Currently, the widely used notion of activity is increasingly present in computer science. However, because this notion is used in specific contexts, it becomes vague. Here, the notion of activity is scrutinized in various contexts and, accordingly, put in perspective. It is discussed through four scientific disciplines: computer science, biology, economics, and epistemology. The definition of activity usually used in simulation is extended to new qualitative and quantitative definitions. In computer science, biology and economics disciplines, the new simulation activity definition (...) is first applied critically. Then, activity is discussed generally. In epistemology, activity is discussed, in a prospective way, as a possible framework in models of human beliefs and knowledge. (shrink)

Este livro é o resultado de três anos de debates entre estudiosos interessados em entender o modo como diferentes dimensões da vida podem ser lidas sob a perspectiva da moral. Afinal, embora este tenha sido sempre um tema importante para a sociologia e a antropologia, raros têm sido os esforços brasileiros para a realização de pesquisas empíricas nessa área. Considerando essa lacuna, os autores dos 22 ensaios que fazem parte de Pensando bem se concentram na discussão prática da moral tomada (...) do nosso cotidiano, privilegiando formas de ultrapassar a dicotomia entre abordagens preocupadas com o correto ou justo, de um lado, e aquelas preocupadas com o bom, de outro. (shrink)

The paper covers the origins, development, perspectives and solutions of the civilizational catastrophe of humanity. Humanity is defined as the restricted number of ideal, material, and temporal qualities of human beings. Its civilizational catastrophe is the contingent evolution of the specific element of human consciousness implementing rationality and technique, knowing no limits and no purposes, progressing outside ideal, material, and temporal boundaries of humanity, overcoming on its way limitations of human savagery and transcendental elements. Due to the particular quality of (...) civilizational development, the law of humanity catastrophe could be stated, as the stage of civilization is inversely proportional to the level of humanity in human beings. Civilization catastrophe couldfinalize into other-being or non-being of humanity. Its evolution canalizes into different fields of activity, which are named categories of humanity civilization catastrophe, because each of them leads towards cardinal qualitative changes of humanity or its annihilation. The basic categories are elimination – civilized ability of humans to kill one another, speedization – permanent acceleration of the overhuman speed of civilizational processes; babylonization – the cobeingof different collective qualitative realizations; supermanization – scientific production of over-human being; transsexualization – the negation of sexual immobility of humanity; ballastization – the overproduction of information; ritualizatin – the murder of simple love activity in Jesus manner into ecclesiastic discourse. The onlysalvation of humanity is the total negation of civilization and selftransformation of humankind on the basis of its transcendental element which is love knowing no exceptions. (shrink)

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)

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)

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,"  ...

Too many somersaults -- The strange creature that I am -- Giving meaning to reality -- The sincerity of true kindness -- Embracing our condition -- Drawing strength from our weakness -- Pity anesthetizes -- The other's gaze -- The joy of being alive -- They talked and analyzed -- Culture shock -- Conditional happiness -- A man of God -- A craving for learning -- Genuine friends -- Marginal.

(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.

L'épistocratie est un idéal de gouvernement au sein duquel le pouvoir est confié aux savants, même s'il n'est pas formellement reconnu dans la typologie classique des régimes constitutionnels. Il existe pourtant, depuis longtemps, en amont des décisions politiques, de nombreux comités d'experts qui livrent leur éclairage dans de multiples domaines qu'ils soient juridique, économique ou climatologique. La crise mondiale liée à l'épidémie de Covid-19, pendant laquelle les experts du monde médical ont été mobilisés par les gouvernants, a jeté une lumière (...) crue sur cette association entre le pouvoir et la science. Au-delà de cet exemple, l'ouvrage revient sur les analyses de Max Weber qui préconisait, dans ses conférences munichoises de 1917 et 1919, l'étanche séparation entre le savant et le politique. Il analyse les bénéfices attendus et les risques potentiels, pour la démocratie, de leur étroit rapprochement. (shrink)

Alexandre Koj_ve offers a systematic discussion of key themes such as right, justice, law, equality, and autonomy in which he presages our contemporary world of economic globalization and international law. Edited and translated by Bryan-Paul Frost, this is the authoritative English language edition of a monumental work in political philosophy.

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)

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)

L’idée d’articuler la phénoménologie et le marxisme peut sembler aujourd’hui quelque peu dépassée, comme elle a pu autrefois apparaître contingente et artificielle. Pourtant, la récurrence et l’insistance avec laquelle, depuis près d’un siècle, ce projet a été réactivé sont peut-être le signe d’une affinité insoupçonnée entre ces deux courants de pensée. Si Husserl n’a pas accordé d’intérêt particulier au marxisme et si Heidegger ne l’a fait qu’assez tardivement, certains de leurs élèves et m...

Cet article examine la place qu’occupent les réflexions sur la Planétarité en les situant par rapport à deux autres attracteurs, le Terrestre et le Global. Un certain nombre de positions idéologiques contemporaines sont ainsi comparées en fonction de leur situation vis-à-vis de ces trois opérateurs. L’élément central permettant de les distinguer n’est autre que leur rapport aux techniques. Nous proposons de dépasser la difficulté à politiser les enjeux techniques et planétaires en ayant recours au concept de communs négatifs.

