Cet article propose une vue d’ensemble de la doctrine des Intermédiaires mathématiques (τὰ μεταξύ) qu’Aristote attribue à Platon dans sa Métaphysique, des objections qu’Aristote lui adresse et des questions philosophiques qu’elle soulève. Suivant Aristote, Platon avance que les vérités de la géométrie et de l’arithmétique ne peuvent pas porter sur des objets perceptibles ni sur des Formes, mais doivent porter sur une troisième classe d’entités intermédiaires entre les deux. Je soutiens que la critique d’Aristote la plus efficace de cette doctrine (...) montre que les raisons avancées en faveur de l’existence des Intermédiaires par les Platoniciens ne sont pas concluantes, mais ne peut pas montrer qu’ils n’existent pas. En m’appuyant sur quelques remarques de David Ross sur la démarche d’Aristote, je soutiens également que, s’il est vrai que le fait que toute science est caractérisée par des propositions de la forme « Tout F est G » n’implique pas qu’elle porte sur des entités intermédiaires, il peut y avoir des raisons pour accepter leur existence eu égard à une science mathématique en particulier, à savoir la géométrie. (shrink)

This is the first dedicated commentary to Sextus Empiricus’ treatise _Against the Arithmeticians_, dealing with crucial issues in the history of the sceptical, Platonic and Pythagorean traditions and in the ancient philosophy of mathematics.

Arithmetic deals with numbers: but what is the nature of their existence, of their parts, and of their relationship with countable items? These questions nourished a lively debate between the Platonico-Pythagorean tradition (trying to answer them) and the Pyrrhonian tradition (trying to show that these answers were unsatisfactory). The debate lies at the heart of Sextus Empiricus' Against the Arithmeticians. The present book aims at facing the remarkable historical and philosophical questions raised by Sextus' treatise by offering a new translation (...) of it and the first dedicated commentary to it. (shrink)

From religion to philosophy to science, all human systems of definition are formed by human brains. The nature and limits of the human brain are the nature and limits of those systems. This essay shows how the human brain works normally then unusually, and what this reveals about the limits of human knowledge. There are many conditions and instances where the brain processes information unusually, including mental disorders, physical events, and drug use. This essay focuses on the neurological events called (...) mystical experiences. (shrink)

This short peer-reviewed text is a concise look at the psychology of how human beings make decisions, including how they form their worldviews and make arguments.

This paper aims to provide two abductive considerations adducing in favor of the thesis of Necessitism in modal ontology. I demonstrate how instances of the Barcan formula can be witnessed, when the modal operators are interpreted 'naturally' -- i.e., as including geometric possibilities -- and the quantifiers in the formula range over a domain of natural, or concrete, entities and their contingently non-concrete analogues. I argue that, because there are considerations within physics and metaphysical inquiry which corroborate modal relationalist claims (...) concerning the possible geometric structures of spacetime, and dispositional properties are actual possible entities, the condition of being grounded in the concrete is consistent with the Barcan formula; and thus -- in the geometric setting -- merits adoption by the Necessitist. (shrink)

This paper investigates Hegel’s account of the animal organism as it is presented in the Philosophy of Nature, with a special focus on its normative implications. I argue that the notion of “organisation” is fundamental to Hegel’s theory of animal normativity. The paper starts by showing how a Hegelian approach takes up the scientific image of organism and assigns a basic explanatory role to the notion of “organisation” in its understanding living beings. Moving from this premise, the paper turns to (...) the group of accounts in contemporary theoretical biology known as “organisational accounts”, which offer a widely debated strategy for naturalizing teleology and normativity in organisms. As recent scholarship recognizes, these accounts explicitly rely on insights from Kant and Post-Kantianism. I make the historical and conceptual argument that Hegel’s view of the organism shares several basic commitments with OAs, especially regarding the notion of “organisational closure”. I assess the account of normativity that such accounts advance and its implications for how we approach Hegel. Finally, I argue that the notion of “organisation” is more fundamental to Hegel’s theory of animal normativity than the Aristotelian notion of “Gattung” or “species”, which by contrast appears derivative – at least in the Philosophy of Nature and the Lectures – and does not play the central role in his account maintained by some scholars. (shrink)

