In resistance training, the use of predicting proximity to momentary task failure, and repetitions in reserve scales specifically, is a growing approach to monitoring and controlling effort. However, its validity is reliant upon accuracy in the ability to predict MF which may be affected by congruence of the perception of effort compared with the actual effort required. The present study examined participants with at least 1 year of resistance training experience predicting their proximity to MF in two different experiments using (...) a deception design. Within each experiment participants performed four trials of knee extensions with single sets to their self-determined repetition maximum and MF. For the first experiment participants used loads equal to 70% of a one repetition maximum performed in a separate baseline session. Aiming to minimize participants between day variability in repetition performances, in the second separate experiment they used loads equal to 70% of their daily isometric maximum voluntary contraction. Results suggested that participants typically under predicted the number of repetitions they could perform to MF with a meta-analytic estimate across experiments of 2.0 [95%CIs 0.0 to 4.0]. Participants with at least 1 year of resistance training experience are likely not adequately accurate at gauging effort in submaximal conditions. This suggests that perceptions of effort during resistance training task performance may not be congruent with the actual effort required. This has implications for controlling, programming, and manipulating the actual effort in resistance training and potentially on the magnitude of desired adaptations such as improvements in muscular hypertrophy and strength. (shrink)

Numerous approaches to a quantum theory of gravity posit fundamental ontologies that exclude spacetime, either partially or wholly. This situation raises deep questions about how such theories could relate to the empirical realm, since arguably only entities localized in spacetime can ever be observed. Are such entities even possible in a theory without fundamental spacetime? How might they be derived, formally speaking? Moreover, since by assumption the fundamental entities cannot be smaller than the derived and so cannot ‘compose’ them in (...) any ordinary sense, would a formal derivation actually show the physical reality of localized entities? We address these questions via a survey of a range of theories of quantum gravity, and generally sketch how they may be answered positively. (shrink)

This is an opinionated guide to the literature on epistemic dilemmas. It discusses seven kinds of situations where epistemic dilemmas appear to arise; dilemmic, dilemmish, and non-dilemmic takes on them; and objections to dilemmic views along with dilemmist’s replies to them.

Epistemologists often appeal to the idea that a normative theory must provide useful, usable, guidance to argue for one normative epistemology over another. I argue that this is a mistake. Guidance considerations have no role to play in theory choice in epistemology. I show how this has implications for debates about the possibility and scope of epistemic dilemmas, the legitimacy of idealisation in Bayesian epistemology, uniqueness versus permissivism, sharp versus mushy credences, and internalism versus externalism.

This article compares the concept of habitus, as formulated in the work of Mauss and Bourdieu, with the concept of habit, as formulated in the work of Merleau-Ponty and Dewey. The rationale for this, on one level, is to seek to clarify these concepts and any distinction that there may be between them – though the article notes the wide variety of uses of both concepts and suggests that these negate the possibility of any definitive definitions or contrasts. More centrally, (...) however, the purpose of the comparison is to draw out a number of important issues and debates which, it is argued, further work must address if the concepts of habit and habitus are to continue to prove useful and illuminating in social science. (shrink)

Epistemologists spend a great deal of time thinking about how we should respond to our evidence. They spend far less time thinking about the ways that evidence can be acquired in the first place. This is an oversight. Some ways of acquiring evidence are better than others. Many normative epistemologies struggle to accommodate this fact. In this article I develop one that can and does. I identify a phenomenon – epistemic feedback loops – in which evidence acquisition has gone awry, (...) with the result that even beliefs based on the evidence are irrational. Examples include evidence acquired under the influence of confirmation bias and evidence acquired under the influence of cognitively penetrated experiences caused by implicit bias. I then develop a theoretical framework which enables us to understand why beliefs that are the outputs of epistemic feedback loops are irrational. Finally, I argue that many popular approaches to epistemic normativity may need to be abandoned on the grounds that they cannot comfortably explain feedback loops. The scope of this last claim is broad: it includes almost all contemporary theories of justified/rational belief and of the epistemology of cognitive penetration. (shrink)

