Inspired by recent progress in multi-agent Reinforcement Learning (RL), in this work we examine the collective intelligent behaviour of theoretical universal agents by introducing a weighted mixture operation. Given a weighted set of agents, their weighted mixture is a new agent whose expected total reward in any environment is the corresponding weighted average of the original agents' expected total rewards in that environment. Thus, if RL agent intelligence is quantified in terms of performance across environments, the weighted mixture's intelligence is (...) the weighted average of the original agents' intelligences. This operation enables various interesting new theorems that shed light on the geometry of RL agent intelligence, namely: results about symmetries, convex agent-sets, and local extrema. We also show that any RL agent intelligence measure based on average performance across environments, subject to certain weak technical conditions, is identical (up to a constant factor) to performance within a single environment dependent on said intelligence measure. (shrink)

A letter to The Times of London, May 9, 1992 protesting the Cambridge University proposal to award an honorary degree to M. Jacques Derrida.

The paper offers a three-premise argument that a person with first-hand experience of possession and exorcism, such as an exorcist, can have a justified belief in the existence of demons. (1) “Exorcism involves a process by which the exorcist comes to believe that testimony is offered by a demon.” Cited for (1) are the Gospels, the Roman Ritual, some modern cases of exorcism, and exorcism practices in non-Christian contexts. (2) “If defeaters are absent, the exorcist may treat as reliable the (...) process by which he comes to believe that testimony is offered by a demon.” For (2) a case is offered that we have a reliable ability to identify when testimony is being offered and when it is being offered by particular types of agents, what is termed testifier-identification. (3) “In many cases of exorcism, defeaters are absent.” An inductive case is given for (3) by responding to possible defeaters, including several suggested recently by David Kyle Johnson. Therefore, in many cases of exorcism the exorcist may treat as reliable the processes by which he comes to believe that testimony is offered by a demon, and so can have a justified belief in the existence of demons. (shrink)

David. J. Chalmers examines eleven possible solutions to the meta-problem of consciousness, ‘the problem of explaining why we think that there is a problem of consciousness.’ The present paper argues that Chalmers overlooks an explanation that he has otherwise taken seriously, and which a number of philosophers, physicists, and computer scientists have taken seriously as well: the hypothesis that we are living in a computer simulation. This paper argues that a particular version of the simulation hypothesis is at least (...) as good of a solution to the meta-problem of consciousness as many explanations Chalmers considers, and may even be a better one—as it may be the best solution to a much broader meta-philosophical problem: the ‘meta-problem of everything’, the problem of explaining why our world has the quantum-mechanical, relativistic, and philosophical features it does. (shrink)

This is a review of the first volume of Herbert Marcuse's collected works. Highlights include correspondence with Heidegger, who refuses to repudiate the Nazis.

Various theorists contend that we may live in a computer simulation. David Chalmers in turn argues that the simulation hypothesis is a metaphysical hypothesis about the nature of our reality, rather than a sceptical scenario. We use recent work on consciousness to motivate new doubts about both sets of arguments. First, we argue that if either panpsychism or panqualityism is true, then the only way to live in a simulation may be as brains-in-vats, in which case it is unlikely (...) that we live in a simulation. We then argue that if panpsychism or panqualityism is true, then viable simulation hypotheses are substantially sceptical scenarios. We conclude that the nature of consciousness has wide-ranging implications for simulation arguments. (shrink)

This paper is an essay published under the title A Critical Praxis from the Americas: Thinking about the Zapatistas in Chiapas with Herbert Marcuse, Bolívar Echeverría, and Adolfo Sánchez Vázquez, in Lamas, A. T .; Wolfson, T. & Funke, P. N. (Eds.). (2017). The Great Refusal: Herbert Marcuse and Contemporary Social Movements (pp. 329-342). Philadelphia: Temple University Press. The author kindly authorized the publication in Spanish version by Jhoan Sebastian David Giraldo and Cristian Leandro Sánchez Marín.