Part of the appeal of the biological approach to personal identity is that it does not have to countenance spatially coincident entities. But if the termination thesis is correct and the organism ceases to exist at death, then it appears that the corpse is a dead body that earlier was a living body and distinct from but spatially coincident with the organism. If the organism is identified with the body, then the unwelcome spatial coincidence could perhaps be avoided. It is (...) argued that such an identification would be a mistake. A living organism has a different part/whole relationship and persistence conditions than the alleged body. A case will be made that the concept ‘human body’ is a conceptual mess, vague in an unprincipled manner, and that an eliminativist stance towards dead bodies is the appropriate response. CiteULike Connotea Del.icio.us What's this? (shrink)

This article investigates Hegel's later theory of perception and cognition, identifying and analysing its general assumptions about the relation among the mind's activities. These often unremarked upon assumptions, I claim, continue to underwrite recent interpretive controversies. I demonstrate how a correct understanding of such assumptions points us toward an alternative interpretation of Hegel's model of the mind. I argue that this new model changes how we understand (a) Hegel's later notion of ‘non-conceptual content’ and (b) his distinction between human and (...) animal minds—two areas that constitute the fault line dividing interpretations of late Hegel. To isolate the relevant assumptions, I use Matthew Boyle's influential conceptual distinction between ‘additive’ and ‘transformative’ models of rationality. I demonstrate that Hegel himself addresses the basic issues characterizing this distinction and clarify how approaching his work in these terms presents considerable interpretative and conceptual advantages, including allowing us to defend the position that Hegel adopts a ‘transformative’ framework of mind. To support this argument, this paper closely analyses Hegel's treatment of sensation (Empfindung), which has not yet been systematically addressed by scholars. I show how sensation can be best understood as part of Hegel's later ‘transformative’ framework for cognition. I also show how this framework can be extended to other parts of Hegel's theory. (shrink)

It has been argued that non-relativistic quantum mechanics is the best hunting ground for genuine examples of metaphysical indeterminacy. Approaches to metaphysical indeterminacy can be divided into two families: meta-level and object-level accounts. It has been shown :27–245, 2010. https://doi.org/10.1080/00048400903097786; Skow in Philosophical Quarterly 60:851–858, 2010) that the most popular version of the meta-level accounts, namely the metaphysical supervaluationism proposed by Barnes and Williams, fails to deal with quantum indeterminacy. Such a fact has been taken by many as a challenge (...) to adapt supervaluationism to quantum cases. In this paper, I will focus on the very last of these attempts, i.e. the situation semantics account proposed by Darby and Pickup. After having shown where quantum indeterminacy arises and having surveyed the assumptions endorsed by the participants of the debate, I turn to Darby and Pickup’s proposal. I argue that, despite the machinery introduced, their account still fails to account for quantum indeterminacy. After considering some possible counterarguments, I suggest in the conclusion that one can plausibly extend the argument to those meta-level approaches that treat quantum indeterminacy as worldly indecision. (shrink)

Oxford Philosophical Texts Series Editor: John Cottingham The Oxford Philosophical Texts series consists of authoritative teaching editions of canonical texts in the history of philosophy from the ancient world down to modern times. Each volume provides a clear, well laid out text together with a comprehensive introduction by a leading specialist, giving the student detailed critical guidance on the intellectual context of the work and the structure and philosophical importance of the main arguments. Endnotes are supplied which provide further commentary (...) on the arguments and explain unfamiliar references and terminology, and a full bibliography and index are also included. The series aims to build up a definitive corpus of key texts in the Western philosophical tradition, which will form a reliable and enduring resource for students and teachers alike. David Hume's aim in writing An Enquiry concerning Human Understanding was to introduce his philosophy to a European culture in which many educated people read original works of philosophy. He gives an elegant and accessible presentation of strikingly original and challenging views about the limited powers of human understanding, the attractions of scepticism, the compatibility of free will and determinism, and weaknesses in the foundations of religion. Hume's philosophy was highly controversial in the eighteenth century and remains so today. The text printed in this edition is that of the Clarendon critical edition of Hume's works. A substantial introduction by the editor explains the intellectual background to the work and surveys its main themes. The volume also includes detailed explanatory notes on the text, a glossary of terms, a full list of references, and a section of supplementary readings. (shrink)