This paper investigates the significance of T-duality in string theory: the indistinguisha- bility with respect to all observables, of models attributing radically different radii to space – larger than the observable universe, or far smaller than the Planck length, say. Two interpretational branch points are identified and discussed. First, whether duals are physically equivalent or not: by considering a duality of the familiar simple harmonic oscillator, I argue that they are. Unlike the oscillator, there are no measurements ‘outside’ string theory (...) that could distinguish the duals. Second, whether duals agree or disagree on the radius of ‘target space’, the space in which strings evolve according to string theory. I argue for the latter position, because the alternative leaves it unknown what the radius is. Since duals are physically equivalent yet disagree on the radius of target space, it follows that the radius is indeterminate between them. Using an analysis of Brandenberger and Vafa (1989), I explain why – even so – space is observed to have a determinate, large radius. The conclusion is that observed, ‘phenomenal’ space is not target space, since a space cannot have both a determinate and indeterminate radius: instead phenomenal space must be a higher-level phenomenon, not fundamental. (shrink)

Daniel Greco (forthcoming) argues that there cannot be epistemic dilemmas. I argue that he is wrong. I then look in detail at a would-be epistemic dilemma and argue that no non-dilemmic approach to it can be made to work. Along the way, there is discussion of octopuses, lobsters, and other ‘inscrutable cognizers’; the relationship between evaluative and prescriptive norms; a failed attempt to steal a Brueghel; epistemic and moral blame and residue; an unbearable guy who thinks he’s God’s gift to (...) women; excuses; stupid games involving hats; radical permissivism; how I’ll never be able to afford to buy a house in Hampstead; and many other exciting topics. (shrink)

I consider a number of reasons one might think we should only accept epistemic dilemmas in our normative epistemology as a last resort and argue that none of them is compelling.

Weyl symmetry of the classical bosonic string Lagrangian is broken by quantization, with profound consequences described here. Reimposing symmetry requires that the background space-time satisfy the equations of general relativity: general relativity, hence classical space-time as we know it, arises from string theory. We investigate the logical role of Weyl symmetry in this explanation of general relativity: it is not an independent physical postulate but required in quantum string theory, so from a certain point of view it plays only a (...) formal role in the explanation. (shrink)

The point of departure for this article is the observation that, despite his own personal involvement as an engaged intellectual, Pierre Bourdieu offers a very thin account of social movement activism, and one pre-empted by the rather limited concept of ‘crisis’. The aim of the article, however, is to argue that the central concepts of Bourdieu’s theory of practice can be used to provide an effective and interesting basis for the analysis of social movements, protest and contention. To this end (...) the article demonstrates how the concepts of habitus, capital and field, in particular, resonate with important findings from the social movement literature. The focus of the article is limited to an engagement with Bourdieu. It connects with other work by the author, however, in which he has argued that Bourdieu’s framework can be used to address very serious problems in social movement theory. (shrink)