Hegel attacks Kantian morality most often without stating an opposing moral theory, tending to subsequently take up discussion of religion or the state. Commentators have variously suggested the logical consequence of Hegel's position is "the dissolution of ethics in sociology" without "room for personal morality of any kind" or that Hegel's argument is against Kantian <i>Moralitat</i>, which allows the private individual to appeal beyond social mores to universal moral standards, with Hegel insisting that concrete values come instead from <i>Sittlichkeit</i>, the (...) social order. If thinking of morality as a purely private matter of the individual's conscience seems too abstract, the Hegelian criticisms should show that moral reflections are vacuous unless they take account of the social world in which they will be realized as concrete actions. From the Hegelian's perspective on morality as seen from the more inclusive context of <i>Sittlichkeit</i>, social action that is also moral will not need to be analyzed in terms of Kant's metaphysical dualisms between reason and inclination, intentions and consequences, or the sensible and the intelligible realms. Whereas Kant thinks moral theory leads directly to religious and metaphysical postulates, Hegel deliberately leads it in another direction. He can be understood historically as going beyond Kant's effort to secularize moral philosophy. Kant begins this process by grounding moral philosophy in reason alone, not in religion. Religious postulates may follow from moral beliefs, says Kant, but morality is not derived from religious premisses. In going from private moral conscience not to religious beliefs but to social, political, and historical considerations (which could include religion seen as a social institution), Hegel extends the process of secularizing moral philosophy." Marcuse and Knox could thus both be right, since Hegel's goal is not to replace Kant's moral philosophy with another, competing moral philosophy, but to accept it, while recognizing its limitations, as a special case of a larger theory of social action. In the Hegelian jargon, from a standpoint recognizing Sittlichkeit, Moralitdt is thus <i>aufgehoben</i>, that is, Kant's formal procedures will be both "negated" (criticized for their limitations) and "preserved" (embedded in a more inclusive philosophy). (shrink)

One of Marcuse's most salient concepts, The Great Refusal nevertheless exhibits considerable internal tension as it hovers between its individualistic and collectivist conceptualizations. Central to this unresolved dichotomy is the concept of reification, which leads Marcuse to subsume individual experience beneath the umbrella of the abstract universal, following Marx. Yet the Great Refusal is purported by Marcuse to issue from a purely individual rejection of the capitalist system of domination. I explore these contradictions in light of Marcuse's critique of technology (...) under capitalism, looking back to Condorcet and Torgot and the implied Myth of Progress these thinkers embrace, with a view to the implementation of a more satisfying articulation of what might be termed the "anarcho-psychological critique" of self and society. (shrink)

La trayectoria intelectual de Marcuse está acompañada de un compromiso constante con las formas de la crítica filosófica heredadas de la tradición occidental, desde la forma en la cual aparece la negación de lo dado a través del diálogo socrático hasta la manera en que se configura la crítica del sistema capitalista en el siglo XX. Esto no quiere decir que Marcuse haya sido un erudito que absorbió y comprendió a cabalidad todos los sistemas e ideas filosóficas y que las (...) utilizó al servicio de su propia consideración crítica del mundo; más bien resalta que entre sus elaboraciones han estado presentes algunos de los contextos e ideas más potentes del pensamiento que ha entendido de manera crítica la estructura de las sociedades humanas. (shrink)

En este texto pretendo explorar cómo el pensamiento, una vez establecido como dominante en una determinada época histórica, puede perder su capacidad crítica original y transformarse en un instrumento de perpetuación del statu quo. En primer lugar, abordo la relación entre lenguaje y ciencia, considerando cómo la instrumentalización del lenguaje puede influir en la dirección de la ciencia y limitar su potencial transformador y crítico. En segundo lugar, profundizo en el problema de la razón instrumental y su impacto en el (...) dominio de la naturaleza, es decir, cómo la racionalidad instrumental puede conducir a una cosificación de la naturaleza y a una pérdida de la sensibilidad hacia el entorno. Finalmente, pretendo analizar cómo esta forma de pensamiento puede influir en las relaciones humanas, en la cultura, en la idea de progreso y en la concepción misma del individuo, afectando su capacidad de acción autónoma y su potencial emancipador. A través de este análisis me propongo arrojar luz sobre la compleja dinámica entre Ilustración, racionalidad y pensamiento administrado, y cómo esta interrelación puede impactar en la configuración de la sociedad y en el desarrollo de los individuos. (shrink)

La negativa a imaginar la "otra" sociedad más allá del capitalismo no está ajena a la prohibición judía de nombrar o describir a Dios. Cualquiera que sea la fuente del tabú, de las principales figuras relacionadas con la Escuela de Frankfurt, solo Mar- cuse se ha atrevido en los últimos años a romperlo. Solo Marcuse ha tratado de decir lo indecible en un esfuerzo cada vez más urgente por reintroducir un molde utópico a la teoría socialista.