In recent years, so-called organizational accounts (OA) have emerged in theoretical biology as a powerful, viable strategy for naturalizing teleology and normativity. In the wake of the theoretical tradition of autopoiesis and biological autonomy, OA notably propose a new meaning for the notion of “organization,” which they claim to be capable, among other things, of grounding objective and observer-independent normative teleological ascriptions. In this paper, I focus on this last claim, asking “How are ‘organization’ and ‘normativity’ conceptually connected?” The basic (...) insight mobilized by the OA framework to answer this question is most often expressed as a counterfactual argument regarding the “conditions of existence” of organized entities. In this paper, I show that careful scrutiny of this core OA argument reveals a substantial shortcoming. To make this point, I first analyze how the OA framework positions the idea of “conditions of existence” via the notions of “dependence”, “constraint,” and “closure.” Second, I consider various possible interpretations of the OA counterfactual argument grounding norms. I conclude that the implications of this argument do not enable OA to deliver what they promise, i.e., a straightforward link between organization and norms. I argue that a different strategy is needed to capture the basic organizational intuition about biological normativitiy and suggest that a stipulative route might be better suitable to that end. (shrink)

As a continuation of the work of the third author in [5], we make further observations on the features of Galois cohomology in the general model theoretic context. We make explicit the connection between forms of definable groups and first cohomology sets with coefficients in a suitable automorphism group. We then use a method of twisting cohomology (inspired by Serre’s algebraic twisting) to describe arbitrary fibres in cohomology sequences—yielding a useful “finiteness” result on cohomology sets. Applied to the special case (...) of differential fields and Kolchin’s constrained cohomology, we complete results from [3] by proving that the first constrained cohomology set of a differential algebraic group over a bounded, differentially large, field is countable. (shrink)

A common assumption in non-relativistic quantum mechanics is that self-adjoint operators mathematically represent properties of quantum systems. Focusing on spin, we argue that a natural view considers observables as determinable properties and their eigenvalues as their corresponding determinates. We provide a taxonomy of the different views that one can hold, once it is accepted that spin can be modelled with the determinable-determinate relation. In particular, we present the two main families of views, dubbed Spin Monism and Pluralism, and we show (...) that the current literature does not take a stance between the two. Then we put forward two arguments in favour of the former. Finally, we present a new account of Spin Monism, that is absent in current literature; such a view is worth discussing, or so we contend, because several compelling considerations support it, and it opens new ways of thinking about the ontology of quantum mechanics. (shrink)

European Journal of Philosophy, EarlyView.

This paper reconstructs and defends a Sellarsian approach to “sensation” that allows us to avoid mythological conceptions of it. Part I reconstructs and isolates Sellars’s argument for “sensation,” situating his adverbial interpretation of the notion within his broader theory of perception. Part II positions Sellars’s views vis-à-vis current conversations on adverbalism. In particular, it focuses on the Many Property Problem, which is traditionally considered the main obstacle to adverbialism. After reconstructing Sellars’s response to this problem, I demonstrate that his position (...) is compatible with some current strategies to solving it and can be developed along similar lines. Finally, part III addresses how a Sellarsian adverbial approach productively accounts for the phenomenal properties of experience often understood to fall under the notion of “sensation”. The paper therefore shows how isolating Sellars’s argument can yield a non-problematic conception of sensation. Indeed, the argument on which I focus offers a form of direct realism compatible with recent forms of “new adverbialism”. Although my view remains Sellarsian, to defend it I maintain that some Sellarsian claims about sensation should be resisted as not logically entailed by his argument. (shrink)

We use speech shadowing to create situations wherein people converse in person with a human whose words are determined by a conversational agent computer program. Speech shadowing involves a person (the shadower) repeating vocal stimuli originating from a separate communication source in real-time. Humans shadowing for conversational agent sources (e.g., chat bots) become hybrid agents ("echoborgs") capable of face-to-face interlocution. We report three studies that investigated people’s experiences interacting with echoborgs and the extent to which echoborgs pass as autonomous humans. (...) First, participants in a Turing Test spoke with a chat bot via either a text interface or an echoborg. Human shadowing did not improve the chat bot’s chance of passing but did increase interrogators’ ratings of how human-like the chat bot seemed. In our second study, participants had to decide whether their interlocutor produced words generated by a chat bot or simply pretended to be one. Compared to those who engaged a text interface, participants who engaged an echoborg were more likely to perceive their interlocutor as pretending to be a chat bot. In our third study, participants were naïve to the fact that their interlocutor produced words generated by a chat bot. Unlike those who engaged a text interface, the vast majority of participants who engaged an echoborg neither sensed nor suspected a robotic interaction. These findings have implications for android science, the Turing Test paradigm, and human-computer interaction. The human body, as the delivery mechanism of communication, fundamentally alters the social psychological dynamics of interactions with machine intelligence. (shrink)

