The development of quantum information theory has renewed interest in the idea that the state vector does not represent the state of a quantum system, but rather the knowledge or information that we may have on the system. I argue that this epistemic view of states appears to solve foundational problems of quantum mechanics only at the price of being essentially incomplete.

Quantum Bayesianism, or QBism, is a recent development of the epistemic view of quantum states, according to which the state vector represents knowledge about a quantum system, rather than the true state of the system. QBism explicitly adopts the subjective view of probability, wherein probability assignments express an agent’s personal degrees of belief about an event. QBists claim that most if not all conceptual problems of quantum mechanics vanish if we simply take a proper epistemic and probabilistic perspective. Although this (...) judgement is largely subjective and logically consistent, I explain why I do not share it. (shrink)

Everett’s relative states interpretation of quantum mechanics has met with problems related to probability, the preferred basis, and multiplicity. The third theme, I argue, is the most important one. It has led to developments of the original approach into many-worlds, many-minds, and decoherence-based approaches. The latter especially have been advocated in recent years, in an effort to understand multiplicity without resorting to what is often perceived as extravagant constructions. Drawing from and adding to arguments of others, I show that proponents (...) of decoherence-based approaches have not yet succeeded in making their ontology clear. (shrink)

Several arguments have been proposed some years ago, attempting to prove the impossibility of defining Lorentz-invariant elements of reality. I find that a sufficient condition for the existence of elements of reality, introduced in these proofs, seems to be used also as a necessary condition. I argue that Lorentz-invariant elements of reality can be defined but, as Vaidman pointed out, they won’t satisfy the so-called product rule. In so doing I obtain algebraic constraints on elements of reality associated with a (...) maximal set of commuting Hermitian operators. (shrink)

The transactional interpretation of quantum mechanics, following the time-symmetric formulation of electrodynamics, uses retarded and advanced solutions of the Schrödinger equation and its complex conjugate to understand quantum phenomena by means of transactions. A transaction occurs between an emitter and a specific absorber when the emitter has received advanced waves from all possible absorbers. Advanced causation always raises the specter of paradoxes, and it must be addressed carefully. In particular, different devices involving contingent absorbers or various types of interaction-free measurements (...) have been proposed as threatening the original version of the transactional interpretation. These proposals will be analyzed by examining in each case the configuration of absorbers and, in the special case of the so-called quantum liar experiment, by carefully following the development of retarded and advanced waves through the Mach-Zehnder interferometer. We will show that there is no need to resort to the hierarchy of transactions that some have proposed, and will argue that the transactional interpretation is consistent with the block-universe picture of time. (shrink)

In a recently proposed interpretation of quantum mechanics, U. Mohrhoff advocates original and thought-provoking views on space and time, the definition of macroscopic objects, and the meaning of probability statements. The interpretation also addresses a number of questions about factual events and the nature of reality. The purpose of this note is to examine several issues raised by Mohrhoff's interpretation, and to assess whether it helps providing solutions to the long-standing problems of quantum mechanics.

Tolman's paradox arises in Lorentz-invariant theories of superluminal particles. In this paper we first try to clarify the nature of the paradox and what it means to solve it. We then analyze the various attempts made to either solve or eliminate it. We show that general consequences can be drawn which hold in essentially all paradox-free schemes proposed so far.

Quel est ce schisme que Popper remarque dès les années cinquante et qui dure encore vingt-cinq ans plus tard? C’est le conflit entre les tenants de l’orthodoxie quantique ou, si l’on préfère, de l’interprétation de Copenhague et ceux qui s’y opposent. Ces derniers forment un groupe nettement moins homogène que les premiers, même si ceux-ci ont d’importantes divergences de vues, dont ils ne sont pas toujours conscients.

Le siècle qui s'achève est celui de la science et de la technologie. Et plus que tout autre sans doute, il a donné lieu à une importante réflexion philosophique sur la nature de la science, ses méthodes et ses prétentions à la vérité. La pratique scientifique, par ailleurs, est devenue hyperspécialisée et elle utilise souvent un langage incompréhensible aux non-initiés. Le livre de Daniel Parrochia tente d'abord de «contribuer à combler une partie de l'hiatus existant entre les hommes de ce (...) temps et la science dont ils sont les héritiers». Mais surtout, il essaiera de mesurer l'impact sur notre vision du monde des grandes révolutions scientifiques de ce siècle et «de reconstituer, si possible, à partir de là, une vision unitaire». (shrink)

Treating mathematical science as a distinct cultural entity subject to environmental factors which influence its evolution, the author examines the creation and development of its major concepts since early times.

A milestone in the development of post-war Marxist thought.

