Employers and governments are interested in the use of serological testing to allow people to return to work before there is a vaccine for SARS-CoV-2. We articulate the preconditions needed for the implementation of antibody testing, including the role of the U.S. Food & Drug Administration.

De origen francés y griego, el Dr. Alexandre Christoyanno-poulos creció en Bruselas aunque lleva viviendo en Reino Unido casi desde 1997. En University of Kent estudióEconomía, Relaciones Internacionales y Estudios Europeos, y por último, Ciencias Políticas y Religión. Comenzó a trabajar en University of Kent y en Canterbury Christ Church University. Desde septiembre de 2010 es profesor de Ciencias Políticas y Relaciones Internacionales en la Loughborough University. Ha publicado Christian Anarchism: A Political Commentary on the Gospel (2010); en 2014 (...) aparecerá su Leo Tolstoy’s Political Thought. Y ha editado un tercero: Religious Anarchism: New Perspectives (2009).Entre sus artículos destacan: “Jesus Christ against the Westphalian Leviathans:A Christian Anarchist Critique of Our Coercive, Idolatrous and Unchristian International Order”; “Leo Tolstoy on the State: A Detailed Picture of Tolstoy’s Denunciation of State Violence and Deception”; “Turning the Other Cheek to Terrorism: Reflections on the Contemporary Significance of Leo Tolstoy’s Exegesis of the Sermon on the Mount” y “Love, Justice, and Social Eschatology.”Si deseas conocer más acerca del trabajo del Dr. Alexandre Christoyannopoulos puede visitarse su página web. (shrink)

Alexandre Koyré. of the fixed stars is infinite commit a contradiction in adjecto. In truth, an infinite body cannot be comprehended by thought. For the concepts of the mind concerning the infinite are either about the meaning oftheterm "infinite,"  ...

This collection of six essays centers on Professor Koyre;'s great theme: the relative importance of metaphysics and observation, with controlled experiment a kind of marriage between the two. Professor Koyre;'s thesis might be summed up as a claim that when one is seeking to explain the scientific revolution, attention must be concentrated on the philosophical outlook of the scientist and away from speculative theories. At the time of his death, Alexandre Koyre; was a professor at the Ecole Pratique des (...) Hautes Études (Sorbonne) and a memeber of the Institute for Advanced Study in Princeton. (shrink)

Patients suffering from the Cotard syndrome can deny being alive, having guts, thinking or even existing. They can also complain that the world or time have ceased to exist. In this article, I argue that even though the leading neurocognitive accounts have difficulties meeting that task, we should, and we can, make sense of these bizarre delusions. To that effect, I draw on the close connection between the Cotard syndrome and a more common condition known as depersonalisation. Even though they (...) are not delusional, depersonalised patients seem to have experiences that are quite similar to those of Cotard patients. I argue that these experiences are essentially characterised by a lack of subjective character and of two other structural features of experience, which I call ‘the present character’ and ‘the actual character’. Cotard's nihilistic delusions simply consist in taking these anomalous experiences at face value. (shrink)

The analysis of the circumstances in which Alexander Luria came to send letters to Kurt Goldstein sheds some light on the historical context of their existence. The documents show how strongly Luria and some of his colleagues were interested in Goldstein’s works in the early 1930s. These documents dating from the post Second World War years also testify to the beginning of the more than purely professional relationship between the two recognized neurologists (or neuropsychologists).

Computational reproducibility possesses its own dynamics and narratives of crisis. Alongside the difficulties of computing as an ubiquitous yet complex scientific activity, computational reproducibility suffers from a naive expectancy of total reproducibility and a moral imperative to embrace the principles of free software as a non-negotiable epistemic virtue. We argue that the epistemic issues at stake in actual practices of computational reproducibility are best unveiled by focusing on software as a pivotal concept, one that is surprisingly often overlooked in accounts (...) of reproducibility issues. Software is not only about designing and coding but also about maintaining, supporting, distributing, licensing, and governance; it is not only about developers but also about users. We focus on openness debates among computational chemists involved in molecular modeling software packages as empirical grounding for our argument. We then identify and analyse four epistemic characteristics as key to the role of software in computational reproducibility. (shrink)

(2013). Does consciousness entail subjectivity? The puzzle of thought insertion. Philosophical Psychology: Vol. 26, No. 2, pp. 291-314. doi: 10.1080/09515089.2011.625117.

