Stoffregen & Bardy's target article is based on the assumption that our senses' ultimate purpose is to provide us with perfect information about the outside world. We argue that it is often more important that information be available quickly than that it be perfect. Consequently our nervous system processes different aspects of information about our surrounding as separately as possible. The separation is not between the senses, but between separate aspects of our surrounding. This results in inconsistencies between judgments: sometimes (...) because different frames of reference are used. Such inconsistencies are fundamental to the way the information is picked up, however, and hence cannot be avoided with clearer instructions to the subjects. (shrink)

We argue that one can explain why the influence of illusions decreases during a movement without assuming that different visual representations are used for planning and control. The basis for this is that movements are guided by a combination of correctly perceived information about certain attributes (such as a target's position) and illusory information about other attributes (such as the direction of motion). We explain how this can automatically lead to a decreasing effect of illusions when hitting discs that move (...) in an illusory direction, and when grasping objects of which the apparent size or orientation has been changed by an illusion. (shrink)

The colors we perceive are the outcome of an attempt to meaningfully order the spectral information from the environment. These colors are not the result of a straightforward mapping of a physical property to a sensation, but arise from an interaction between our environment and our visual system. Thus, although one may infer from a surface’ reflectance characteristics that it will be perceived as “colored,” true colors only arise by virtue of the interaction of the reflected light with the eye (...) (and brain) of an observer. (shrink)

In their target article, O'Regan & Noë (O&N) give convincing arguments for there being no elaborate internal representation of the outside world. We show two more categories of empirical results that can easily be understood within the view that the world serves as an outside memory that is probed only when specific information is needed.

The visual prediction that Nijhawan proposes cannot explain why the flash-lag effect depends on what happens after the flash. Moreover, using a visual prediction based on retinal image motion to compensate for neuronal time delays will seldom be of any use for motor control, because one normally pursues objects with which one intends to interact with ones eyes.

Norman tries to link the ecological and constructivist approaches to the dorsal and ventral pathways of the visual system. Such a link implies that the distinction is not only one of approach, but that different issues are studied. Norman identifies these issues as perception and action. The influence of contextual illusions is critical for Norman's arguments. We point out that fast (dorsal) actions can be fooled by contextual illusions while (ventral) perceptual judgements can be insensitive to them. We conclude that (...) both approaches can, in principle, be used to study visual information processing in both pathways. (shrink)

Dr Sydney Brenner has played a major, and unique, role in biology during the past 40 years. His contributions have ranged from key work on the structure of the genetic code and the existence of mRNA through the development of Caenorhabditis elegans as a key model system in developmental biology to genomic analysis and function in vertebrates. BioEssays went to interview Dr Brenner at his home in the cathedral city of Ely, England, on the significance of the genome (...) projects for human biology, in particular, and for biology, in general. (shrink)

Language -- Image -- Time -- Body -- Dream -- Myth -- Baudelaire -- Rescue -- Remembrance.

Quantifier variance is a well-known view in contemporary metaontology, but it remains very widely misunderstood by critics. Here we briefly and clearly explain the metasemantics of quantifier variance and distinguish between modest and strong forms of variance (Section I), explain some key applications (Section II), clear up some misunderstandings and address objections (Section III), and point the way toward future directions of quantifier-variance-related research (Section IV).

Metaphysicians often claim that some metaphysical theory should (or shouldn’t) be believed because it exhibits (or fails to exhibit) theoretical virtues such as simplicity. Metaphysicians also sometimes claim that the legitimacy of these sorts of appeals to theoretical virtues are vindicated by the similar appeals to theoretical virtues which scientists make in scientific theory choice. One objection to this methodological move is to claim that the metaphysician misdescribes the role that theoretical virtues play within science. In this paper I defend (...) the metaphysician’s use of theoretical virtues against this objection. (shrink)

