low Intensity CBT Interventions marks a turning point in the delivery of psychological treatments for people with depression and anxiety. Until recently, the only form of psychological intervention available for patients (...) with depression and anxiety was traditional one-to-one 60 minute session therapy - usually with private practitioners for those patients who could afford it. Now Low Intensity CBT Interventions are starting to revolutionize mental health care by providing cost effective psychological therapies which can reach the vast numbers of people with depression and anxiety who did not previously have access to effective psychological treatment. The Oxford Guide to Low Intensity CBT Interventions is the first book to provide a comprehensive guide to Low Intensity CBT interventions. It brings together researchers and clinicians from around the world who have led the way in developing evidence-based low intensity CBT treatments. It charts the plethora of new ways that evidence-based low intensity CBT can be delivered: for instance, guided self-help, groups, advice clinics, brief GP interventions, internet-based or book-based treatment and prevention programs, with supported provided by phone, email, internet, sms or face-to-face. These new treatments require new forms of service delivery, new ways of communicating, new forms of training and supervision, and the development of new workforces. They involve changing systems and routine practice, and adapting interventions to particular community contexts. The Oxford Guide to Low Intensity CBT Interventions is a state-of-the-art handbook, providing low intensity practitioners, supervisors, managers commissioners of services and politicians with a practical, easy-to-read guide - indispensible reading for those who wish to understand and anticipate future directions in health service provision and to broaden access to cost-effective evidence-based psychological therapies. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:BOOK REVIEWS 719 An Apology for Apologetics: A Study in the Logic of lnterreligious Dialogue. By PAUL J. GRIFFITHS. New York: Orbis, 1991. ISBN: 0 88344 761 4. pp. 113. Jesus Christ at the Encounter of World Religions. By J. DUPUIS. New York: Orbis, 1991 (ET: Robert R. Barr, from French, 1989). ISBN: 0 88344 723 1. pp. 301. Griffiths presents a rigorous argument for the possibility (...) of con· tradictory claims between different religious communities. His inspira· tion, as he acknowledges, is William Christian Snr. His basic argu· ment is: " If representative intellectuals belonging to some specific religious community come to judge at a particular time that some or all of their own doctrine-expressing sentences are incompatible with some alien religious claim(s), then they should feel obliged to engage in both positive and negative apologetics vis-a-vis these alien religious claim(s) and their promulgators" (3). He takes negative apologetics to be a critique of arguments made against one's own religious claims, showing that such arguments fail or are inconsistent or incoherent. Positive apologetics shows how a particular religious community's doctrines are cognitively superior, in some respect(s), to another religious community 's doctrines. It is essential for this enterprise that only methods of argumentation and criteria of knowledge acceptable to the adversary are employed. This requires the acceptance of natural theology. Griffiths is well aware of the lion's den he is entering, as his proposals run counter to much scholarship in the area of interreligious dialogue, so he spends three chapters apologetically tackling the lions. The objectors (who mainly remain in notes) include Derrida, Barthes, Winch, Lindbeck, Hick, Huxley, Nasr, Plantinga and others, although Mac· Intyre is curiously missing. This technique has the advantage of isolating and presenting arguments, without falling into problems of cor· rect exegesis of opponents. And this is also its weakness, as objectors will sometimes feel caricatured or misunderstood-as is surely the case with Plantinga and in one instance, Hick. First, he tackles objections that sentences from one tradition are either incomprehensible or incommensurable with those of another, convincingly showing that the strong versions of both claims are self· defeating and unsustainable. Weaker versions still allow for his proj· ect-or so he thinks. This is where Maclntyre's work should have been considered. Then he tackles various theories of religious language (following Lindbeck's typology). He argues against non-cognitive accounts that reduce beliefs to the credibility of causes for holding beliefs, a position incapable of asserting its truth over other views because of its 720 BOOK REVIEWS own presuppositions. He follows Lindbeck in criticizing experiental expressivism, and then turns upon Lindbeck's own form of rule theory (which is ambivalent regarding cognitive claims), arguing convincingly that to suggest that only sentences uttered confessionally and with performative function can possess ontological truth is confused (42). In a brief review it is not possible to rehearse Griffiths's careful argumentation. Griffiths then sets about tackling two types of universalists: Hick and Huxley. Of Hick, he argues that some criteria are required to discern true from false religions (e.g. Jim Jones) and in so doing such a position needs to support and develop such criteria, thereby effectively introducing apologetics. He neglects to deal with Hick's pragmatic criteria of beneficial ' fruits ' evident in adherents, but the logic of his argument can be applied to Hick's proposals. Using Katz and Zaehner, he argues against the esoteric universalism of the philosophia perennis. (The arguments of Robert Forman's recent book, The Problems of Pure Consciousness, are strangely neglected, despite Griffiths's being a contributor to that collection.) Finally, he tackles objections against positive apologetics-first, on the grounds that it has a negative effect on interreligious relations. Logically, this need not be the case, although Griffiths is well aware that the political context of apologetics can obscure its proper goal: deeper critical understanding, learning and problem solving. Then, in sustained dialogue with Plantinga, he argues against the objection that success is impossible. It is impossible only if " knockdown drag-out" (64) argumentative victory is expected. Griffiths suggests the cumulative -case argument and gives instances of such successful apologetics (medieval... (shrink)