Empathy remains poorly understood, under-theorized, and subject to conflicting and opportunistic uses. Its systematic role in human experience has not been analyzed and interpreted from top to bottom. In this book, the author attempts to provide such an analysis in the philosophical traditions of hermeneutics, phenomenology, analytic philosophy of language, and psychoanalysis. applying his interpretation of empathy to the philosophical issues of intentionality, the emotions, and the checkered transformations of empathy itself. In doing so the author aims to rescue empathy (...) from the margins of intelligibility and reveal its central role in our understanding of the emotions, the integrity of our relations with others, and human community (“intersubjectivity”). -/- The work draws on both the Anglo-American (“analytic”) tradition of ordinary language philosophy and the continental ones of phenomenology and hermeneutics. This work follows the movement of empathy from the periphery of ethics, aesthetics, and theory of mind to a key place in establishing and maintaining the integrity and emotional equilibrium of dynamic interrelations with other individuals. Beginning with the philosophical infrastructure of the hermeneutics of empathy, this work thoroughly explains the complex architecture of empathy, tracing it downward through the levels of authentic human interrelations, empathy with unexpressed emotions, the empathic penetrability of cognitively impenetrable affect, the first-ever intentional analysis of both the empathizer and the “empathasand” in interrelation, and the hermeneutic infrastructure. The consequences of empathy are exposed in the context of the emotions, cognitive impenetrability, empathy and altruism, and the intentionality of empathy as accessed through language and story telling. Drawing on the multi-method approach of hermeneutics, phenomenology, and story telling, this work demonstrates that empathy forms the foundation for community in ways not clearly appreciated in the on-going debate. In a bootstrap operation that is guided by Heidegger’s call for a “special hermeneutic of empathy,” this work achieves a delicate balancing act of unpacking the rich intellectual traditions from which empathy - the phenomenon itself, not the concept - emerged historically. The result is an exposure of the deep structure of empathy as a fundamentally human capability for creating possibilities of community and human relations. (shrink)

The U.S. and Canadian health care systems are more similar than is commonly believed. This article debunks some of the powerful myths about these health care systems and opens up the discussion for greater policy learning from both sides of the border. Cross-border comparisons can yield a number of lessons from common policy challenges such as cost control, physician organization and payment, and the organization of health coverage and services for Native Americans and Indigenous Canadians.

"Based on the true life experiences of a recovering corporate executive, award-winning journalist, yogi, wife, mother and survivor of fifty years of life.".

Si le déploiement d’une compétence éthique en situation nécessite la capacité et la volonté de la personne à déceler et à résoudre les problèmes de nature éthique qu’il rencontre, je proposerai dans ce texte qu’il nécessite aussi, en raison de la part d’autonomie qu’il requiert, que la personne ait le pouvoir de déployer cette compétence. Or, alors que les deux premières conditions d’exercice dépendent de la personne, cette troisième condition, à laquelle je m’intéresserai plus particulièrement dans ce texte, lui est (...) pour sa part externe. Ainsi, je proposerai que c’est non seulement la personne, mais aussi un enchevêtrement d’éléments du contexte, de la situation et surtout, du réseau d’interactions dans lesquels une personne s’insère qui, parce qu’ils exercent sur elle des pouvoirs, détermineront si la personne aura la possibilité d’agir de façon compétente en situation éthique. Ainsi, s’intéresser à la compétence éthique impliquera nécessairement de s’intéresser à la question du pouvoir et à la façon dont s’exerceront les pouvoirs en situation – des pouvoirs sur ou des pouvoirs avec – puisque cela aura une influence déterminante sur le pouvoir de la personne de déployer sa compétence de façon effective en situation. (shrink)

La succession récente de crises économiques et financières constitue le symptôme le plus évident des dysfonctionnements du système économique. De nouvelles approches comme la responsabilité sociale des entreprises et la finance socialement responsable proposent d’humaniser le capitalisme et de reconfigurer l’économie de marché. Ces deux courants de pensée ont d’ailleurs contribué à opérer un important changement dans l’imaginaire social quant à la façon de concevoir la légitimité des activités économiques. Malgré leur grand inté­rêt, ces nouvelles approches comportent des limites relativement (...) à leur effica­cité et leur capacité de remédier aux dysfonctionnements reconnus. C’est pour­quoi nous souhaitons examiner ces deux approches et envisager la discussion des questions éthiques dans une perspective plus large. Nous le ferons en affirmant que le dilemme éthique de l’économie se pose assez simplement dans les termes suivants : moraliser l’économie de l’intérieur ou reformuler la question éthique à l’extérieur du discours économique, notamment par la voie politique et démocra­tique. Dans le premier cas de figure, c’est l’effectivité des approches normatives comme la RSE et la FSR qui doit être examinée. Dans le second cas de figure, c’est la place de l’éthique dans le discours social et sa relation avec l’économie qui doit être discutée. Nous discuterons donc ces deux cas de figure et proposerons de reformuler la question éthique à l’extérieur de la sphère économique en utilisant l’éthique comme cadre d’analyse transversale et matrice des choix sociopolitiques. (shrink)