Traditionally, analytic philosophers writing on aesthetics have given short shrift to nature. The last thirty years, however, have seen a steady growth of interest in this area. The essays and books now available cover central philosophical issues concerning the nature of the aesthetic and the existence of norms for aesthetic judgement. They also intersect with important issues in environmental philosophy. More recent contributions have opened up new topics, such as the relationship between natural sound and music, the beauty of animals, (...) and the aesthetics of gardens. Using these materials, it is now easy to include a module on the aesthetics of nature as one part of an introductory course on aesthetics, or even to design an entire upper-level undergraduate or graduate seminar around the topic. Author Recommends: Don Mannison, 'Comments Stimulated by Reinhardt's Remarks: A Prolegomenon to a Human Chauvinistic Aesthetic'. Environmental Philosophy. Eds. Don Mannison, Michael McRobbie, and Richard Routley (Canberra: Australian National University, 1980), 212–16. Readers coming fresh to contemporary debates may find the lack of attention to natural beauty in twentieth-century philosophy somewhat puzzling. This paper, which defends the view that nature cannot be aesthetically appreciated as such, presents this attitude in a particularly pure form. Ronald Hepburn, 'Contemporary Aesthetics and the Neglect of Natural Beauty'. British Analytical Philosophy. Eds. Bernard Williams and Alan Montefiore (London: Routledge and Kegan Paul, 1966), 285–310. Reprinted in The Aesthetics of Natural Environments. Eds. Allen Carlson and Arnold Berleant (Peterborough, Ontario: Broadview Press, 2004). This seminal essay marks the beginning of contemporary discussion of the aesthetics of nature. Many of its ideas and themes continue to reverberate in contemporary debates. Allen Carlson, Aesthetics and the Environment: The Appreciation of Nature, Art and Architecture (London: Routledge, 2000). This volume is a collection of Carlson's influential essays on environmental aesthetics. Chapters 4 and 5, 'Appreciation and the Natural Environment' and 'Nature, Aesthetic Judgment, and Objectivity', set the agenda for much subsequent discussion in the aesthetics of nature. Chapter 6, 'Nature and Positive Aesthetics', develops and defends the controversial idea that nature, unlike art, is always aesthetically good. Arnold Berleant, 'The Aesthetics of Art and Nature'. Landscape, Natural Beauty and the Arts. Eds. Salim Kemal and Ivan Gaskell (Cambridge: Cambridge University Press, 1993), 228–43. Reprinted in The Aesthetics of Natural Environments. Eds. Allen Carlson and Arnold Berleant (Peterborough, Ontario: Broadview Press, 2004). In this paper, Berleant presents his influential idea of an 'engaged aesthetics' for nature. Yuriko Saito, 'The Aesthetics of Unscenic Nature'. Journal of Aesthetics and Art Criticism 56 (1998): 101–11. This article develops Saito's idea that ethical considerations play a critical role in the aesthetics of nature, and presents a novel argument for Positive Aesthetics for nature. Malcolm Budd, The Aesthetic Appreciation of Nature: Essays on the Aesthetics of Nature (Oxford: Oxford University Press, 2002). This book collects Budd's papers on the aesthetics of nature, which contain important criticisms of Carlson's natural environmental model and the notion of Positive Aesthetics for nature. Noël Carroll, 'On Being Moved by Nature: Between Religion and Natural History'. Landscape, Natural Beauty and the Arts. Eds. Salim Kemal and Ivan Gaskell (Cambridge: Cambridge University Press, 1993), 244–66. Reprinted in The Aesthetics of Natural Environments. Eds. Allen Carlson and Arnold Berleant (Peterborough, Ontario: Broadview Press, 2004). This paper argues for the importance of aesthetic appreciation that emphasizes emotional responses to nature. A philosophically sophisticated and influential treatment by a leading aesthetician. Ned Hettinger, 'Allen Carlson's Environmental Aesthetics and Protection of the Environment'. Environmental Ethics 27 (2005): 57–76. In this essay, an environmental philosopher gives careful and thorough consideration to the place of aesthetic considerations in environmental protection, focusing on Carlson's work. John Andrew Fisher, 'What the Hills are Alive With: In Defense of the Sounds of Nature'. Journal of Aesthetics and Art Criticism 56 (1998): 167–79. Reprinted in The Aesthetics of Natural Environments. Eds. Allen Carlson and Arnold Berleant (Peterborough, Ontario: Broadview Press, 2004). Most discussions of nature aesthetics focus on visual experiences; this essay is the first philosophical study of the aesthetics of natural sounds. A nuanced and original paper. Allen Carlson and Arnold Berleant. 