Paul E. Griffiths argues that most research on the emotions has been as misguided as Aristotelian efforts to study "superlunary objects" - objects...

Kenneth C. Schaffner's paper is an important contribution to the literature on behavioral genetics and on genetics in general. Schaffner has a long record of injecting real molecular biology into philosophical discussions of genetics. His treatments of the reduction of Mendelian to molecular genetics first drew philosophical attention to the problems of detail that have fuelled both anti-reductionism and more sophisticated models of theory reduction. An injection of molecular detail into discussions of genetics is particularly necessary at the present time, (...) when so many philosophers seem happy to discuss the philosophical and ethical implications of molecular biology using gene concepts derived from evolutionary biology ). Schaffner has long advocated the view that the philosophy of biology should be more than the philosophy of evolution. This paper shows how radically a picture of gene action derived from molecular biology undercuts the popular picture associated with a more evolutionary view of genes as units of heredity or as ‘difference-makers’ mediated by the ‘black box’ of development. (shrink)

Ever since Darwin people have worried about the sceptical implications of evolution. If our minds are products of evolution like those of other animals, why suppose that the beliefs they produce are true, rather than merely useful? In this chapter we apply this argument to beliefs in three different domains: morality, religion, and science. We identify replies to evolutionary scepticism that work in some domains but not in others. The simplest reply to evolutionary scepticism is that the truth of beliefs (...) in a certain domain is, in fact, connected to evolutionary success, so that evolution can be expected to design systems that produce true beliefs in that domain. We call a connection between truth and evolutionary success a ‘Milvian bridge’, after the tradition which ascribes the triumph of Christianity at the battle of the Milvian bridge to the truth of Christianity. We argue that a Milvian bridge can be constructed for commonsense beliefs, and extended to scientific beliefs, but not to moral and religious beliefs. An alternative reply to evolutionary scepticism, which has been used defend moral beliefs, is to argue that their truth does not depend on their tracking some external state of affairs. We ask if this reply could be used to defend religious beliefs. (shrink)

Is the history of life a series of accidents or a drama scripted by selfish genes? Is there an “essential” human nature, determined at birth or in a distant evolutionary past? What should we conserve—species, ecosystems, or something else? -/- Informed answers to questions like these, critical to our understanding of ourselves and the world around us, require both a knowledge of biology and a philosophical framework within which to make sense of its findings. In this accessible introduction to philosophy (...) of biology, Kim Sterelny and Paul E. Griffiths present both the science and the philosophical context necessary for a critical understanding of the most exciting debates shaping biology today. The authors, both of whom have published extensively in this field, describe the range of competing views—including their own—on these fascinating topics. -/- With its clear explanations of both biological and philosophical concepts, Sex and Death will appeal not only to undergraduates, but also to the many general readers eager to think critically about the science of life. (shrink)