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).

Norbert Elias has notably influenced the historiography of the Early Modern Period since the 1970s. In the course of the borrowing of his concepts by different disciplines, the uniqueness of these concepts was nevertheless altered. This article aims to show that Elias' 'Sociology of configurations' proposed an original point of view on Longue Durée in history. It thus suggests: 1) to re-evaluate the historical dimension of Elias' sociology; 2) to question eventual contributions to present-day research to the history of medicine (...) and health. (shrink)

Remise en cause de la théorie d’Einstein, de celle de Darwin, créationnisme et fondamentalismes, cosmologies païennes, mouvements technofascistes, idéologies radicales anti-science… Pourquoi des personnes formées à la science en viennent-elles à adopter une attitude en opposition virulente à la science de leur époque? Comment mobilisent-elles leur capacité de raisonnement au service de dogmes et d’idéologies sans rapport avec la science? Peut-on tirer un fil historique entre ces postures depuis la naissance de la science moderne au XVIe siècle? De nos jours, (...) quel est l’impact sur les rapports entre science et société de ces attitudes, diffusées et multipliées par le canal de l’Internet? Rejet de la science contemporaine, de la spécialisation et de l’abstraction mathématique ; appel au bon sens et à une science globale ; vitupération pouvant aller jusqu’à l’invocation de la théorie du complot ; instrumentalisation de la science à des fins idéologiques ou religieuses : voilà les principales caractéristiques des mouvements ou des individus étudiés dans cet ouvrage. Alexandre Moatti, ingénieur en chef des Mines, est chercheur associé en histoire des sciences et des idées à l’université Paris-VII-Denis-Diderot. Il est notamment l’auteur deEinstein, un siècle contre lui (2007). (shrink)

" 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)

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)

One objection to enhancement technologies is that they might lead us to live inauthentic lives. Memory modification technologies (MMTs) raise this worry in a particularly acute manner. In this paper I describe four scenarios where the use of MMTs might be said to lead to an inauthentic life. I then undertake to justify that judgment. I review the main existing accounts of authenticity, and present my own version of what I call a “true self” account (intended as a complement, rather (...) than a substitute, to existing accounts). I briefly describe current and prospective MMTs, distinguishing between memory enhancement and memory editing . Moving then to an assessment of the initial scenarios in the light of the accounts previously described, I argue that memory enhancement does not, by its very nature, raise serious concerns about authenticity. The main threat to authenticity posed by MMTs comes, I suggest, from memory editing. Rejecting as inadequate the worries about identity raised by the President’s Council on Bioethics in Beyond Therapy , I argue instead that memory editing can cause us to live an inauthentic life in two main ways: first, by threatening its truthfulness, and secondly, by interfering with our disposition to respond in certain ways to some past events, when we have reasons to respond in such ways. This consideration allows us to justify the charge of inauthenticity in cases where existing accounts fail. It also gives us a significant moral reason not to use MMTs in ways that would lead to such an outcome. (shrink)

In seventeenth-century Germany art and reality stood in a contradictory relationship to one another, and this contradiction was a fruitful one: it contained, in an undeveloped and indistinct form, the paths that art was to take in the centuries that followed. From the point of view of the history of culture, it is important to feel the basic contradiction of this period, the pledge of the developments of the future, even though the period itself perhaps suffered from this contradiction. We (...) ourselves will be helped in this direction—that is, towards the elucidation of the central contradiction of seventeenth-century art—by a few isolated comments and observations on the literary texts of the time. (shrink)

Nosso objetivo é discutir as condições e implicações do deslocamento realizado por Althusser entre a definção da filosofia como “teoria da prática teórica” e a definição da filosofia como luta e tomada de posição sobre o vazio. Levantamos a hipótese sobre se seria adequado aplicar à obra de althusser o conceito de ruptura ou corte epistemológico, o que nos permitiria compreender a passagem do materialismo dialético ao materialismo dos encontros ou aleatório como “revolução teórica” do próprio Althusser.

A Educação Continuada de professores é reconhecida como indispensável e fundamental para a qualificação dos processos de ensino e aprendizagem. Para tanto, neste estudo, levaremos em consideração alguns aspectos dessa temática. Em primeiro lugar, precisamos ter conhecimento das diretrizes que tratam da Educação Continuada de professores, ou seja, compreender de onde viemos e qual é a proposta das legislações nacional e internacional. Em segundo lugar, explanaremos e discutiremos conceitos teóricos que tratam da temática, em especial a visão de Gert Biesta, (...) o importante filósofo da educação. Finalmente, com base nos dois itens citados, entrelaçaremos considerações e indagações para uma Educação Continuada que possa fazer diferença no cotidiano dos professores. Portanto, o principal foco desta pesquisa é analisar, criticamente, essa educação dos professores, à luz das concepções propostas por Gert Biesta. Palavras-chave: Educação Continuada. Professores. Diálogo. Gert Biesta. (shrink)