The need for quantitative measurement represents a unifying bond that links all the physical, biological, and social sciences. Measurements of such disparate phenomena as subatomic masses, uncertainty, information, and human values share common features whose explication is central to the achievement of foundational work in any particular mathematical science as well as for the development of a coherent philosophy of science. This book presents a theory of measurement, one that is "abstract" in that it is concerned with highly general axiomatizations (...) of empirical and qualitative settings and how these can be represented quantitatively. It was inspired by, and represents a generalization and extension of, the last major research work in this field, Foundations of Measurement Vol. I, by Krantz, Luce, Suppes, and Tversky published in 1971. (shrink)

The method of supervaluations offers an elegant procedure by which semantic theory can come to terms with sentences that, for one reason or another, lack truth-value. I argue, however, that this method rests on a fundamental mistake, and so is unsuitable for semantics. The method of supervaluations, I argue, assigns semantic values to sentences based not on the semantic values of their components, but on the values of other, perhaps homophonic, but nevertheless distinct, expressions. That is because supervaluations are generated (...) from classical valuations which necessarily require reinterpreting the component expressions, but the reinterpretation of an expression is tantamount to the introduction of a new expression, or alternatively, to a shift to an entirely new language. To confuse the expression of the language for which a semantic theory is developed with its reinterpreted counterpart, is to commit a fallacy of equivocation. That is the flaw within the method of supervaluations. We see it manifest in a number of examples. (shrink)

Reply to John Lewis: Note on "The critique of the personality cult". Remark on the category "Process without a subject or goal(s)"--Elements of self-criticism: On the evolution of the young Marx.--Is it simple to be a Marxist in philosophy? "Something new".

No figure among the western Marxist theoreticians has loomed larger in the postwar period than Louis Althusser. A rebel against the Catholic tradition in which he was raised, Althusser studied philosophy and later joined both the faculty of the Ecole normal superieure and the French Communist Party in 1948. Viewed as a "structuralist Marxist," Althusser was as much admired for his independence of intellect as he was for his rigorous defense of Marx. The latter was best illustrated in For (...) Marx (1965), and Reading Capital (1968). These works, along with Lenin and Philosophy (1971) had an enormous influence on the New Left of the 1960s and continues to influence modern Marxist scholarship. This classic work, which to date has sold more than 30,000 copies, covers the range of Louis Althusser's interests and contributions in philosophy, economics, psychology, aesthetics, and political science. Marx, in Althusser's view, was subject in his earlier writings to the ruling ideology of his day. Thus for Althusser, the interpretation of Marx involves a repudiation of all efforts to draw from Marx's early writings a view of Marx as a "humanist" and "historicist." Lenin and Philosophy also contains Althusser's essay on Lenin's study of Hegel; a major essay on the state, "Ideology and Ideological State Apparatuses," "Freud and Lacan: A letter on Art in Reply to Andre Daspre," and "Cremonini, Painter of the Abstract." The book opens with a 1968 interview in which Althusser discusses his personal, political, and intellectual history. (shrink)

Madness and Modernism provides a phenomenological study of schizophrenic disorders, criticizing some standard conceptions of these disorders. Sass argues that many aspects of this group of disorders can actually involve more sophisticated (albeit dysfunctional) forms of mind and experience.

In recent years, there has been much focus on the apparent heterogeneity of schizophrenic symptoms. By contrast, this article proposes a unifying account emphasizing basic abnormalities of consciousness that underlie and also antecede a disparate assortment of signs and symptoms. Schizophrenia, we argue, is fundamentally a self-disorder or ipseity disturbance that is characterized by complementary distortions of the act of awareness: hyperreflexivity and diminished self-affection. Hyperreflexivity refers to forms of exaggerated self-consciousness in which aspects of oneself are experienced as akin (...) to external objects. Diminished self-affection or self-presence refers to a weakened sense of existing as a vital and self-coinciding source of awareness and action. This article integrates recent psychiatric research and European phenomenological psychiatry with some current work in cognitive science and phenomenological philosophy. After introducing the phenomenological approach along with a theoretical account of normal consciousness and self-awareness, we turn to a variety of schizophrenic syndromes. We examine positive, then negative, and finally disorganization symptoms—attempting in each case to illuminate shared distortions of consciousness and the sense of self. We conclude by discussing the possible relevance of this approach for identifying early schizophrenic symptoms. (shrink)

Utilitarianism is one of the most famous ethical doctrines, based on the ideal of maximizing pleasure and minimizing pain. But Utilitarians and their opponents lack a clear scientific and philosophical understanding of its foundations, the measurement and aggregation of utility. This is what The Pursuit of Happiness now offers.