The etiological approach to ‘proper functions’ in biology can be strengthened by relating it to Robert Cummins' general treatment of function ascription. The proper functions of a biological trait are the functions it is assigned in a Cummins-style functional explanation of the fitness of ancestors. These functions figure in selective explanations of the trait. It is also argued that some recent etiological theories include inaccurate accounts of selective explanation in biology. Finally, a generalization of the notion of selective explanation allows (...) an analysis of the proper functions of human artifacts. (shrink)

John Maynard Smith has defended against philosophical criticism the view that developmental biology is the study of the expression of information encoded in the genes by natural selection. However, like other naturalistic concepts of information, this ‘teleosemantic’ information applies to many non-genetic factors in development. Maynard Smith also fails to show that developmental biology is concerned with teleosemantic information. Some other ways to support Maynard Smith’s conclusion are considered. It is argued that on any definition of information the view that (...) development is the expression of genetic information is misleading. Some reasons for the popularity of that view are suggested. (shrink)

We outline three very different concepts of the gene—instrumental, nominal, and postgenomic. The instrumental gene has a critical role in the construction and interpretation of experiments in which the relationship between genotype and phenotype is explored via hybridization between organisms or directly between nucleic acid molecules. It also plays an important theoretical role in the foundations of disciplines such as quantitative genetics and population genetics. The nominal gene is a critical practical tool, allowing stable communication between bioscientists in a wide (...) range of fields grounded in well-defined sequences of nucleotides, but this concept does not embody major theoretical insights into genome structure or function. The post-genomic gene embodies the continuing project of understanding how genome structure supports genome function, but with a deflationary picture of the gene as a structural unit. This final concept of the gene poses a significant challenge to conventional assumptions about the relationship between genome structure and function, and between genotype and phenotype. (shrink)

I defend the view that many biological categories are defined by homology against a series of arguments designed to show that all biological categories are defined, at least in part, by selected function. I show that categories of homology are `abnormality inclusive'—something often alleged to be unique to selected function categories. I show that classifications by selected function are logically dependent on classifications by homology, but not vice-versa. Finally, I reject the view that biologists must use considerations of selected function (...) to abstract away from variation and pathology to form a canonical description of a class of biological systems. (shrink)

Ever since Darwin people have worried about the sceptical implications of evolution. If our minds are products of evolution like those of other animals, why suppose that the beliefs they produce are true, rather than merely useful? We consider this problem for beliefs in three different domains: religion, morality, and commonsense and scientific claims about matters of empirical fact. We identify replies to evolutionary scepticism that work in some domains but not in others. One reply is that evolution can be (...) expected to design systems that produce true beliefs in some domain. This reply works for commonsense beliefs and can be extended to scientific beliefs. But it does not work for moral or religious beliefs. An alternative reply which has been used defend moral beliefs is that their truth does not consist in their tracking some external state of affairs. Whether or not it is successful in the case of moral beliefs, this reply is less plausible for religious beliefs. So religious beliefs emerge as particularly vulnerable to evolutionary debunking. (shrink)

Ontological monists hold that there is only one way of being, while ontological pluralists hold that there are many; for example, concrete objects like tables and chairs exist in a different way from abstract objects like numbers and sets. Correspondingly, the monist will want the familiar existential quantifier as a primitive logical constant, whereas the pluralist will want distinct ones, such as for abstract and concrete existence. In this paper, we consider how the debate between the monist and pluralist relates (...) to the standard test for logicality. We deploy this test and show that it favors the monist. (shrink)