Several advocates of the lively field of “metaphysics of science” have recently argued that a naturalistic metaphysics should be based solely on current science, and that it should replace more traditional, intuition-based, forms of metaphysics. The aim of the present paper is to assess that claim by examining the relations between metaphysics of science and general metaphysics. We show that the current metaphysical battlefield is richer and more complex than a simple dichotomy between “metaphysics of science” and “traditional metaphysics”, and (...) that it should instead be understood as a three dimensional “box”, with one axis distinguishing “descriptive metaphysics” from “revisionary metaphysics”, a second axis distinguishing a priori from a posteriori metaphysics, and a third axis distinguishing “commonsense metaphysics”, “traditional metaphysics” and “metaphysics of science”. We use this three-dimensional figure to shed light on the project of current metaphysics of science, and to demonstrate that, in many instances, the target of that project is not defined with enough precision and clarity. (shrink)

Alexandre Koyré a réuni trois ans avant sa mort (1964) ces Etudes d'histoire de la pensée philosophique. On retrouve ici la curiosité inlassable de l'auteur des Etudes newtoniennes, qui nous livre une histoire de la pensée philosophique de Zénon à Martin Heidegger, de Spinoza à Condorcet et à Louis de Bonald. L'auteur aborde à la fois les questions sur le vide et l'espace infini au XIVe siècle, celles sur le temps d'après la Logique d'Iéna, dont la doctrine inspirera la (...) phénoménologie de Husserl, de Heidegger et de Sartre, et d'autres sur la langue et la terminologie hégéliennes. (shrink)

Using emotional film clips is one of the most popular and effective methods of emotion elicitation. The main goal of the present study was to develop and test the effectiveness of a new and comprehensive set of emotional film excerpts. Fifty film experts were asked to remember specific film scenes that elicited fear, anger, sadness, disgust, amusement, tenderness, as well as emotionally neutral scenes. For each emotion, the 10 most frequently mentioned scenes were selected and cut into film clips. Next, (...) 364 participants viewed the film clips in individual laboratory sessions and rated each film on multiple dimensions. Results showed that the film clips were effective with regard to several criteria such as emotional discreteness, arousal, positive and negative affect. Finally, ranking scores were computed for 24 classification criteria: Subjective arousal, positive and negative affect (derived from the PANAS; Watson & Tellegen, 1988), a positive and a negative affect scores derived from the Differential Emotions Scale (DES; Izard et al., 1974), six emotional discreteness scores (for anger, disgust, sadness, fear, amusement and tenderness), and 15 “mixed feelings” scores assessing the effectiveness of each film excerpt to produce blends of specific emotions. In addition, a number of emotionally neutral film clips were also validated. The database and editing instructions to construct the film clips have been made freely available in a website. (shrink)

In this paper, we put forward a new account of emergence called “transformational emergence”. Such an account captures a variety of emergence that can be considered as being diachronic and weakly ontological. The fact that transformational emergence actually constitutes a genuine form of emergence is motivated. Besides, the account is free of traditional problems surrounding more usual, synchronic versions of emergence, and it can find a strong empirical support in a specific physical phenomenon, the fractional quantum Hall effect, which has (...) long been touted as a paradigmatic case of emergence. (shrink)