This new critical guide to Hegel’s Philosophy of Spirit aims to orient readers in the text as well as to “present and assess the state of art in understanding and evaluating” it. This is no easy task. One reason why is the multiple meanings Geist takes on in the text and the variety of topics Hegel addresses, which range from embodiment to the unconscious, from cognitive psychology to bodily expressions, from race, madness, and habit to practical philosophy. Indeed, for Hegel (...) morality, the state, art, religion, and philosophy all belong to the spiritual domain, and this makes the Philosophy of Spirit, as Hegel himself acknowledges, “the sublimest and most difficult” part of his system (Encyclopedia of the... (shrink)

This paper explores Sellars’ and Hegel’s treatment of ‘sensation’ – a notion that plays a central role in the reflections of both authors but which has garnered little scholarly attention. To disentangle the issues surrounding the notion and elaborate its role, function, and fate in their thought, I begin with a methodological question: what kind of philosophical argument leads Sellars and Hegel to introduce the concept of ‘sensation’ into their systems? Distinguishing between their two argumentative approaches, I maintain that Hegel (...) offers what I broadly label a ‘transcendental’ argument for ‘sensation,’ which he presents in the Philosophy of Subjective Spirit and in the corresponding Lectures, whereas Sellars introduces the notion of sensation for what I term empirically ‘explanatory’ reasons. Next, I closely analyze Hegel’s and Sellars’ theories of sensation to produce a textually supported and conceptually coherent reading of their views on the notion. To clarify my methodological distinction and its stakes in Hegel’s and Sellars’ I will reference Lewis’ notion of the given. (shrink)

Cet article s’interroge sur ce qu’est l’ἀριθμητική τέχνη visée par Sextus dans le Contre les arithméticiens. Après avoir rappelé brièvement le contenu de M IV, on examine la nature de cette discipline. Une fois clarifiée la question de savoir en quoi consistait l’ἀριθμητική τέχνη dans l’Antiquité – et donc ce que visait Sextus dans M IV –, on examine son rapport avec les autres disciplines critiquées par Sextus dans le Contre les Professeurs. Cette enquête mène à mettre en lumière une (...) importante présupposition implicite dans l’attitude de Sextus à l’égard des sciences. (shrink)

[This is an edited version of a keynote talk at the conference on Neural Information Processing Systems (NeurIPS) on November 28, 2022, with some minor additions and subtractions.] -/- There has recently been widespread discussion of whether large language models might be sentient or conscious. Should we take this idea seriously? I will break down the strongest reasons for and against. Given mainstream assumptions in the science of consciousness, there are significant obstacles to consciousness in current models: for example, their (...) lack of recurrent processing, a global workspace, and unified agency. At the same time, it is quite possible that these obstacles will be overcome in the next decade or so. I conclude that while it is somewhat unlikely that current large language models are conscious, we should take seriously the possibility that successors to large language models may be conscious in the not-too-distant future. (shrink)

This edited volume systematically addresses the connection between Wilfrid Sellars and the history of modern philosophy, exploring both the content and method of this relationship. It intends both to analyze Sellars’s position in relation to singular thinkers of the modern tradition, and to inquire into Sellars’s understanding of philosophy as a field in reflective and constructive conversation with its past. The chapters in Part I cover Sellars’s interpretation and use of Descartes, Leibniz, Hume, Kant and Hegel. Part II features essays (...) on his relationship with Peirce, Frege, Carnap, Wittgenstein, American pragmatism, behaviorism and American realism, particularly his father, Roy Wood. Sellars and the History of Modern Philosophy features original contributions by many of the most renowned Sellars scholars throughout the world. It offers an exhaustive survey of Sellars’s views on the historical antecedents and metaphilosophical aspects of his thought. (shrink)

Recent years have witnessed the publication of numerous articles that draw a critical alignment between ethics and caring. In essence, this theme suggests that caring is a moral pursuit centred on the beneficent attention of one person shown to another. Yet, if such language is to have real poignancy, it must be geared towards an inclusive agenda that meets the needs of all within the community. Research evidence suggests that this is not always the case, especially in terms of the (...) care offered to members of minority ethnic groups. This article will focus on the findings of a qualitative research study that explored the expectations and perceived experiences of nursing care among members of the Pakistani community in Bradford, West Yorkshire, UK. The findings suggest that nurses should develop a more informed narrative that readily reflects the needs of the Pakistani community. (shrink)

This volume is devoted to Lewis's work in metaphysics and epistemology. Topics covered include properties, ontology, possibility, truthmaking, probability, the mind-body problem, vision, belief, and knowledge. The purpose of this collection, and the volumes that precede and follow it, is to disseminate more widely the work of an eminent and influential contemporary philosopher. The volume will serve as a useful work of reference for teachers and students of philosophy.