Experimental philosophy of science gathers empirical data on how key scientific concepts are understood by particular scientific communities. In this paper we briefly describe two recent studies in experimental philosophy of biology, one investigating the concept of the gene, the other the concept of innateness. The use of experimental methods reveals facts about these concepts that would not be accessible using the traditional method of intuitions about possible cases. It also contributes to the study of conceptual change in science, which (...) we understand as the result of a form of conceptual ecology, in which concepts become adapted to specific epistemic niches. (shrink)

Biological sexes (male, female, hermaphrodite) are defined by different gametic strategies for reproduction. Sexes are regions of phenotypic space which implement those gametic reproductive strategies. Individual organisms pass in and out of these regions – sexes - one or more times during their lives. Importantly, sexes are life-history stages rather than applying to organisms over their entire lifespan. This fact has been obscured by concentrating on humans, and ignoring species which regularly change sex, as well as those with non-genetic or (...) facultatively genetic sex determination systems. But the general point applies equally to humans. Assigning sexes to pre-reproductive life history stages involves ‘prospective narration’ – classifying the present in terms of its anticipated future. Assigning sexes to adult stages of non-reproductive castes or non-reproductive individuals is a complex matter whose biological meaning differs from case to case. The chromosomal and phenotypic ‘definitions’ of biological sex that are contested in philosophical discussions of sex are actually operational definitions which track gametic sex more or less effectively in some species or group of species. Neither ‘definition’ can be stated for species in general except by defining them in terms of gametic sex. The gametic definition of sex also features in widely accepted models which explain why two biological sexes – either in separate individuals or combined in hermaphroditic individuals - are almost universal in multicellular species. Finally, the fact that a species has only two biological sexes does not imply that every member of the species is either male, female or hermaphroditic, or that the sex of every individual organism is clear and determinate. The idea of biological sex is critical for understanding the diversity of life, but ill-suited to the job of determining the social or legal status of human beings as men or women. (shrink)

Every person in the course of his or her life has some contact with the medical profession. And in recent years that profession has been revolutionised in the fields of research, of technology and of practice. Hardly has one advance been declared than it is superseded by another. At the same time, while community attitudes themselves change, group practices have taken some weight from doctors but perhaps have diminished the doctor/ patient relationship of previous years. Another change in the oversight (...) of the medical profession has been the growth of what is called medical ethics. What, for example, is the amount of information a doctor should give a patient prior to performing an experimental procedure? Amongst all these changes there are still fundamental issues where doctors have to use their personal judgment as to what to do or what to say. For Max Griffiths this is where ethical considerations become matters of medical morality. He outlines a broad range of situations which frequently confront both doctor and patient, requiring sympathetic understanding on each side. Some of these arise out of the radical changes which have occurred in community attitudes and practices. Abortion and euthanasia are two important examples. Others range from growing pains and teenage trauma to ageing and dealing with dying and with loss. From his extensive associations with patients in a wide variety of situations the author tackles those issues which demonstrate what makes a good doctor. The result is a book that is for doctors and patients alike. Max Griffiths' involvement in medical matters range from responsibility for outback hospitals in places like Birdsville, Oodnadatta, Halls Creek and Fitzroy Crossing to long term membership of the board of the Austin Hospital in Melbourne. In this latter capacity he chaired committees responsible for the oversight of medical research, especially the protection of patients' rights. He was also involved in similar committees at the Royal Children's Hospital in Melbourne and the Royal Darwin Hospital. As a long term minister of religion his visits to his parishioners both at home and in hospitals gave him a deep insight into their anxieties. He was also a foundation member of Ronald McDonald House and chairman of several institutions engaged in the care of children with disabilities. [Subject: Sociology, Health Care, Medical Ethics]. (shrink)