Descartes was certain that he was thinking and he was accordingly certain that he existed. Like Descartes, we seem to be more certain of our thoughts and our existence than of anything else. What is less clear is the reason why we are thus certain. Philosophers throughout history have provided different interpretations of the cogito, disagreeing both on the kind of thoughts it characterizes and on the reasons for its cogency. According to what we may call the empiricist interpretation of (...) the cogito, I can only claim to be certain of having experiences, and this certainty, as well as that of my own existence, stems from their phenomenal and subjective character. According to rationalist interpretations, on the other hand, I am certain of having some self-reflexive propositional attitudes, and this certainty derives from their rational features. Psychiatric patients suffering from acute forms of depersonalization or of the Cotard syndrome often doubt that they think and exist, and might even believe that they don't. I argue that their study allows us to favor the empiricist interpretation of the cogito. (shrink)

Natural modalities are often analysed from an abstract point of view where they are associated with putative laws of nature. However, the way possibilities are represented in physics is more complex. Lagrangian mechanics, for instance, involves two different layers of modalities: kinematical and dynamical possibilities. This paper examines the status of these two layers, both in the classical and quantum case. The quantum case is particularly problematic: we identify four possible interpretive options. The upshot is that a close inspection of (...) the way possibilities are represented in physics could lead to new ways of thinking about natural modalities. (shrink)

Basic self-awareness is the kind of self-awareness reflected in our standard use of the first-person. Patients suffering from severe forms of depersonalization often feel reluctant to use the first-person and can even, in delusional cases, avoid it altogether, systematically referring to themselves in the third-person. Even though it has been neglected since then, depersonalization has been extensively studied, more than a century ago, and used as probe for understanding the nature and the causal mechanisms of basic self-awareness. In this paper, (...) I argue that depersonalized patients indeed have an impaired basic self-awareness, and that their study allows us both to favor one specific theory of basic self-awareness and to understand what is wrong with its rivals. According to the favored theory, which I call Cartesian, we are basically self-aware in virtue of being acquainted with ourselves through introspection. (shrink)

Consider an infinite series whose items are each explained by their immediate successor. Does such an infinite explanation explain the whole series or does it leave something to be explained? Hume arguably claimed that it does fully explain the whole series. Leibniz, however, designed a very telling objection against this claim, an objection involving an infinite series of book copies. In this paper, I argue that the Humean claim can, in certain cases, be saved from the Leibnizian “infinite book copies” (...) objection, and that this provides an interesting way to defuse some cosmological arguments for the existence of God and to give a non-theistic but complete explanation of the Universe. In the course of my argumentation, I also show that circular explanations can be “self-explanatory” as well: explaining two items by each other can explain the couple of items tout court. (shrink)

This paper focuses on one particular case that connects climate justice and climate economics. Its contribution is twofold. First, it aims at providing a sound normative foundation for carbon pricing mechanisms around the notions of a ‘right to energy’, the ‘duty not-to-harm’ and an argument for ‘restricted compensation’. Second, it identifies the normative elements from theories of climate justice that should guide the design of market-based instruments for climate change mitigation. This will cast light on the particular moral relevance of (...) the act of internalizing a negative externality and of the funds generated by putting a price on carbon. (shrink)

In a previous article on cosmological arguments, I have put forward a few examples of complete infinite and circular explanations, and argued that complete non-wellfounded explanations such as these might explain the present state of the world better than their well-founded theistic counterparts (Billon, 2021). Although my aim was broader, the examples I gave there implied merely causal explanations. In this article, I would like to do three things: • Specify some general informative conditions for complete and incomplete non-wellfounded causal (...) explanations that can be used to assess candidate explanations and to generate new examples of complete non-wellfounded explanations. • Show that these conditions, which concern chains of causal explanations, easily generalize to chains of metaphysical, grounding explanations and even to chains involving other “determination relations” such as supervenience. • Apply these general conditions to the recent debates against the existence of nonwellfounded chains of grounds and show, with a couple of precise examples, that the latter can be complete, and that just like in the case of causal explanations, non-wellfoundedness can in fact be an aset rather than a liability. (shrink)