'Introduction: The Aesthetics of Nature'. The Aesthetics of Natural Environments. Eds. Allen Carlson and Arnold Berleant (Peterborough, Ontario: Broadview Press, 2004), 11–42. A comprehensive review of the literature, this essay contains the best available bibliography on the subject. Online Materials: http://plato.stanford.edu/entries/environmental-aesthetics/ Environmental Aesthetics: Allen Carlson's entry in the Stanford Encyclopedia of Philosophy. http://www.aesthetics-online.org/articles/index.php?articles_id=17 Teaching Environmental Aesthetics: Allen Carlson's article on the American Society for Aesthetics Web site. http://www.uqtr.uquebec.ca/AE/Vol_6/ Volume 6 of AE: Canadian Aesthetics Journal /Revue canadienne d'esthetique: Papers by Thomas Heyd and Ira Newman on Allen Carlson's book Aesthetics and the Environment, along with a response from Carlson. http://www.contempaesthetics.org/newvolume/pages/article.php?articleID=400 Paradoxes and Puzzles: Appreciating Gardens and Urban Nature: An essay by Stephanie Ross in the online journal Contemporary Aesthetics. Sample Syllabus for a three-week module in an undergraduate aesthetics course: This three week module can easily be adapted to fit shorter available class time or reduced reading expectations for students. A lighter two-week module, for instance, would drop the Hepburn reading and do either the Carroll essay or the Saito essay, but not both. Note that all readings for this module are reprinted in Allen Carlson and Arnold Berleant (eds.), The Aesthetics of Natural Environments (Peterborough, Ontario: Broadview Press, 2004). Week 1: Introduction Reading: Ronald Hepburn, 'Contemporary Aesthetics and the Neglect of Natural Beauty'. British Analytical Philosophy. Eds. Bernard Williams and Alan Montefiore (London: Routledge and Kegan Paul, 1966), 285–310. Discussion of Hepburn's essay will allow the instructor to bring out the distinctive issues and themes of the aesthetics of nature. Week 2: Objectivity or Subjectivity? Readings: Allen Carlson, 'Appreciation and the Natural Environment'. Journal of Aesthetics and Art Criticism 37 (1979): 267–76. Arnold Berleant, 'The Aesthetics of Art and Nature'. Landscape, Natural Beauty and the Arts. Eds. Salim Kemal and Ivan Gaskell (Cambridge: Cambridge University Press, 1993), 228–43. This section covers two very different approaches to thinking about the aesthetic appreciation of nature. Consideration of these provides an opportunity for students to reflect on nature's relationship to art, and on the character of aesthetic experience itself. Week 3: Pluralistic Approaches Readings: Yuriko Saito, 'Appreciating Nature on its Own Terms'. Environmental Ethics 20 (1998): 135–49. Noël Carroll, 'On Being Moved by Nature: Between Religion and Natural History'. Landscape, Natural Beauty and the Arts. Eds. Salim Kemal and Ivan Gaskell (Cambridge: Cambridge University Press, 1993), 244–66. This section considers approaches that are motivated by perceived limitations of the two approaches mentioned above. In discussing these, students will focus on the significance, for the aesthetics of nature, of emotion and also of broader ethical considerations. Sample Syllabus for an upper-level undergraduate or graduate seminar: Books on Syllabus: Glenn Parsons, Aesthetics and Nature [AN] (London: Continuum Press, forthcoming November 2008). Allen Carlson, Aesthetics and the Environment: The Appreciation of Nature, Art and Architecture [AE] (London: Routledge, 2000). Allen Carlson and Arnold Berleant (eds.), The Aesthetics of Natural Environments [ANE] (Peterborough, Ontario: Broadview Press, 2004). Week 1: Introduction Parsons, AN, ch. 1. Allen Carlson, 'Environmental Aesthetics'. The Routledge Companion to Aesthetics. Eds. Berys Gaut and Dominic Lopes (London: Routledge, 2001), 423–36. Don Mannison, 'Comments Stimulated by Reinhardt's Remarks: A Prolegomenon to a Human Chauvinistic Aesthetic'. Environmental Philosophy. Eds. Don Mannison, Michael McRobbie, and Richard Routley (Canberra: Australian National University, 1980), 212–16. Ronald Hepburn, 'Contemporary Aesthetics and the Neglect of Natural Beauty'. British Analytical Philosophy. Eds. Bernard Williams and Alan Montefiore (London: Routledge and Kegan Paul, 1966), 285–310. Reprinted in ANE. Week 2: Imagination Parsons, AN, ch. 2. Thomas Heyd, 'Aesthetic Appreciation and the Many Stories About Nature'. British Journal of Aesthetics 41 (2001): 125–37. Reprinted in ANE. Emily Brady, 'Imagination and the Aesthetic Appreciation of Nature'. Journal of Aesthetics and Art Criticism 56 (1998): 139–47. Reprinted in ANE. Marcia Eaton, 'Fact and Fiction in the Aesthetic Appreciation of Nature'. Journal of Aesthetics and Art Criticism 56 (1998): 149–56. Reprinted in ANE. Week 3: Formalism Parsons, AN, ch. 3. Carlson, 'Formal Qualities and the Natural Environment', AE, ch. 3. Allen Carlson, 'On the Possibility of Quantifying Scenic Beauty'. Landscape Planning 4 (1977): 131–72. Ira Newman, 'Reflections on Allen Carlson's Aesthetics and the Environment'. AE: Canadian Aesthetics Journal /Revue canadienne d'esthetique 6 (2001) http://www.uqtr.uquebec.ca/AE/Vol_6/Carlson/newman.html>. Nick Zangwill, 'Formal Natural Beauty'. Proceedings of the Aristotelian Society 21 (2001): 209–24. Week 4: Science and Nature Aesthetics Parsons, AN, ch. 4. Aldo Leopold, 'Country'. A Sand County Almanac, with Essays on Conservation from Round River (New York, NY: Ballantine Books, 1966), 177–80. Carlson, 'Appreciation and the Natural Environment', AE, ch. 4. Carlson, 'Nature, Aesthetic Judgment, and Objectivity', AE, ch. 5. Glenn Parsons, 'The Aesthetics of Nature'. Philosophy Compass 2 (2007): 358–72. Week 5: Positive Aesthetics Carlson, 'Nature and Positive Aesthetics', AE, ch. 