Social learning has been shown to be an evolutionarily adaptive strategy, but it can be implemented via many different cognitive mechanisms. The adaptive advantage of social learning depends crucially on the ability of each learner to obtain relevant and accurate information from informants. The source of informants’ knowledge is a particularly important cue for evaluating advice from multiple informants; if the informants share the source of their information or have obtained their information from each other, then their testimony is statistically (...) dependent and may be less reliable than testimony from informants who do not share information. In this study, we use a Bayesian model to determine how rational learners should incorporate the effects of shared information when learning from other people, conducting three experiments that examine whether human learners behave similarly. We find that people are sensitive to a number of different patterns of dependency, supporting the use of a sophisticated strategy for social learning that goes beyond copying the majority, and broadening the situations in which social learning is likely to be an adaptive strategy. (shrink)

The interventionist account of causation offers a criterion to distinguish causes from non-causes. It also aims at defining various desirable properties of causal relationships, such as specificity, proportionality and stability. Here we apply an information-theoretic approach to these properties. We show that the interventionist criterion of causation is formally equivalent to non-zero specificity, and that there are natural, information-theoretic ways to explicate the distinction between potential and actual causal influence. We explicate the idea that the description of causes should be (...) proportional to that of their effects. Then we draw a distinction between two ideas in the existing literature, the range of invariance of a causal relationship and its stability. The range of invariance is related to specificity and range of causal values. Stability concerns the effect of additional variables on the relationship between some focal pair of cause and effect variables. We show how to distinguish and measure the direct influence of background variables on the effect variable, and their influence on the relationship between the focal cause and the effect variable. Finally, we discuss the limitations of the information-theoretic approach, and offer prospects for complementary approaches. (shrink)

In the years leading up to the Second World War the ethologists Konrad Lorenz and Nikolaas Tinbergen, created the tradition of rigorous, Darwinian research on animal behavior that developed into modern behavioral ecology. At first glance, research on specifically human behavior seems to exhibit greater discontinuity that research on animal behavior in general. The 'human ethology' of the 1960s appears to have been replaced in the early 1970s by a new approach called ‘sociobiology’. Sociobiology in its turn appears to have (...) been replaced by an approach calling itself Evolutionary Psychology. Closer examination, however, reveals a great deal of continuity between these schools. At present, whilst Evolutionary Psychology is the most visible form of evolutionary psychology, empirical and theoretical research on the evolution of mind and behavior is marked by a diversity of ideas and approaches and it is far from clear which direction(s) the field will take in future. (shrink)

The 'developmental systems' perspective in biology is intended to replace the idea of a genetic program. This new perspective is strongly convergent with recent work in psychology on situated/embodied cognition and on the role of external 'scaffolding' in cognitive development. Cognitive processes, including those which can be explained in evolutionary terms, are not 'inherited' or produced in accordance with an inherited program. Instead, they are constructed in each generation through the interaction of a range of developmental resources. The attractors which (...) emerge during development and explain robust and/or widespread outcomes are themselves constructed during the process. At no stage is there an explanatory stopping point where some resources control or program the rest of the developmental cascade. 'Human nature' is a description of how things generally turn out, not an explanation of why they turn out that way. Finally, we suggest that what is distinctive about human development is its degree of reliance on external scaffolding. (shrink)

Language research has come to rely heavily on large‐scale, web‐based datasets. These datasets can present significant methodological challenges, requiring researchers to make a number of decisions about how they are collected, represented, and analyzed. These decisions often concern long‐standing challenges in corpus‐based language research, including determining what counts as a word, deciding which words should be analyzed, and matching sets of words across languages. We illustrate these challenges by revisiting “Word lengths are optimized for efficient communication” (Piantadosi, Tily, & Gibson, (...) 2011), which found that word lengths in 11 languages are more strongly correlated with their average predictability (or average information content) than their frequency. Using what we argue to be best practices for large‐scale corpus analyses, we find significantly attenuated support for this result and demonstrate that a stronger relationship obtains between word frequency and length for a majority of the languages in the sample. We consider the implications of the results for language research more broadly and provide several recommendations to researchers regarding best practices. (shrink)