Dans la première partie de son article « Une morale est-elle compatible avec le scepticisme? », Jules Vuillemin propose une interprétation du scepticisme de Pyrrhon d’Élis et s’interroge sur sa compatibilité avec une vie morale. La présente contribution s’attache à resituer la lecture de Vuillemin dans l’histoire du pyrrhonisme ainsi que dans les débats récents à son sujet, et à la discuter en la comparant au néo-pyrrhonisme de Sextus Empiricus. À suivre Vuillemin, Pyrrhon suspend son jugement par rapport à tout, (...) y compris ses impressions. Cette suspension universelle provoquerait une impassibilité totale et fournirait une ligne de conduite, mais serait assez difficile à adopter. Nous suggérons que suspendre son jugement sur ses propres impressions n’est pas difficile, mais impossible ; que la façon dont, selon Vuillemin, cette suspension fournirait au sceptique une ligne de conduite implique une contradiction ; et qu’il existe une autre façon d’expliquer comment le sceptique peut, dans certaines limites, maintenir une ligne de conduite. (shrink)

Religion, science, and naturalism -- Perception and religious experience -- Panexperientialism, freedom, and the mind-body relation -- Naturalistic, dipolar theism -- Natural theology based on naturalistic theism -- Evolution, evil, and eschatology -- The two ultimates and the religions -- Religion, morality, and civilization -- Religious language and truth -- Religious knowledge and common sense.

One of Hume's most well-known works and a masterpiece of philosophy, A Treatise of Human Nature is indubitably worth taking the time to read.

One of Hume's most well-known works and a masterpiece of philosophy, A Treatise of Human Nature is indubitably worth taking the time to read.

Le volume offre huit articles sur le scepticisme pyrrhonien. Les essais, de la plume de M. Bonazzi, T. O’Keefe, J. Warren, F. Grgić, H. Thorsrud, S. Marchand, D. E. Machuca et O. Bueno, sont tous en anglais. Précédés d’une préface, d’une notice sur les auteurs et d’une brève introduction, ils sont suivis d’index des noms propres, des passages et des sujets. Chaque contribution est munie d’une bibliographie. Les deux premiers articles sont consacrés à la section des Esquisses Pyrrhoniennes (PH...

This collection of essays investigates the notions of life, living organisms, and human nature in Classical German Philosophy from a historical and conceptual perspective. Its 19 chapters move from the peculiarities of organic life to the peculiarities of the distinctly human life form and discuss the strengths and weaknesses of naturalistic accounts of life. In light of the growing interest in nature within current philosophical debates, the book provides an overview of what the philosophical epoch of Kant, Fichte, Schelling, Humboldt, (...) the Romantics, Hegel, and others can contribute to our understanding of life today. The collection of essays represents a plurality of approaches that reflects the pluralism of the tradition itself – highlighting the liveliness and polyphonic nature of the issues at stake and the ways in which they were approached in post-Kantian thought.In combining historical and philosophical investigation, the collection constitutes a unique resource for scholars and graduate students working in various areas related to the study of nature in philosophy, contemporary theories of science, and the humanities more generally. (shrink)

Alchourrón y Bulygin sostienen que el derecho positivo, además de normas, contiene definiciones, que ponen de manifiesto un aparato conceptual a través del cual pensamos la realidad. A partir de esta afirmación argumentaré que hay un aspecto del derecho al que la teoría jurídica no ha prestado la atención que merece: la red de conceptos o categorías a través de la cual el derecho piensa, estructura, esquematiza o imagina la realidad. Sobre la base de una visión pluralista, sostengo que el (...) derecho moderno contiene una red conceptual singular, diferente a la construida por la ciencia y a la que está implícita en la vida cotidiana, aun cuando pueda receptar aspectos de una y otra. Dicho en el léxico de Quine, el derecho incluye criterios propios de objetivación e individuación, es decir, una ontología propia. En ese camino propongo algunas distinciones generales que pueden ser útiles para la descripción del derecho: definiciones expresas e implícitas por un lado; aparatos conceptuales derivados y aparatos conceptuales singulares del derecho, por el otro. La argumentación revela asimismo la relevancia y singularidad de categorías jurídicas muy básicas, como las de persona y cosa. (shrink)

En 2004, la famille de Jules Vuillemin lègue aux Archives Henri-Poincaré un fonds constitué par les ouvrages, les tirés à part et les manuscrits du célèbre philosophe français, décédé aux Fourgs le 16 janvier 2001. Dans le cadre de la conservation et de la valorisation de ce fonds très riche, les Archives Henri-Poincaré organisent chaque année, au mois de décembre, une journée d’études autour d’un texte ou d’un aspect de la pensée de Jules Vuillemin, afin de d...