In the debate over the existence of composite objects, it is sometimes suggested that perceptual evidence justifies belief in composite objects. But it is almost never suggested that we are perceptually justified in believing in composite objects on the basis of the fact that the phenomenology of our perceptual experiences enables us to discriminate between situations where there are composite objects and situations where there are merely simples arranged composite object-wise. But while the thought that the phenomenology of our perceptual (...) experiences cannot enable us to discriminate between situations where there are composite objects and situations where there are merely simples arranged composite object-wise is commonly taken for granted, it requires some defence, both in light of its importance in shaping the debate and in light of its recently coming under attack by a prominent philosopher of perception. In this paper, I offer such a defence. (shrink)

Il s'agit là d'un livre sur la lecture et l'écriture. Son véritable thème est cependant l'impertinence, voire l'impossibilité. A quoi bon, en effet, écrire sur la lecture quand il suffit de lire? Et que peut-on dire de plus sur l'écriture si l'on écrit déjà? Ainsi ce livre ne comportera-t-il, à proprement parler, aucune matière, et ne transmettra-t-il essentiellement qu'un mouvement : celui de la lecture des testes des autres et de l'écriture qu'elle entraînera. Seul le mouvement peut changer une impossibilité (...) en possibilité, voire en nécessité. Ayant compris, dans une vie antérieure de lecteur, l'impossibilité du Tractatus de Wittgenstein comme livre de pensée, on touchera ici à la nécessité qu'il soit écrit. Puis on explorera, avec " Pierre Ménard, auteur, du Quichotte ", une curieuse possibilité, celle que cette nécessité d'écrire soit le fait du lecteur et non pas de l'auteur. Enfin on aboutira, avec Joseph Joubert et Maurice Blanchot, à l'impossibilité d'écrire, c'est-à-dire à la question de la possibilité de la littérature posée enfin avant celle de la philosophie. C'est en effet avec Blanchot que s'ouvrira le passage entre la philosophie et la littérature et que l'engin de l'écriture atteindra sa " vitesse de libération ". Il prendra alors tout son sens d'une écriture postérieure qui, bien qu'elle fasse suite à l'impossibilité de la pensée, n'en a plus forcément besoin du " pré-texte ". C'est le moment où l'on conçoit, avec Blanchot, " que, dans une œuvre littéraire, on puisse exprimer des pensées aussi difficiles et d'une forme aussi abstraite que dans un ouvrage philosophique, mais à condition qu'elles ne soient pas encore pensées ". (shrink)

This work seeks to shed light on one of the most enigmatic masterpieces of twentieth-century thought.

This article concerns the ways in which authors from various fields conceptualise the ethical issues arising in the conduct of research. We reviewed critically and systematically the literature concerning the ethics of conducting research in order to engage in a reflection about the vocabulary and conceptual categories used in the publications reviewed. To understand better how the ethical issues involved in conducting research are conceptualised in the publications reviewed, we 1) established an inventory of the conceptualisations reviewed, and 2) we (...) critically assessed them. We found that the publications reviewed mostly showed examples of descriptive ethics, in that most authors describe ethical issues without reflecting much on them, which could be explained both by 1) a lack of ethical education in research contexts, and 2) by the fact that we do not know what researchers know (or do not) about ethical issues. Additionally, the definitions identified in the publications are scarce and at times imprecise, but this seems more to point out the ethical vocabulary’s difficulties in certain contexts. Further, very few authors offer proper conceptualisations of the ethical issues arising in conducting research. When dealing with vast arrays of ethical issues to conceptualise, perhaps one ought to remember that some typologies already exist that could guide further reflection and help understand other realities for which the current ethical vocabulary may be lacking. We believe that combining the reviewed typologies, both with other well-developed typologies and critical reflection, could help support better ethical practice in conducting research. (shrink)

Before the semester begins, a teacher tells his students: “There will be exactly one exam this semester. It will not take place on a day that is an immediate-successor of a day that you are currently in a position to know is not the exam-day”. Both the students and the teacher know – it is common knowledge – that no exam can be given on the first day of the semester. Since the teacher is truthful and reliable, it seems that (...) the students can know that what he says is true. However, in that case, assuming the students can know that they know whatever it is they know (KK) and assuming their knowledge is closed under entailment (closure), the students can reason from what they know to the conclusion that no exam will take place during the semester. This conclusion contradicts what they supposedly know: that there will be an exam. This puzzle, we argue, gives rise to a new consideration for the rejection of KK. We discuss unique features of the argument, especially in comparison to Timothy Williamson's rejection of KK in light of other versions of the surprise exam paradox. (shrink)