Demeuré longtemps dans l'ombre de Hegel dont il est le contemporain, Arthur Schopenhauer ne bénéficiera que d'une gloire posthume et influencera, à la fin du XlXème siècle, des penseurs importants à l'instar de Nietzsche ou Freud. Son apport majeur, qui est loin d'être dérisoire, est d'avoir renversé la perspective à partir de laquelle la philosophie occidentale pensait jusqu'à présent l'individu. Considéré comme un être libre et doué de raison, voici que l'homme est regardé, avec Schopenhauer, comme l'otage de la Volonté, (...) concept derrière lequel le philosophe allemand range notamment les passions et les émotions. En définissant la souffrance comme constitutive de l'essence de la vie et en affirmant la thèse révolutionnaire de l'assujettissement des fonctions intellectuelles aux fonctions affectives, Schopenhauer nous livre une vision irrationaliste du monde dont cet ouvrage tire parti pour revisiter la pensée juridique moderne. Le présent essai propose de voir dans le désenchantement éthique et moral qui caractérise le libéralisme politique et le positivisme juridique l'ombre portée du pessimisme schopenhauérien. (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)

The evolution of wireless communications, from the first to the fifth generation, has driven Internet of Things (IoT) advancements. IoT is transforming sectors like agriculture, healthcare, and transportation, but also presents challenges like spectrum bandwidth demand, speed requirements, and security issues. IoT environments, with embedded sensors and actuators, connect to other devices to transmit and receive data over the internet. These data are processed locally or in the cloud, enabling decision-making and automation. Various wireless technologies, including Bluetooth, Zigbee, LoRa, and (...) WiFi, cater to specific IoT applications. 5G, with its high speeds, low latency, and efficient bandwidth sharing, is ideal for high-speed data transmission, and thus it provides robust infrastructure for low-latency and bandwidth-sensitive applications. This latest mobile network technology is being rapidly implemented worldwide, providing unprecedented throughput and low latency, which are crucial for the IoT. This paper presents a comprehensive systematic review on 5G security features, vulnerabilities, threats to mobile devices, security in IoT devices, common attacks to IoT devices and protection of data in this environment. Despite enhanced security, 5G faces challenges like Distributed Denial of Service (DDoS), Man In The Middle (MITM), cross-slice disruptions, and side-channel attacks. (shrink)

Policies to combat climate change should be supported by evidence regarding their effectiveness. But what kind of evidence is that? And what tools should one use to gather such evidence? Many argue that randomized controlled trials are the gold standard when it comes to evaluating the effects of policies. As a result, there has been a push for climate change policies to be evaluated using RCTs. We argue that this push is misguided. After explaining why RCTs are thought to be (...) the gold standard, we use examples of mitigation and adaptation policies to show that RCTs provide, at best, one piece of the evidential puzzle one needs to assemble for well-supported decisions regarding climate change policies. (shrink)

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)

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)

Resenha de BAEHR, J. (Ed.). Intellectual Virtues and Education: Essays in Applied Virtue Epistemology. New York: Routledge, 2017. 272p, por Alexandre Ziani Review of BAEHR, J. (Ed.). Intellectual Virtues and Education: Essays in Applied Virtue Epistemology. New York: Routledge, 2017. 272p, by Alexandre Ziani.

Qu'est-ce que parler du diable ? Psychologues, sociologues, écrivains ou philosophes se sont emparés de la question et y répondent diverse­ment. Mais plus précisément, que peut et doit dire la théologie scientifi­que dont la compétence se rapporte à une interprétation de la tradition biblique en tant que source et fondement d'énoncés dogmatiques, y compris ceux du Magistère ecclésiastique ? Après avoir examiné les écrits bibliques, et plus largement ceux du Nouveau Testament, après avoir interrogé l'enseignement dogmatique de l'Église qui, en (...) comparaison, reste pauvre, A. Ganoczy dégage quelques grandes lignes de la recherche théologique en cours, précisant au passage les conditions pour rendre plausible une métaphore qui n'est pas un moyen de connaissance néces­sairement déficitaire. Car la métaphore « diable » rend compte d'un mystère pour la foi.What does it mean to speak of the devil ? Psychologists, sociologists, writers and philosophers have taken up the question and answered in different ways. But more precisely, what can and should scientific theology say ? Its competence is related to an interpretation of biblical tradition as a source and foundation for dogmatic statements, including those of the Church's Magisterium. After examining biblical writings, and in a larger sense those of the New Testament, and after questioning the dogmatic teaching of the Church, which, in comparison remains scanty, A. Ganoczy sorts out some important areas of present theological research. In passing he specfies the conditions that render plausible a metaphor that is not necessarily deficient as a means of knowledge. For the metaphor « devil » takes into account a mystery for the faith. (shrink)

This study focuses on comparison of perceptions of ethical business cultures in large business organizations from four largest emerging economies, commonly referred to as the BRICs (Brazil, Russia, India, and China), and from the US. The data were collected from more than 13,000 managers and employees of business organizations in five countries. The study found significant differences among BRIC countries, with respondents from India and Brazil providing more favorable assessments of ethical cultures of their organizations than respondents from China and (...) Russia. Overall, highest mean scores were provided by respondents from India, the US, and Brazil. There were significant similarities in ratings between the US and Brazil. (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)

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)