Les travaux d'Alexandre Matheron sur Spinoza et sur la philosophie de l'âge classique représentent un des points forts de l'école française d'histoire de la philosophie. Après Individu et Communauté chez Spinoza et Le Christ et le salut des ignorants, ces études complètent la vision du spinozisme et de son contexte, de ses racines et de sa signification historique. Elles traitent de tous les domaines du rationalisme classique : métaphysique, théorie de la connaissance, analyse des passions, éthique, politique et religion. (...) La méthode qui anime ces textes est celle d'une analyse structurale de la pensée philosophique : il s'agit de prendre au sérieux le caractère conceptuel des doctrines, leurs enchaînements argumentatifs, la rigueur et la cohérence de leurs catégories. Mais la considération de l'architecture d'un monument théorique ne se conçoit pas sans la biographie non de l'auteur mais de l'oeuvre : comment Spinoza est devenu Spinoza ; en d'autres termes, comment il a forgé sa pensée en traversant les arguments et les concepts de Machiavel, de Hobbes ou de Descartes pour arriver à des formulations de plus en plus spinozistes de son ontologie de la puissance. Le rationalisme absolu apparaît ainsi non seulement comme contenu des pensées étudiées mais aussi comme méthode d'histoire de la philosophie. Une démarche qui a donné des outils intellectuels à plusieurs générations de chercheurs et qui indique aujourd'hui le chemin pour pénétrer dans l'univers de la pensée classique. La seule façon rigoureuse de nous demander ce qui pour nous, de ces philosophies, est vrai. (shrink)

The realisation of justice in the real world requires moral principles and political action. This book offers a roadmap for these two notions to connect.

In this theoretical contribution, we interpret the notion of professional development in the light of concepts coming from cognitive development. This brings us to consider teacher training as not only having to allow the elaboration of skills, but also as having to encourage the development of new cognitive structures. We explore the theoretical concepts in relation with certain processes revealed by the reflexive texts of the students. Finally, we propose ways that could foster certain dimensions of global professional development in (...) learners, among which self-regulated learning, the focus on certain concerns and taking into account certain types of information. (shrink)

Patients suffering from depersonalization complain of feeling detached from their body, their mental states, and actions or even from themselves. In this chapter, I argue that depersonalization consists in the lack of a phenomenal feature that marks my experiences as mine, which is usually called “mineness,” and that the study of depersonalization constitutes a neglected yet incomparable probe to assess empirically the scope, role, and even the nature of mineness. Here is how I will proceed. After describing depersonalization (§2) and (...) arguing that it involves a lack of mineness (§3) I will confront a series of objections (§4). I will then spell out what depersonalization can teach us about the scope of mineness (§5), about its role and psychological function (§6) and even about its nature (§7). (shrink)

In their target article, Kammerer and Frankish (K&F) wonder what forms introspection could take in non-human animals, enhanced humans, artificial intelligences, and aliens. In this short note, I focus on disordered or neurodiverse minds. More specifically, I assess a claim that has often been made more or less implicitly to the effect that, in virtue of their conditions, people with schizophrenia or depersonalization disorder have superior introspective abilities that allow them to discern some important but normally hidden characteristics of our (...) experiences — call this the superintrospectionitis thesis. In the course of my argumentation, I introduce distinctions and questions concerning the nature of the architecture and the function of introspection that might enrich K&F's framework. (shrink)

Cauchy’s contribution to the foundations of analysis is often viewed through the lens of developments that occurred some decades later, namely the formalisation of analysis on the basis of the epsilon-delta doctrine in the context of an Archimedean continuum. What does one see if one refrains from viewing Cauchy as if he had read Weierstrass already? One sees, with Felix Klein, a parallel thread for the development of analysis, in the context of an infinitesimal-enriched continuum. One sees, with Emile Borel, (...) the seeds of the theory of rates of growth of functions as developed by Paul du Bois-Reymond. One sees, with E. G. Björling, an infinitesimal definition of the criterion of uniform convergence. Cauchy’s foundational stance is hereby reconsidered. (shrink)

This chapter (in French) compares the ways to access to events in science and in art. In particular, the Déotte's concept of "appareil" is discussed. To be published in Jean-Louis Déotte and Sylvestra Mariniello (ed.), Appareil et Intermédialité, L'Harmattan, 2007.