Background In February, 2015, the Supreme Court of Canada struck down the ban on medical assistance in dying. In June, 2016, the federal government passed Bill C-14, permitting MAiD. Current medical students will be the first physician cohort to enter a system permissive of MAiD, and may help to ensure equitable access to care. This study assessed medical student views on MAiD, factors influencing these views, and opportunities for medical education. Methods An exploratory cross-sectional survey was developed and distributed to (...) medical students across all years of a three-year Canadian undergraduate medical program. The investigators administered the survey to participants during academic sessions from November to December, 2015. Analysis of the results included summary descriptive statistics, Pearson’s chi-square test of independence to identify differences between participants by year of study, logistic regression to identify factors that influence students’ stances on MAiD, and Wilcoxon signed rank test to measure changes in student support for MAiD and comfort discussing MAiD. Results There were 405 participants for a response rate of 87%. The majority of students supported the Supreme Court’s decision, 61% would provide the means for a patient to end their life, and 38% would personally administer a lethal medication. Students who were more willing to provide the means for MAiD found medical education/clinical experience and patient autonomy to be important contributors to their stances on MAiD. Those students who were less willing to provide the means for MAiD found religious/spiritual beliefs and teachings, as well as concern about potential negative consequences, to be important contributors to their stances on MAiD. Educational training desired by participants included medicolegal, communication skills, technical skills, and religious. Conclusions Medical students generally supported and would provide the means for MAiD to patients. They also indicated a desire for directed medical education on MAiD. (shrink)

Introduction générale à la philosophie des sciences du 20e siècle.

Eli Alshanetsky considers how we make our thoughts clear to ourselves in the process of putting them into words and examines the paradox of those difficult cases where we do not already know what we are struggling to articulate.

Scientists often diverge widely when choosing between research programs. This can seem to be rooted in disagreements about which of several theories, competing to address shared questions or phenomena, is currently the most epistemically or explanatorily valuable—i.e. most successful. But many such cases are actually more directly rooted in differing judgments of pursuit-worthiness, concerning which theory will be best down the line, or which addresses the most significant data or questions. Using case studies from 16th-century astronomy and 20th-century geology and (...) biology, I argue that divergent theory choice is thus often driven by considerations of scientific process, even where direct epistemic or explanatory evaluation of its final products appears more relevant. Broadly following Kuhn’s analysis of theoretical virtues, I suggest that widely shared criteria for pursuit-worthiness function as imprecise, mutually-conflicting values. However, even Kuhn and others sensitive to pragmatic dimensions of theory ‘acceptance’, including the virtue of fruitfulness, still commonly understate the role of pursuit-worthiness—especially by exaggerating the impact of more present-oriented virtues, or failing to stress how ‘competing’ theories excel at addressing different questions or data. This framework clarifies the nature of the choice and competition involved in theory choice, and the role of alternative theoretical virtues. (shrink)

This paper examines the notion of fouls in sports. In the first part of the paper, we examine some actual distinctions and classifications between different kinds of fouls. In the second part we examine the significance, validity, and justification of these classifications from a normative perspective.The term ‘foul’ evokes negative connotation; some would say—negative normative connotations. Conventional wisdom suggests that typically to commit fouls is, by definition, to go against the rules or principles of the contest. Since sport contests are (...) constitutive activities—this means that to foul is to go against the essence of the contest. In other words, to commit fouls seems not to play the game; it seems unsporting. Consider the following typical example: in a premiership match in 2014 Hull’s forward Nikica Jelavic spun around Company and had a clear path to the goal. Manchester City’s defender Vincent Kompany then held him back. Although immediately ejected from the game, it is noteworthy that Kompany... (shrink)

In this book, Eli Hirsch focuses on identity through time, first with respect to ordinary bodies, then underlying matter, and eventually persons.