6. Eugene Hargrove, Foundations of Environmental Ethics (Denton, TX: Environmental Ethics Books, 1996), ch. 6. Yuriko Saito, 'The Aesthetics of Unscenic Nature'. Journal of Aesthetics and Art Criticism 56 (1998): 101–11. Malcolm Budd, 'The Aesthetics of Nature'. Proceedings of the Aristotelian Society 100 (2000): 137–57. Glenn Parsons, 'Nature Appreciation, Science and Positive Aesthetics'. British Journal of Aesthetics 42 (2002): 279–95. Week 6: Animals Edmund Burke, A Philosophical Enquiry into the Origin of our Ideas of the Sublime and Beautiful. Ed. James T. Boulton (Notre Dame, IN: University of Notre Dame Press, 1968 [1757]), Pt. III, sec. VI. Holmes Rolston III, 'Beauty and the Beast: Aesthetic Experience of Wildlife'. Valuing Wildlife: Economic and Social Perspectives. Eds. Daniel J. Decker and Gary R. Goff (Boulder, CO: Westview Press, 1987), 187–96. Glenn Parsons, 'The Aesthetic Value of Animals'. Environmental Ethics 27 (2007): 151–69. Week 7: Pluralism Parsons, AN, ch. 5. Noël Carroll, 'On Being Moved by Nature: Between Religion and Natural History'. Landscape, Natural Beauty and the Arts. Eds. Salim Kemal and Ivan Gaskell (Cambridge: Cambridge University Press, 1993), 244–66. Reprinted in ANE. Yuriko Saito, 'Appreciating Nature on its Own Terms'. Environmental Ethics 20 (1998): 135–49. Reprinted in ANE. Ronald Hepburn, 'Nature Humanized: Nature Respected'. Environmental Values 7 (1998): 267–79. Ronald Hepburn, 'Trivial and Serious in Aesthetic Appreciation of Nature'. Landscape, Natural Beauty and the Arts. Eds. Salim Kemal and Ivan Gaskell (Cambridge: Cambridge University Press, 1993), 65–80. Glenn Parsons and Allen Carlson, 'New Formalism and the Aesthetic Appreciation of Nature'. Journal of Aesthetics and Art Criticism 62 (2004): 363–76. Week 8: Engagement Parsons, AN, ch. 6. Arnold Berleant, 'The Aesthetics of Art and Nature'. Landscape, Natural Beauty and the Arts. Eds. Salim Kemal and Ivan Gaskell (Cambridge: Cambridge University Press, 1993), 228–43. Reprinted in ANE. Cheryl Foster, 'The Narrative and the Ambient in Environmental Aesthetics'. Journal of Aesthetics and Art Criticism 56 (1998): 127–37. Reprinted in ANE. Allen Carlson, 'Aesthetics and Engagement'. British Journal of Aesthetics 33 (1993): 220–27. Week 9: The Sublime Immanuel Kant, Critique of the Power of Judgment. Trans. P. Guyer and E. Matthews (Cambridge University Press, 2000 [1790]). Excerpts from sections 23–9. Edmund Burke, A Philosophical Enquiry into the Origin of our Ideas of the Sublime and Beautiful. Ed. James T. Boulton (Notre Dame, IN: University of Notre Dame Press, 1968 [1757]). Excerpts from Pt. II, sections 1–8. Ronald Hepburn, 'The Concept of the Sublime: Has it any Relevance for Philosophy Today?'. Dialectics and Humanism 15 (1988): 137–55. Stan Godlovitch, 'Icebreakers: Environmentalism and Natural Aesthetics'. Journal of Applied Philosophy 11 (1994): 15–30. Reprinted in ANE. Malcolm Budd, 'Delight in the Natural World: Kant on the Aesthetic Appreciation of Nature. Part I: The Sublime in Nature'. British Journal of Aesthetics 38 (1998): 233–50. Week 10: Aesthetic Preservation Parsons, AN, ch. 7. Janna Thompson, 'Aesthetics and the Value of Nature'. Environmental Ethics 17 (1995): 291–305. Holmes Rolston III, 'From Beauty to Duty: Aesthetics of Nature and Environmental Ethics'. Environment and the Arts: Perspectives on Environmental Aesthetics. Ed. Arnold Berleant (Aldershot, UK: Ashgate, 2002), 127–41. Ned Hettinger, 'Allen Carlson's Environmental Aesthetics and Protection of the Environment'. Environmental Ethics 27 (2005): 57–76. Keekok Lee, 'Beauty for Ever?'. Environmental Values 4 (1995): 213–25. Week 11: Gardens Parsons, AN, ch. 8. Mara Miller, The Garden as an Art (Albany, NY: State University of New York Press, 1993), ch. 1. Mara Miller, 'Gardens as Works of Art: The Problem of Uniqueness'. British Journal of Aesthetics 26 (1986): 252–6. Stephanie Ross, What Gardens Mean (Chicago, IL: University of Chicago Press, 1998), chs. 1, 7. Tom Leddy, 'Gardens in an Expanded Field'. British Journal of Aesthetics 28 (1988): 327–40. David Cooper, 'In Praise of Gardens'. British Journal of Aesthetics 43 (2003): 101–13. Week 12: Art in Nature Parsons, AN, ch. 9. Carlson, 'Is Environmental Art an Aesthetic Affront to Nature?', AE, ch. 10. Sheila Lintott, 'Ethically Evaluating Land Art: Is It Worth It?'. Ethics, Place & Environment 10 (2007): 263–77. Emily Brady, 'Aesthetic Regard for Nature in Environmental and Land Art'. Ethics, Place & Environment 10 (2007): 287–300. Focus Questions1. Are there any important differences between the aesthetic appreciation of art and the aesthetic appreciation of nature? If so, what are they?2. Is preserving nature for its aesthetic value a coherent idea?3. What is the ugliest natural thing or place you can think of? How might proponents of Positive Aesthetics for nature deal with your example?4. Does the concept of the sublime have any significance for our contemporary experience of nature? If it does, what relation does it bear to our aesthetic appreciation of nature?5. Watch Rivers and Tides (2001), the documentary film about the British environmental artist Andy Goldsworthy. Ethically speaking, how do you think we ought to regard his art-making? (shrink)