" Alexandre est la joie. Celui qui n'a pas rencontré la joie, n'a pas rencontré Alexandre ", écrit Bernard Campan en ouverture de ce livre. A travers des extraits d'entretiens radiophoniques menés avec notamment Albert Jacquard et d'une conférence sur le thème de la résilience, Alexandre Jollien, tel un Socrate du XXIe siècle, fait part de son approche de la philosophie et met en œuvre son talent de passeur. Exégète des textes anciens, amoureux de la dialectique et (...) pédagogue averti, il nous fait comprendre la pensée de Spinoza et nous interroger avec Boèce. En forme d'écho, le comédien et réalisateur Bernard Campan, ami du philosophe suisse, évoque le cheminement de cette amitié sprirituelle avec une infinie délicatesse et une profonde pudeur. (shrink)

Alexandre Jollien poursuit sa quête philosophique d’une sagesse qui nous apporte la paix intérieure. Si la joie est le but, la voie royale pour la vivre, thème directeur de ces Pensées, est l’abandon ou, en termes bouddhistes, la « non-fixation ». Ne pas « fixer », c’est se débarrasser des représentations, étiquettes qui figent les autres, le monde en des identités immuables, et par là même laisser la vie être ce qu’elle est, ne rien vouloir changer, ne pas s’obstiner (...) contre, être ouvert au changement. Cela rend la perte vivable. Cela rend ouvert à l’autre, au monde. C’est aussi un chemin déterminant pour s’accepter, soi, tel que l’on est, même handicapé, travail permanent d’Alexandre Jollien, et source de ses livres. Chacune des 20 pensées réunies dans celui-ci est à la fois un remède et une méditation vivante sur les obstacles qui nous écartent de la joie, et les chemins qui nous y conduisent. L’abandon, l’amitié, la détermination, la fragilité, la gratuité, etc. : autant de voies qu’Alexandre Jollien s’efforce d’expérimenter au quotidien, puisant dans les petits événements, heureux ou malheureux, qui ponctuent sa vie (une rencontre, une réflexion de ses enfants, une querelle, une impatience, une angoisse...), les ressources pour les accueillir sans souffrance. Il esquisse ainsi « un art de vivre qui nous dépouille du trop et nous aide à trouver l’audace de danser joyeusement dans la ronde de l’existence ». (shrink)

Most paradoxes of self-reference have a dual or ‘hypodox’. The Liar paradox (Lr = ‘Lr is false’) has the Truth-Teller (Tt = ‘Tt is true’). Russell’s paradox, which involves the set of sets that are not self-membered, has a dual involving the set of sets which are self-membered, etc. It is widely believed that these duals are not paradoxical or at least not as paradoxical as the paradoxes of which they are duals. In this paper, I argue that some paradox’s (...) duals or hypodoxes are as paradoxical as the paradoxes of which they are duals, and that they raise neglected and interestingly different problems. I first focus on Richard’s paradox (arguably the simplest case of a paradoxical dual), showing both that its dual is as paradoxical as Richard’s paradox itself, and that the classical, Richard-Poincaré solution to the latter does not generalize to the former in any obvious way. I then argue that my argument applies mutatis mutandis to other paradoxes of self-reference as well, the dual of the Liar (the Truth-Teller) proving paradoxical. (shrink)

The work of Henri Bergson, the foremost French philosopher of the early twentieth century, is not usually explored for its political dimensions. Indeed, Bergson is best known for his writings on time, evolution, and creativity. This book concentrates instead on his political philosophy—and especially on his late masterpiece, _The Two Sources of Morality and Religion_—from which Alexandre Lefebvre develops an original approach to human rights. We tend to think of human rights as the urgent international project of protecting all (...) people everywhere from harm. Bergson shows us that human rights can also serve as a medium of personal transformation and self-care. For Bergson, the main purpose of human rights is to initiate all human beings into love. Forging connections between human rights scholarship and philosophy as self-care, Lefebvre uses human rights to channel the whole of Bergson's philosophy. (shrink)