Many say that ontological disputes are defective because they are unimportant or without substance. In this paper, we defend ontological disputes from the charge, with a special focus on disputes over the existence of composite objects. Disputes over the existence of composite objects, we argue, have a number of substantive implications across a variety of topics in metaphysics, science, philosophical theology, philosophy of mind, and ethics. Since the disputes over the existence of composite objects have these substantive implications, they are (...) themselves substantive. (shrink)

No longer confined to traditional institutions devoted to Talmudic studies, havruta work, or the practice of students studying materials in pairs, has become a relatively widespread phenomenon across denominational and educational settings of Jewish learning. However, until now there has been little discussion of what havruta text study entails and how it might be conceptualized and taught. This book breaks new ground from two perspectives: by offering a model of havruta text study situated in broader theories of interpretation and learning, (...) and by treating havruta text study as composed of textual, interpersonal and intra-personal practices which can be taught and learned. We lay out the conceptual foundations of our approach and provide examples of their pedagogical implementation for the teaching of havruta text study. Included are illustrative lesson plans, teachers' notes and students’ reflections, exercises for students, and other instructional materials for teaching core concepts and practices. (shrink)

Discovering laws of nature was a way to worship a law-giving God, during the Scientific Revolution. So why should we consider it worthwhile now, in our own more secularized science? For historical perspective, I examine two competing early modern theological traditions that related laws of nature to different divine attributes, and their secular legacy in views ranging from Kant and Nietzsche to Humean and ‘governing’ accounts in recent analytic metaphysics. Tracing these branching offshoots of ethically charged God-concepts sheds light on (...) how our ethical ideals and ideas of natural order can still be valuably integrated. Early modern intellectualists valued the law-governed order of nature as a sign of divine Reason. In turn, Reason traditionally ascribed to God has now been partly reclaimed for humans, reframing the value of natural order anthropocentrically, in terms of the value of our own intelligence. Alternatively, Reason may be reclaimed for nature itself, as in an ‘objective’ idealism or metaphysical rationalism. However, beyond divine Reason, an influential voluntarist tradition in theology stressed a connection between laws of nature and God’s Power or free Will. Tracking how divine Power has been reinvested in human beings provides a broader context for instrumentalism and related lineages of empiricism. But secularization can also transfer Power from God to the impersonal natural world. In this light, current scientific interest in lawlike order may also reflect the inherent value of brute necessity or inhuman causal power in nature: this is a deeper way to reject anthropocentrism and to show our respect for the environment. (shrink)

Metaphysicians frequently appeal to the idea that theoretical simplicity is truth conducive in metaphysics, in the sense that, all other things being equal, simpler metaphysical theories are more likely to be true. In this paper I defend the notion that theoretical simplicity is truth conducive in metaphysics, against several recent objections. I do not give any direct arguments for the thesis that simplicity is truth conducive in metaphysics, since I am aware of no such arguments. I do argue, however, that (...) there is no special problem with the notion that simplicity is truth conducive in metaphysics. More specifically, I argue that if you accept the idea that simplicity is truth conducive in science, then it would be objectionably arbitrary to reject the idea that simplicity is truth conducive in metaphysics. (shrink)

v. 1. Pensadores navarros, siglos XII-XX.

A sense of unity -- Basic objects : a reply to Xu -- Objectivity without objects -- The vagueness of identity -- Quantifier variance and realism -- Against revisionary ontology -- Comments on Theodore Sider's four dimensionalism -- Sosa's existential relativism -- Physical-object ontology, verbal disputes, and common sense -- Ontological arguments : interpretive charity and quantifier variance -- Language, ontology, and structure -- Ontology and alternative languages.