Este libro promete ser una contribución para el estudio de la teoría crítica en general y para el análisis de la historia de la Escuela de Frankfurt en particular. Todos los trabajos que están contenidos en este volumen hacen parte del amplio marco teórico de la teoría crítica de la sociedad. Muchos siguen las huellas de los fundadores de esta tendencia, mientras que otros se presentan como críticos de la misma y unos cuantos más tratan de vincular problemas y contextos (...) de relevancia a los conceptos más destacados que se empezaron a construir hace cien años en Frankfurt. Encontramos como buena excusa para su publicación precisamente el año centenario del Instituto de Investigación Social. Además, hemos creído conveniente organizar los materiales en secciones que van desde la historia de la Escuela de Frankfurt hasta la consideración de algunos interrogantes de actualidad motivados por el desarrollo de la teoría crítica. No obstante, con esto no pretendemos establecer límites absolutos de clasificación. Confesamos que nuestra forma de organizar los ensayos responde simplemente a criterios editoriales más que a cuestiones teóricas y conceptuales. Claramente las intersecciones entre los estudios aquí presentados son amplias y hacen que cada una de las propuestas pueda dialogar con las otras en función de sus evidentes parecidos de familia. (shrink)

Tarihte herhalde çok az soru Tanrı’nın varlığı sorusu kadar sık sorulmuş, çok yanıtlanmış ve verilen birbirinden farklı onca yanıta rağmen kesin bir sonuca ulaştırılamayıp tartışılmaya devam etmiştir. Yine de geçmişe dönüp baktığımızda bu soruya verilen farklı yanıtların farklı uygarlıkların inşa edilmesine, bazılarının yıkılmasına, acımasız çatışmalara ve her şeye rağmen kucaklaşmalara da vesile olduğunu görüyoruz. Tanrı var mı? Varsa onu nasıl bilebiliriz? Tanrı yoksa her şey mubah mı? İnsan aklı ilahi olanı kavrayabilir mi? Tanrı’nın varlığı ahlaklı olmanın şartı mı? Evren akıllı (...) bir tasarımcının imzasını taşıyor mu? Bu kitapta felsefeci William David Beck, bu sorulara tarihte verilen yanıtları ve bu konudaki tartışmaları ele alarak meselenin genel ve tarihsel bir tablosunu bize sunuyor. Platon, Aristoteles, Marcus Aurelius gibi Eski Yunan ve Roma düşünürlerinden Anselmus, Thomas Aquinas, Augustinus ve Yahudi-Hıristiyan geleneğine, Doğu’nun bilgelerine, İbni Rüşd, Fârâbî ve Gazzâlî gibi İslam düşünürlerinden Alvin Plantinga, Graham Oppy, Sam Harris, Richard Dawkins, Max Tegmark gibi Batılı modern ilahiyatçılara, bilim insanlarına ve Yeni Ateizm hareketine kadar uzanan bir çizgide “Tanrı var mı?” sorusuna verilen çeşitli yanıtları ve bu yanıtlara sunulan akılcı gerekçeleri ortaya koyarak soruya felsefece bir yanıt vermenin nasıl bir iş olduğunu da gösteriyor. (shrink)

Until fairly recently it was not uncommon for political theorists to hold the view that people cannot be expected to act in accordance with the public interest without some incentive. Authors such as Marcus Tullius Cicero, John Locke, David Hume and Adam Smith, for instance, held that people often act in accordance with the public interest, but more from a concern for their honour and reputation than from a concern for the greater good. Today, most authors take a (...) more demanding view, maintaining that people are to be just solely from a love for justice, not from a fear of losing face. In this article today's prevailing view, which sees honour as something obsolete and archaic and not as a legitimate motive, is contrasted with the older view that honour is important for both knowing what moral is and acting on it. Subsequently, it is argued that the ethics of honour, especially in the form it took in the works of Hume and Smith, can still be of value, exactly because it is less demanding. (shrink)