Recently it has been increasingly popular to argue that knowledge is the norm of belief. I present an argument against this view. The argument trades on the epistemic situation of the subject in the bad case. Notably, unlike with other superficially similar arguments against knowledge norms, knowledge normers preferred strategy of appealing to the distinction between permissibility and excusability cannot help them to rebut this argument.

A version of relationism that takes spatiotemporal structures—spatial geometry and a standard of inertia—to supervene on the history of relations between bodies is described and defended. The account is used to explain how the relationist should construe models of Newtonian mechanics in which absolute acceleration manifestly does not supervene on the relations; Ptolemaic and Copernican models for example. The account introduces a new way in which a Lewis-style ‘best system’ might capture regularities in a broadly Humean world; a defence is (...) given against a charge of indeterminism that applies to any such approach to laws. (shrink)

I argue that evidentialism should be rejected because it cannot be reconciled with empirical work on bias in cognitive and social psychology.

I argue that it is epistemically permissible to believe that P when it is epistemically rational to believe that P. Unlike previous defenses of this claim, this argument is not vulnerable to the claim that permissibility is being confused with excusability.

Much apprehension has been expressed by philosophers about the method of renormalisation in quantum field theory, as it apparently requires illegitimate procedure of infinite cancellation. This has lead to various speculations, in particular in Teller (1989). We examine Teller's discussion of perturbative renormalisation of quantum fields, and show why it is inadequate. To really approach the matter one needs to understand the ideas and results of the renormalisation group, so we give a simple but comprehensive account of this topic. With (...) this in hand, we explain how renormalisation can and should be understood. One thing that is revealed is that apparently very successful theories such as quantum electro-dynamics cannot be universally true; resolving the tension between success and falsity leads to a picture in which any theory may be viewed as irreducibly phenomenological. We explain how, and argue that the support for this view is tenuous at best. (shrink)