In “The logic of deep disagreements” (Informal Logic, 1985), Robert Fogelin claimed that there is a kind of disagreement – deep disagreement – which is, by its very nature, impervious to rational resolution. He further claimed that these two views are attributable to Wittgenstein. Following an exposition and discussion of that claim, we review and draw some lessons from existing responses in the literature to Fogelin’s claims. In the final two sections (6 and 7) we explore the role reason can, (...) and sometimes does, play in the resolution of deep disagreements. In doing this we discuss a series of cases, mainly drawn from Wittgenstein, which we take to illustrate the resolution of deep disagreements through the use of what we call “rational persuasion.” We conclude that, while the role of argumentation in “normal” versus “deep” disagreements is characteristically different, it plays a crucial role in the resolution of both. (shrink)

According to the Counterfactual Comparative Account of harm and benefit, an event is overall harmful for a subject to the extent that this subject would have been better off if it had not occurred. In this paper we present a challenge for the Counterfactual Comparative Account. We argue that if physical processes are chancy in the manner suggested by our best physical theories, then CCA faces a dilemma: If it is developed in line with the standard approach to counterfactuals, then (...) it delivers that the value of any event for a subject is indeterminate to the extreme, ranging from terribly harmful to highly beneficial. This problem can only be avoided by developing CCA in line with theories of counterfactuals that allow us to ignore a-typical scenarios. Doing this generates a different problem: when the actual world is itself a-typical we will sometimes get the result that the counterfactual nonoccurrence of an actual benefit is itself a benefit. An account of overall harm bearing either of these two implications is deficient. Given the general aspiration to account for deprivational harms and the dominance of the Counterfactual Comparative Account in this respect, theorists of harm and benefit face a deadlock. (shrink)

Mereological nihilism (henceforth just "nihilism") is the thesis that composition never occurs. Nihilism has often been defended on the basis of its theoretical simplicity, including its ontological simplicity and its ideological simplicity (roughly, nihilism's ability to do without primitive mereological predicates). In this paper I defend nihilism on the basis of the theoretical unification conferred by nihilism, which is, roughly, nihilism's capacity to allow us to take fewer phenomena as brute and inexplicable. This represents a respect in which nihilism enjoys (...) greater theoretical simplicity than its rivals which has not yet been explored, and which is immune to many of the objections which have been leveled against previous arguments for nihilism from nihilism's theoretical simplicity. Composition as identity might be thought to confer a similar degree of theoretical unification as nihilism. I end the paper by arguing that this is not the case. (shrink)

Despite an intractable judiciary, there is widespread consensus within the legal academy that jury nullification is compatible with the rule of law. This proposition is most strongly tested by where a jury nullifies simply because it disagrees with the law itself. While some substantive nullifications can comport with the rule of law, most commentatorsjustice,vely undifferentiated view of a morality (even though jurisdictional and vicinage morality can diverge). In doing so, a healthy vision of antityrannical nullifications is presented, but this leaves (...) out many problematic cases. Once these errors are rectified, a more nuanced picture emerges, and it becomes apparent that localism will often disrupt the congruence feature of the rule of law. (shrink)

While democracy is derided for a variety of reasons in Plato’s thought, his most damning critique of that regime type does not involve an observation about democracy qua democracy, but of the transition that it so easily engenders: the decline to tyranny. Regimes are composed of individuals and groups, though, and Plato is anxious to ascribe culpability for the degradation. Two actors are the primary focus of his analysis — the political leaders and the demos. At times he emphasizes the (...) puissance of the demos, but in other passages he suggests it is the leaders who are most authoritative. This paper discusses these apparently contradictory passages, and works towards a reconciliation. It argues that neither is assigned sole culpability, as both work in complex synrgy, and that the underlying cause of the decline—and the motivator behind both actors — is not simply freedom, but greed for material wealth. (shrink)

Until rather recently, philosophy, when practiced as a way of life, was, for most, a communal enterprise of mutually reinforced personal cultivation. It is time, yet again, to revitalize this lost, but vital, intercultural mode of philosophy.

Segue abaixo a tradução do alemão da seção dedicada ao cinismo presente nas Lições Sobre a História da Filosofia de Georg Wilhelm Friedrich Hegel (1770-1831). Na seção em questão, o filósofo alemão aborda não somente a história da escola cínica, mas também seus princípios, suas influências e a importância que esse movimento teve para o pensamento filosófico posterior – sobretudo para o estoicismo.