Much recent discussion in the philosophy of mathematics has concerned the indispensability argument—an argument which aims to establish the existence of abstract mathematical objects through appealing to the role that mathematics plays in empirical science. The indispensability argument is standardly attributed to W. V. Quine and Hilary Putnam. In this paper, I show that this attribution is mistaken. Quine's argument for the existence of abstract mathematical objects differs from the argument which many philosophers of mathematics ascribe to him. Contrary to (...) appearances, Putnam did not argue for the existence of abstract mathematical objects at all. I close by suggesting that attention to Quine and Putnam's writings reveals some neglected arguments for platonism which may be superior to the indispensability argument. (shrink)

This essay focuses on three recent books on morality and virtue, Michael Slote's 'Morals from Motives', Rosalind Hursthouse's 'On Virtue Ethics', and Philippa Foot's 'Natural Goodness'. Slote proposes an "agent-based" ethical theory according to which the ethical status of acts is derivative from assessments of virtue. Following Foot's lead, Hursthouse aims to vindicate an ethical naturalism that explains human goodness on the basis of views about human nature. Both Hursthouse and Slote take virtue to be morally basic in a way (...) that Foot, to her credit, does not. We argue that all three views face a range of serious difficulties. (shrink)

This is an extended intellectual obituary for Hilary Putnam.

Functional intentionality is the dominant theory about how mental states come to have the content that they do. Phenomenal intentionality is an increasingly popular alternative to that orthodoxy, claiming that intentionality cannot be functionalized and that nothing is a mental state with intentional content unless it is phenomenally conscious. There is a consensus among defenders of phenomenal intentionality that the kind of phenomenology that is both necessary and sufficient for having a belief that "there is a tree in the quad" (...) is that the agent be consciously aware of the meaning of "tree" and "quad". On this theory, experiences with a valence -- experiences like happiness and sadness, satisfaction and frustration -- are irrelevant to intentionality. This paper challenges that assumption and considers several versions of "valent phenomenal intentionality" according to which a capacity for valent conscious experiences is either a necessary or a sufficient condition for intentionality (or both). (shrink)

We are quickly passing through the historical moment when people work in front of a single computer, dominated by a small CRT and focused on tasks involving only local information. Networked computers are becoming ubiquitous and are playing increasingly significant roles in our lives and in the basic infrastructure of science, business, and social interaction. For human-computer interaction o advance in the new millennium we need to better understand the emerging dynamic of interaction in which the focus task is no (...) longer confined to the desktop but reaches into a complex networked world of information and computer-mediated interactions. We think the theory of distributed cognition has a special role to play in understanding interactions between people and technologies, for its focus has always been on whole environments: what we really do in them and how we coordinate our activity in them. Distributed cognition provides a radical reorientation of how to think about designing and supporting human-computer interaction. As a theory it is specifically tailored to understanding interactions among people and technologies. In this article we propose distributed cognition as a new foundation for human-computer interaction, sketch an integrated research framework, and use selections from our earlier work to suggest how this framework can provide new opportunities in the design of digital work materials. (shrink)

I discuss the relevance of the current predicament in cosmology to the debate over scientific realism. I argue that the existence of two, empirically successful but ontologically inconsistent cosmological theories presents difficulties for the realist position.

Political philosophers frequently claim that political ideals can provide normative guidance for unjust and otherwise nonideal circumstances. This is mistaken. This paper demonstrates that political ideals contribute nothing to our understanding of the normative principles we should satisfy amidst unjust or otherwise nonideal circumstances.

Why do people create extra representations to help them make sense of situations, diagrams, illustrations, instructions and problems? The obvious explanation— external representations save internal memory and com- putation—is only part of the story. I discuss seven ways external representations enhance cognitive power: they change the cost structure of the inferential landscape; they provide a structure that can serve as a shareable object of thought; they create persistent referents; they facilitate re- representation; they are often a more natural representation of (...) structure than mental representations; they facilitate the computation of more explicit encoding of information; they enable the construction of arbitrarily complex structure; and they lower the cost of controlling thought—they help coordinate thought. Jointly, these functions allow people to think more powerfully with external representations than without. They allow us to think the previously unthinkable. (shrink)