Je remercie Stéphane Marchand : ses objections me fournissent l’occasion d’éclaircir certains points capitaux de mon livre et de mon interprétation de Sextus Empiricus. Scepticisme et langage veut affronter la question de savoir si le sceptique pyrrhonien décrit par Sextus peut maîtriser une langue. Après avoir identifié le pyrrhonien à un sceptique radical, un individu dépourvu de croyances, je m’efforce de lui assurer la possibilité de parler en proposant plusieurs façons d’expliquer son co...

"My work has had nothing to do with gay liberation," Michel Foucault reportedly told an admirer in 1975. And indeed there is scarcely more than a passing mention of homosexuality in Foucault's scholarly writings. So why has Foucault, who died of AIDS in 1984, become a powerful source of both personal and political inspiration to an entire generation of gay activists? And why have his political philosophy and his personal life recently come under such withering, normalizing scrutiny by commentators as (...) diverse as Camille Paglia, Richard Mohr, Bruce Bawer, Roger Kimball, and biographer James Miller? David M. Halperin's Saint Foucault is an uncompromising and impassioned defense of the late French philosopher and historian as a galvanizing thinker whose career as a theorist and activist will continue to serve as a model for other gay intellectuals, activists, and scholars. A close reading of both Foucault and the increasing attacks on his life and work, it explains why straight liberals so often find in Foucault only counsels of despair on the subject of politics, whereas gay activists look to him not only for intellectual inspiration but also for a compelling example of political resistance. Halperin rescues Foucault from the endless nature-versus-nurture debate over the origins of homosexuality ("On this question I have absolutely nothing to say," Foucault himself once remarked) and argues that Foucault's decision to treat sexuality not as a biological or psychological drive but as an effect of discourse, as the product of modern systems of knowledge and power, represents a crucial political breakthrough for lesbians and gay men. Halperin explains how Foucault's radical vision of homosexuality as a strategic opportunity for self-transformation anticipated the new anti-assimilationist, anti-essentialist brand of sexual identity politics practiced by contemporary direct-action groups such as ACT UP. Halperin also offers the first synthetic account of Foucault's thinking about gay sex and the future of the lesbian and gay movement, as well as an up-to-the-minute summary of the most recent work in queer theory. "Where there is power, there is resistance," Michel Foucault wrote in The History of Sexuality, Volume I. Erudite, biting, and surprisingly moving, Saint Foucault represents Halperin's own resistance to what he views as the blatant and systematic misrepresentation of a crucial intellectual figure, a misrepresentation he sees as dramatic evidence of the continuing personal, professional, and scholarly vulnerability of all gay activists and intellectuals in the age of AIDS. (shrink)

Conceptual engineering is the design, implementation, and evaluation of concepts. Conceptual engineering includes or should include de novo conceptual engineering (designing a new concept) as well as conceptual re-engineering (fixing an old concept). It should also include heteronymous (different-word) as well as homonymous (same-word) conceptual engineering. I discuss the importance and the difficulty of these sorts of conceptual engineering in philosophy and elsewhere.

Confronted with the apparent explanatory gap between physical processes and consciousness, there are many possible reactions. Some deny that any explanatory gap exists at all. Some hold that there is an explanatory gap for now, but that it will eventually be closed. Some hold that the explanatory gap corresponds to an ontological gap in nature.

*[[This paper appears in _Toward a Science of Consciousness II: The Second Tucson Discussions and Debates_ (S. Hameroff, A. Kaszniak, and A.Scott, eds), published with MIT Press in 1998. It is a transcript of my talk at the second Tucson conference in April 1996, lightly edited to include the contents of overheads and to exclude some diversions with a consciousness meter. A more in-depth argument for some of the claims in this paper can be found in Chapter 6 of my (...) book _The Conscious Mind_ (Chalmers, 1996). ]]. (shrink)