Since antiquity, natural philosophers have struggled to comprehend the nature of three tightly interconnected concepts: space, time, and motion. A proper understanding of motion, in particular, has been seen to be crucial for deciding questions about the natures of space and time, and their interconnections. Since the time of Newton and Leibniz, philosophers’ struggles to comprehend these concepts have often appeared to take the form of a dispute between absolute conceptions of space, time and motion, and relational conceptions. This article (...) guides the reader through some of the history of these philosophical struggles. Rather than taking sides in the (alleged) ongoing debates, or reproducing the standard dialectic recounted in most introductory texts, we have chosen to scrutinize carefully the history of the thinking of the canonical participants in these debates — principally Descartes, Newton, Leibniz, Mach and Einstein. Readers interested in following up either the historical questions or current debates about the natures of space, time and motion will find ample links and references scattered through the discussion and in the Other Internet Resources section below. (shrink)

I want to review some ways in which Quantum Mechanics seems to affront our “common-sense” notions of identity. Let’s start with a list.

ABSTRACTIn ‘The Principles of Art’, R. G. Collingwood argues that art is the imaginative expression of emotion. So much the worse, then, for Collingwood. The theory seems hopelessly inadequate to the task of capturing art’s extension: of encompassing all the works we generally suppose should be rounded up under the concept. A great number of artworks, and several art forms, have nothing to do with emotion. But it would be surprising were Collingwood philistine enough to think that art is only (...) ever concerned with communicating quotidian affective states, like anger, fear or love. Surely he has some more sophisticated notion of emotion in mind, and quite probably of expression too. And it turns out that those sophisticated notions can be pushed towards a version of the expression theory that meets the extensional challenge. If we interpret Collingwood as saying that expression is a particular application of imagination, and that imagination is the faculty that refines ideas of emotions, and that ‘emotions’... (shrink)

This is a brief response to Loïc Wacquant’s article, ‘Homines in extremis’. The response makes four contributions. First, I consider some of the reasons for the confusion surrounding the habitus concept, arguing that this confusion may be lessened (without any obvious loss) if we revert to ‘habit’ or ‘disposition’. Second, I argue that, irrespective of these terminological quibbles, it is vital that we do not conflate ‘habitus’ and ‘embodied actor’ as some accounts do. There is more to the embodied actor (...) than her habits and she can only have habits because this is so. Third, I begin to explore the point of view offered by ‘carnal ethnography’ and call for further clarification of that point of view. Finally, I note that Wacquant’s ethnography has the effect of rendering certain of Bourdieu’s ideas in a more concrete manner and foregrounding sociability, which the latter is sometimes inclined to ignore. This, I suggest, is a positive development. (shrink)

Drawing upon ethnographic data, this article analyses 'vocabularies of motive' amongst individuals who work out at a private health club in the Greater Manchester area (UK). The article draws a distinction between motives for starting at a gym and motives for continuing, and analyses each separately. It also seeks to draw out, in the latter case, the many motives which conflict with a stereotypical view of 'working out' found in some academic accounts. Working out is not only an instrumental means (...) of cultivating valued bodily attributes, it is argued, nor are its attractions necessarily all 'bodily' (at least narrowly defined) in nature. (shrink)

Noncommutative geometries generalize standard smooth geometries, parametrizing the noncommutativity of dimensions with a fundamental quantity with the dimensions of area. The question arises then of whether the concept of a region smaller than the scale—and ultimately the concept of a point—makes sense in such a theory. We argue that it does not, in two interrelated ways. In the context of Connes’ spectral triple approach, we show that arbitrarily small regions are not definable in the formal sense. While in the scalar (...) field Moyal–Weyl approach, we show that they cannot be given an operational definition. We conclude that points do not exist in such geometries. We therefore investigate (a) the metaphysics of such a geometry, and (b) how the appearance of smooth manifold might be recovered as an approximation to a fundamental noncommutative geometry. (shrink)

We conduct a case study analysis of a proposal for the emergence of time based upon the approximate derivation of three grades of temporal structure within an explicit quantum cosmological model which obeys a Wheeler-DeWitt type equation without an extrinsic time parameter. Our main focus will be issues regarding the consistency of the approximations and derivations in question. Our conclusion is that the model provides a self-consistent account of the emergence of chronordinal, chronometric and chronodirected structure. Residual concerns relate to (...) explanatory rather than consistency considerations. (shrink)