Experimental philosophy is often presented as a new movement that avoids many of the difficulties that face traditional philosophy. This article distinguishes two views of experimental philosophy: a narrow view in which philosophers conduct empirical investigations of intuitions, and a broad view which says that experimental philosophy is just the colocation in the same body of (i) philosophical naturalism and (ii) the actual practice of cognitive science. These two positions are rarely clearly distinguished in the literature about experimental philosophy, both (...) pro and con. The article argues, first, that the broader view is the only plausible one; discussions of experimental philosophy should recognize that the narrow view is a caricature of experimental philosophy as it is currently done. It then shows both how objections to experimental philosophy are transformed and how positive recommendations can be provided by adopting a broad conception of experimental philosophy. (shrink)

I argue that some important elements of the current cosmological model are 'conventionalist’ in the sense defined by Karl Popper. These elements include dark matter and dark energy; both are auxiliary hypotheses that were invoked in response to observations that falsified the standard model as it existed at the time.

This essay articulates a kind of conservatism that it argues is the most fundamental and important kind of conservatism, viz. existential conservatism, which involves an affirmative and appreciative stance towards the given world. While this form of conservatism can be connected to political conservatism, as seen with Roger Scruton, it need not be, as seen with G. A. Cohen. It is argued that existential conservatism should be embraced whether or not one embraces political conservatism, though it is also shown that (...) existential conservatism imposes constraints on our political thinking. In particular, it is argued that Cohen's ‘luck egalitarianism’ stands at odds with his existential conservatism and that one should be a sufficientarian rather than an egalitarian with regard to economic justice. (shrink)

To explore the question of physical thinking – using the body as an instrument of cognition – we collected extensive video and interview data on the creative process of a noted choreographer and his company as they made a new dance. A striking case of physical thinking is found in the phenomenon of marking. Marking refers to dancing a phrase in a less than complete manner. Dancers mark to save energy. But they also mark to explore the tempo of a (...) phrase, or its movement sequence, or the intention behind it. Because of its representational nature, marking can serve as a vehicle for thought. Importantly, this vehicle is less complex than the version of the same phrase danced ‘full-out’. After providing evidence for distinguishing different types of marking, three ways of understanding marking as a form of thought are considered: marking as a gestural language for encoding aspects of a target movement, marking as a method of priming neural systems involved in the target movement, and marking as a method for improving the precision of mentally projecting aspects of the target. (shrink)

Human beings seek to transcend limits. This is part of our potential greatness, since it is how we can realize what is best in our humanity. However, the limit-transcending feature of human life is also part of our potential downfall, as it can lead to dehumanization and failure to attain important human goods and to prevent human evils. Exploring the place of limits within a well-lived human life this work develops and defends an original account of limiting virtues, which are (...) concerned with recognizing proper limits in human life. The limiting virtues that are the focus are humility, reverence, moderation, contentment, neighborliness, and loyalty, and they are explored in relation to four kinds of limits: existential limits, moral limits, political limits, and economic limits. These virtues have been underexplored in discussions about virtue ethics, and when they have been explored it has not been with regard to the general issue of the place of limits within a well-lived human life. The account of the limiting virtues provided here, however, is intended as a counter to other prominent approaches to ethics: namely, autonomy-centered approaches and consequentialist (or maximizing) approaches. This account is also used to address a number of important contemporary issues such as genetic engineering, distributive justice, cosmopolitanism vs. patriotism, and the ethical status of growth-based economics. (shrink)

In this paper we assess two sides of the debate concerning biomedical enhancement. First, the idea that biomedical enhancement should be prohibited on the grounds that it degrades human nature; second, that biomedical enhancement can in principle remove the source of moral evil. In so doing, we will propose a different notion of human nature, what we shall call the agato-teleological idea of human nature, and its implications for a philosophical understanding of the human body. Also, we will point out (...) why it seems unreasonable to think that bodily enhancement is sufficient to guarantee moral progress. Finally, we will propose the idea that our technological societies are in need of a new moral virtue, what we shall call the virtue of non-conservative bodily integrity. (shrink)