One of the twentieth century’s most brilliant and unconventional thinkers, Alexandre Kojève was a Russian émigré to France whose lectures on Hegel in the 1930s galvanized a generation of French intellectuals. Although Kojève wrote a great deal, he published very little in his lifetime, and so the ongoing rediscovery of his work continues to present new challenges to philosophy and political theory. Written in 1931 but left unfinished, Atheism is an erudite and open-ended exploration of profound questions of estrangement, (...) death, suicide, and the infinite that demonstrates the range and the provocative power of Kojève’s thought. Ranging across Heidegger, Buddhism, Christianity, German idealism, Russian literature, and mathematics, Kojève advances a novel argument about freedom and authority. He investigates the possibility that there is not any vantage point or source of authority—including philosophy, science, or God—that is outside or beyond politics and the world as we experience it. The question becomes whether atheism—or theism—is even a meaningful position since both affirmation and denial of God’s existence imply a knowledge that seems clearly outside our capacities. Masterfully translated by Jeff Love, this book offers a striking new perspective on Kojève’s work and its implications for theism, atheism, politics, and freedom. (shrink)

This is a commentary on Andrea Lavazza and Murilo Vilaça's article "Human Extinction and AI: What We Can Learn from the Ultimate Threat" (Lavazza & Vilaça, 2024). I discuss the potential concern that their proposal to create artificial successors to "insure" against the tragedy of human extinction might mean being too quick to accept that catastrophic prospect as inevitable, rather than single-mindedly focusing on avoiding it. I also consider the question of the value that we might reasonably assign to such (...) a future of artificial successors under the assumption that they do not enjoy phenomenal consciousness. (shrink)

Depersonalization consists in a deep modification of the way things appear to a subject, leading him to feel estranged from his body, his actions, his thoughts, and his mind, and even from himself. Even though, when it was discovered at the end of the 19th century, this psychiatric condition was widely used to probe certain aspects of bodily awareness, and more specifically the sense of bodily ownership (SBO), it has been strangely neglected in contemporary debates. In this chapter, I argue (...) that because of three specific features, depersonalization raises some important challenges for current theories of the SBO. The first feature — call it “generality” — is that depersonalization does not only affect the sense of bodily ownership but also, typically, the sense of ``mental ownership’’ (SMO), the sense of agency or ``action ownership’’ (SOA), and the subject’s core sense of herself (CSS), that is, her awareness of herself as an I. The second feature is that except for the symptoms of depersonalization, depersonalized patients are hard to distinguish, psychologically, from normal subjects. This makes it hard to find psychological features that might explain their condition. The last feature, call it “fundamentality” is that the psychological features that do seem abnormal among depersonalized patients seem more likely to be explained by depersonalization than to explain it. These three features raise three challenges — the centrality challenge, the dissociation challenge, and the grounding challenge. Taken together, I will argue, these challenges suggest that the SBO depends on a form of phenomenal “mineness” that would mark my mental states as mine and that cannot be accounted for in sensorimotor, cognitive, or even affective terms. A phenomenal mineness that indeed seems to be psychologically primitive, and only accountable in neurophysiological terms. (shrink)

According to what we will call subjectivity theories of consciousness, there is a constitutive connection between phenomenal consciousness and subjectivity: there is something it is like for a subject to have mental state M only if M is characterized by a certain mine-ness or for-me-ness. Such theories appear to face certain psychopathological counterexamples: patients appear to report conscious experiences that lack this subjective element. A subsidiary goal of this chapter is to articulate with greater precision both subjectivity theories and the (...) psychopathological challenge they face. The chapter’s central goal is to present two new approaches to defending subjectivity theories in the face of this challenge. What distinguishes these two approaches is that they go to great lengths to interpret patients’ reports at face value – greater length, at any rate, than more widespread approaches in the extant literature. (shrink)