This chapter explores insights concerning the relations among imagination, imagined selves, and knowledge of one’s own self that are to be found in Fernando Pessoa’s The Book of Disquiet. The insights are explored via close reading of the text and comparison with contemporaries of Pessoa. First, a tempting account of the importance of imagination in The Book of Disquiet is set out. On this reading, Pessoa is immersed in miasmatic boredom, but able to temporarily rise above it through the restorative (...) powers of escapist imagination. But, it is suggested, Pessoa neither enjoys his prolific imaginings, nor returns from them restored. It is argued that Pessoa’s disquiet owes to failures of imagination; the book presents a sharp contrast between Pessoa’s keen awareness of the importance of a successful, active imaginative life, and his failure to maintain such a thing. It is further argued that these failures point us towards a better account of imagination’s importance to Pessoa, an account that both prefigures and goes beyond Sartre’s ideas about the relations between nothingness, imagination, and self-consciousness. (shrink)

The quantum gravity program seeks a theory that handles quantum matter fields and gravity consistently. But is such a theory really required and must it involve quantizing the gravitational field? We give reasons for a positive answer to the first question, but dispute a widespread contention that it is inconsistent for the gravitational field to be classical while matter is quantum. In particular, we show how a popular argument (Eppley and Hannah 1997) falls short of a no-go theorem, and discuss (...) possible counterexamples. Important issues in the foundations of physics are shown to bear crucially on all these considerations. (shrink)

In this paper we critically review the various attempts that have been made to understand quantum field theory. We focus on Teller's (1990) harmonic oscillator interpretation, and Bohm et al.'s (1987) causal interpretation. The former unabashedly aims to be a purely heuristic account, but we show that it is only interestingly applicable to the free bosonic field. Along the way we suggest alternative models. Bohm's interpretation provides an ontology for the theory--a classical field, with a quantum equation of motion. This (...) too has problems; it is not Lorentz invariant. (shrink)

I criticize a certain view of the 'quanta' of quantum mechanics that sees them as fundamentally non-atomistic and fundamentally significant for our understanding of quantum fields. In particular, I have in mind work by Redhead and Teller (1991, 1992 and Teller 1990). I prove that classical particles do not have the rather strong flavour of identity often associated with them; permuting positions and momenta does not produce distinct states. I show that even the label free excitation formalism is compatible with (...) a mild form of atomism. Finally, I summarise some of the principle objections to an 'oscillator' interpretation of quantum fields. (shrink)

Electronic dance music has much about it to interest philosophers. In this article, I explore facets of dance music cultures, using the issue of authenticity as a framing question. The problem of sorting real or authentic dance music from mainstream or commercial clubbing can be treated as a matter of history and genre-definition; as a matter of defining scenes or subcultures; and as a matter of blackness. In each case, electronic dance music, and critical discourse surrounding it, offers fresh illumination (...) of aesthetic questions. I briefly characterise the main genres of dance music, match conversations about the hardcore continuum with philosophers’ accounts of genre, survey sociologists’ ways of thinking about cultures and their connections to taste and personal identity, and link criticisms that dance music now lacks blackness to conceptions of black aesthetics. This article is Part I of two; Part II focusses on dancers, DJs, and the aesthetics and ontology of dance music itself. Video abstract. (shrink)

The quantum gravity program seeks a theory that handles quantum matter fields and gravity consistently. But is such a theory really required and must it involve quantizing the gravitational field? We give reasons for a positive answer to the first question, but dispute a widespread contention that it is inconsistent for the gravitational field to be classical while matter is quantum. In particular, we show how a popular argument falls short of a no-go theorem, and discuss possible counterexamples. Important issues (...) in the foundations of physics are shown to bear crucially on all these considerations. (shrink)

It is often argued that the requirement that moral obligations be ‘action guiding’ motivates the claim that one can be obligated to ϕ only if one can ϕ. I argue that even on its most plausible interpretation, this argument fails, since the reasoning behind it leads to the absurd conclusion that one is permitted to ϕ if one cannot ϕ.

Williamson (2000) appeals to considerations about when it is natural to say that a hypothesis is consistent with one’s evidence in order to motivate the claim that all and only knowledge is evidence. It is argued here that the relevant considerations do not support this claim, and in fact conflict with it.