An orthodox view in marketing ethics is that it is morally impermissible to market goods to specially vulnerable populations in ways that take advantage of their vulnerabilities. In his signature article “Marketing and the Vulnerable,” Brenkert (Bus Ethics Q Ruffin Ser 1:7–20, 1998) provided the first substantive defense of this position, one which has become a well-established view in marketing ethics. In what follows, we throw new light on marketing to the vulnerable by critically evaluating key components of Brenkert’s general (...) arguments. Specifically, we contend that Brenkert has failed to offer us any persuasive reasons to think that it is immoral to market to the vulnerable in ways that take advantage of their vulnerability. Although Brenkert does highlight the fact that the specially vulnerable are at greater risk of being harmed by already immoral marketing practices (e.g., deception, manipulation), he fails to establish that the specially vulnerable are a unique moral category of market clients or that there are special moral standards that apply to them. Moreover, even if Brenkert’s position were theoretically defensible, the practical implications of his position are far less tenable than he suggests. If our criticisms are sound, then Brenkert and others who endorse his position are seriously mistaken regarding how one can permissibly market products to vulnerable populations, and, in addition, they have improperly categorized certain morally permissible marketing practices as being immoral. (shrink)

Kant’s account of the freedom gained through virtue builds on the Socratic tradition. On the Socratic view, when morality is our end, nothing can hinder us from attaining satisfaction: we are self-sufficient and free since moral goodness is (as Kant says) “created by us, hence is in our power.” But when our end is the fulfillment of sensible desires, our satisfaction requires luck as well as the cooperation of others. For Kant, this means that happiness requires that we get other (...) people to work for our ends; and this requires, in turn, that we gain control over the things other people value so as to have influence over them. If this plan for happiness is not subordinated to morality, then what is most valuable to us will be precisely what others value. This is the root of the “passions” that make us evil and make us slaves whose satisfaction depends on others. But, significantly, this dependence is a moral slavery and hence does not signal a loss, or even diminishment of the kind of freedom required for moral responsibility. (shrink)

Absolute nothing is the absence of our universe and its laws. Without these rules, nothingness has infinite potential. This implies that within the infinite probability of nothing, infinity can emerge. This would be expressed through infinite universes like our own. Infinite of these universes will differ by several particles, appearing and disappearing for no reason other than fulfilling every possibility. This universe is the product of a greater realisation of infinity and we can test this theory via the measurement of (...) our universe’s most fundamental particles appearing and disappearing for no discernible internal reason (random to our perspective). (shrink)

"I would like to address the nature of transgression and its logic or itinerary in Sade's work. If this task is somewhat speculative and incomplete, it perhaps mirrors the foundational incompleteness of the more than sixteen extant volumes of Sade's writings. For a more exhaustive, if not definitive, resolution of the very issue of transgression, the analysis would have to continue the debate between Derrida and Foucault over the validity of Bataille's celebrated account of transgression, which in turn draws upon (...) the earlier work of Roger Caillois." (opening paragraph of the article). (shrink)

This essay gives an account of how traditional morality is best understood and also why it is worth defending (even if some reform is needed) and how this might be done. Traditional morality is first contrasted with supposedly more enlightened forms of morality, such as utilitarianism and liberal Kantianism (i.e., autonomy-centered ethics). The focus here is on certain sacred values that are central to traditional morality and which highlight this contrast and bring out the attractions of traditional morality. Next, this (...) essay explores and offers support for the convergence thesis to which traditional morality, understood as common morality, is committed. This thesis states that although there are diverse moral traditions, insofar as they are in good order we should expect them to converge upon a common or universal morality, even if there remain some differences in the details. The defense of this thesis provides justification for the validity of traditional morality as it suggests an objective basis. (shrink)

Absolute nothing is the absence of our universe and its laws. Without these rules, nothingness has infinite potential. This implies that within the infinite probability of nothing, infinity can emerge. This would be expressed through infinite universes like our own. Infinite of these universes will differ by several particles, appearing and disappearing for no reason other than fulfilling every possibility. This universe is the product of a greater realisation of infinity and we can test this theory via the measurement of (...) our universe’s most fundamental particles appearing and disappearing for no discernible internal reason (random to our perspective). (shrink)

Paul Feyerabend argued that theories can be faced with experimental anomalies whose refuting character can only be recognized by developing alternatives to the theory. The alternate theory must explain the experimental results without contrivance and it must also be supported by independent evidence. I show that the situation described by Feyerabend arises again and again in experiments or observations that test the postulates in the standard cosmological model relating to dark matter. The alternate theory is Milgrom’s modified dynamics. I discuss (...) three examples: the failure to detect dark-matter particles in laboratory experiments; the lack of evidence for dark-matter sub-haloes and the dwarf galaxies that are postulated to inhabit them; and the failure to confirm the predicted orbital decay of Milky Way satellite galaxies and other systems due to dynamical friction against the dark matter. In each case, Feyerabend’s criterion directs us to interpret the experimental or observational results as an indirect refutation of the standard cosmological model in favor of Milgrom’s theory. (shrink)