Wittgenstein always thought that he had not been understood, and indeed that it was very unlikely that many people ever would understand him. Russell not only failed to understand Wittgenstein's later work; according to Wittgenstein himself, Russell profoundly failed to understand even the Tractatus . Professor Anscombe says even she did not understand him, and that to attempt to give an account of what he says is only to express one's own ordinariness or mediocrity or lack of complexity. Certainly, most (...) people acquainted with the Tractatus , when that work was Wittgenstein's only published book, gave it what now seems a quite crass positivistic interpretation. Wittgenstein's own preface to the Tractatus , despite its last sentence, does not help. He does tell us that the whole sense of the work is that what can be said can be said clearly, and what we cannot talk about we must consign to silence: but this does not make it clear that what we cannot talk about is all that is really important. Even when one has realised all this, however, one is aware mostly of one's failure to understand; and that if one did get any distance in understanding the last sixth of the Tractatus , the process would be extremely difficult, and the results quite astonishing. (shrink)

This paper argues that there are no people. If identity isn't what matters in survival, psychological connectedness isn't what matters either. Further, fissioning cases do not support the claim that connectedness is what matters. I consider Peter Unger's view that what matters is a continuous physical realization of a core psychology. I conclude that if identity isn't what matters in survival, nothing matters. This conclusion is deployed to argue that there are no people. Objections to Eliminativism are considered, especially that (...) morality cannot survive the loss of persons. (shrink)

Access to education for undocumented migrant children in South Africa remains a significant challenge. While the difficulties related to their inability to access education within the country have been highlighted elsewhere, there remains a lack of clarity on an approach to how this basic human right can be achieved. In this conceptual paper, we draw on the distinction between equality and equity, and describe the various ways in which education has been conceptualised in the South African Constitution – which in (...) part contributes to the existing confusion on education for various groups, including undocumented migrant children. In this paper, we critically reflects on the need to develop an integrated approach for creating a platform that allows all undocumented migrant children access to education in South Africa. We argue that an integrated approach – which entails ways through which access to education can be delivered through the lens of equity – will enhance the right to education for undocumented migrant children in South Africa. We conclude that the South African government must urgently consider this integrated approach to enable access to education for undocumented migrant children, so that they can achieve their full educational potential. (shrink)

Wittgenstein always thought that he had not been understood, and indeed that it was very unlikely that many people ever would understand him. Russell not only failed to understand Wittgenstein's later work; according to Wittgenstein himself, Russell profoundly failed to understand even the Tractatus. Professor Anscombe says even she did not understand him, and that to attempt to give an account of what he says is only to express one's own ordinariness or mediocrity or lack of complexity. Certainly, most people (...) acquainted with the Tractatus, when that work was Wittgenstein's only published book, gave it what now seems a quite crass positivistic interpretation. Wittgenstein's own preface to the Tractatus, despite its last sentence, does not help. He does tell us that the whole sense of the work is that what can be said can be said clearly, and what we cannot talk about we must consign to silence: but this does not make it clear that what we cannot talk about is all that is really important. Even when one has realised all this, however, one is aware mostly of one's failure to understand; and that if one did get any distance in understanding the last sixth of the Tractatus, the process would be extremely difficult, and the results quite astonishing. (shrink)

This essay begins by distinguishing an argument’s validity from its cogency, and emphasizing the importance for understanding particular philosophers of knowing how they saw both matters (I). It then gives an introduction to the views of Moksākaragupta, an Indian Buddhist philosopher, on both these matters (II-III), and an analysis of his rebuttals of arguments for God’s existence, and his arguments against the possibility of God’s existence (IV). It concludes by showing that these arguments, though taken to be valid byMoksākaragupta, were (...) not intended by him to be persuasive; it suggests, also, that this is a typical feature of such arguments. (shrink)

This brief but comprehensive introduction to French author Blaise Pascal provides an overview of his life and works and examines the major themes in his writings.