When people make sense of situations, illustrations, instructions and problems they do more than just think with their heads. They gesture, talk, point, annotate, make notes and so on. What extra do they get from interacting with their environment in this way? To study this fundamental problem, I looked at how people project structure onto geometric drawings, visual proofs, and games like tic tac toe. Two experiments were run to learn more about projection. Projection is a special capacity, similar to (...) perception, but less tied to what is in the environment. Projection, unlike pure imagery, requires external structure to anchor it, but it adds ‘mental’ structure to the external scene much like an augmented reality system adds structure to an outside scene. A person projects when they look at a chessboard and can see where a knight may be moved. Because of the cognitive costs of sustaining and extending projection, humans make some of their projections real. They create structure externally. They move the piece, they talk, point, notate, represent. Much of our interactivity during sense making and problem solving involves a cycle of projecting then creating structure. (shrink)

Most models of generational succession in sexually reproducing populations necessarily move back and forth between genic and genotypic spaces. We show that transitions between and within these spaces are usually hidden by unstated assumptions about processes in these spaces. We also examine a widely endorsed claim regarding the mathematical equivalence of kin-, group-, individual-, and allelic-selection models made by Lee Dugatkin and Kern Reeve. We show that the claimed mathematical equivalence of the models does not hold. *Received January 2007; revised (...) April 2008. †To contact the authors, please write to: Elisabeth Lloyd, Department of History and Philosophy of Science, 130 Goodbody Hall, Indiana University, Bloomington, IN 47405; e-mail: [email protected]; Richard Lewontin, Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138; Marcus Feldman, Department of Biological Sciences, Stanford University, Stanford, CA 94305; e-mail: [email protected]. (shrink)

The strongest arguments for the permissibility of geoengineering (also known as climate engineering) rely implicitly on non-ideal theory—roughly, the theory of justice as applied to situations of partial compliance with principles of ideal justice. In an ideally just world, such arguments acknowledge, humanity should not deploy geoengineering; but in our imperfect world, society may need to complement mitigation and adaptation with geoengineering to reduce injustices associated with anthropogenic climate change. We interpret research proponents’ arguments as an application of a particular (...) branch of non-ideal theory known as “clinical theory.” Clinical theory aims to identify politically feasible institutions or policies that would address existing (or impending) injustice without violating certain kinds of moral permissibility constraints. We argue for three implications of clinical theory: First, conditional on falling costs and feasibility, clinical theory provides strong support for some geoengineering techniques that aim to remove carbon dioxide from the atmosphere. Second, if some kinds of carbon dioxide removal technologies are supported by clinical theory, then clinical theory further supports using those technologies to enable “overshoot” scenarios in which developing countries exceed the cumulative emissions caps that would apply in ideal circumstances. Third, because of tensions between political feasibility and moral permissibility, clinical theory provides only weak support for geoengineering techniques that aim to manage incoming solar radiation. (shrink)

What constitutes numerically one and the same tradition diachronically, at different times? This question is the focus of often violent dispute in societies. Is it capable of a rational resolution? Many accounts attempt that resolution with a diagnosis of ambiguity of the disputed concept-Islam, Marxism, or democracy for example. The diagnosis offered is in terms of vagueness, namely the vague criteria for sameness or similarity of central beliefs and practices.

Call a thought whose expression involves the utterance of an indexical an indexical thought. Thus, my thoughts that I’m annoyed, that now is not the right time, that this is not acceptable, are all indexical thoughts. Such thoughts present a prima facie problem for the thesis that thought contents are phenomenally individuated -- i.e., that each distinct thought type has a proprietarily cognitive phenomenology such that its having that phenomenology makes it the thought that it is -- given the assumption (...) that phenomenology is intrinsically determined. My concern in this paper is to blunt standard intuitions concerning the external individuation of indexical thought contents, and to defend a conception of indexical thought content that is entirely phenomenal and internalist. (shrink)