In this essay I will discuss and appraise two conflicting answers to the question of whether there was a crisis in Ptolemaic astronomy prior to the Copernican revolution. I will begin by giving a brief account of why anybody should be interested in this question. I will discuss the two conflicting answers of Kuhn (1962, 1970), who claims to present evidence which shows that Ptolemaic astronomy was anomaly-ridden at the time of Copernicus, and of Gingerich (1975), who claims that the (...) supposed anomalies, which have been passed down in the historical literature due to poor scholarship, are fictitious. Finally I will appraise Gingerich’s criticism of Kuhn, giving my own evaluation of Gingerich’s arguments. I conclude that Gingerich’s arguments against the existence of a technical crisis in Ptolemaic astronomy prior to Copernicus appear to be, either arguments against the efficacy of the Copernican system, or arguments based on definitions of complexity which are not directly attributable to Kuhn. (shrink)

How best to introduce philosophical ideas? Is the best and only way by studying the history of philosophy and its rational arguments and discussions? But can literature, usually hived off from philosophy, be used instead and can this be as effective as rational argument? This paper explores these questions. First it considers a text which introduces philosophy through the analysis of literature, in particular James Joyce's 'Araby', arguing that the traditional analytic approach employed by the text, by concentrating on epistemology, (...) obscures other philosophical insights offered by Joyce. It then turns to French philosophy and literature and suggests that Sartre, Beauvoir and Camus by 'blurring' the analytic distinction between philosophy and literature have much to offer to the grasping and understanding of philosophical ideas and principles. (shrink)

This paper will argue that there are no people. Let me summarize the argument. In part II of what follows, I argue that if identity isn't what matters in survival, psychological connectedness isn't what matters either. Psychological connectedness, according to Derek Parfit, is the 'holding of particular direct psychological connections,' for example, when a belief, a desire, or some other psychological feature continues to be had ; psychological connectedness consists in two other relations—resemblance plus a cause that produces it. For (...) our purposes, to say of a relation that it is 'what matters in survival' is to say that it carries the burden of responsibility, remorse, and regret for past misdeeds; and that it is what makes rational the anticipation of, and the special hopes and fears we have about, our own future experiences. A consequence of II is that if identity isn't what matters in survival, either something other than psychological connectedness is what matters or nothing matters. (shrink)

Analyzing the rate at which languages change can clarify whether similarities across languages are solely the result of cognitive biases or might be partially due to descent from a common ancestor. To demonstrate this approach, we use a simple model of language evolution to mathematically determine how long it should take for the distribution over languages to lose the influence of a common ancestor and converge to a form that is determined by constraints on language learning. We show that modeling (...) language learning as Bayesian inference ofnbinary parameters or the ordering ofnconstraints results in convergence in a number of generations that is on the order ofn log n. We relax some of the simplifying assumptions of this model to explore how different assumptions about language evolution affect predictions about the time to convergence; in general, convergence time increases as the model becomes more realistic. This allows us to characterize the assumptions about language learning (given the models that we consider) that are sufficient for convergence to have taken place on a timescale that is consistent with the origin of human languages. These results clearly identify the consequences of a set of simple models of language evolution and show how analysis of convergence rates provides a tool that can be used to explore questions about the relationship between accounts of language learning and the origins of similarities across languages. (shrink)

This paper argues that there are no people. If identity isn't what matters in survival, psychological connectedness isn't what matters either. Further, fissioning cases do not support the claim that connectedness is what matters. I consider Peter Unger's view that what matters is a continuous physical realization of a core psychology. I conclude that if identity isn't what matters in survival, nothing matters. This conclusion is deployed to argue that there are no people. Objections to Eliminativism are considered, especially that (...) morality cannot survive the loss of persons. (shrink)