Decoherence results from the dissipative interaction between a quantum system and its environment. As the system and environment become entangled, the reduced density operator describing the system "decoheres" into a mixture (with the interference terms damped out). This formal result prompts some to exclaim that the measurement problem is solved. I will scrutinize this claim by examining how modal and relative-state interpretations can use decoherence. Although decoherence cannot rescue these interpretations from general metaphysical difficulties, decoherence may help these interpretations to (...) pick out a preferred basis. I will explore whether decoherence solves nagging technical problems associated with selecting a preferred basis. (shrink)

This book, the first to explore religious education and post-modernity in depth, sets out to provide a much needed examination of the problems and possibilities post-modernity raises for religious education.

In this brief overview paper, we analyse information flow in the brain. Although Shannon’s information concept, in its pure algebraic form, has made a number of valuable contributions to neuroscience, information dynamics within the brain is not fully captured by its classical description. These additional dynamics consist of self-organisation, interplay of stability/instability, timing of sequential processing, coordination of multiple sequential streams, circular causality between bottom-up and top-down operations, and information creation. Importantly, all of these processes are dynamic, hierarchically nested and (...) correspond to continuous brain state change, even if the external environment remains constant. This is where metastable coordination comes into play. In a metastable regime of brain functioning, as a result of the simultaneous co-existence of tendencies for independence and cooperation, information is continuously created, preserved for some time and then dissipated through the formation of dynamical and nested spatio-temporal coalitions among simple neuronal assemblies and larger coupled conglomerates of them—so-called delocalised operational modules. (shrink)

Are the characteristics and relationships among spatio-temporal entities "real" or are they simply conventional terms that note similarities among things in the world but lack any reality of their own? Or if they are real, what sort of reality do they have? Do we live in a world of causes and effects, or is this relation a useful contrivance for our convenience? What is the nature of this "I" that we invoke when referring to ourselves? Is it body? Mind? Both? (...) Neither? And once its nature is understood, what can be said of the choices it makes? Are they really ours, freely made by an independent will? Or is each choice determined more by the internal makeup of the "I" we happen to be and the social/environmental circumstances in which this "I" finds itself, rather than by any act of will? But if each of us "could not have chosen otherwise" than we have, are we no better than the machines we construct? Then again, maybe some of our more advanced machines should be considered conscious entities? Introduction to Metaphysics: The Fundamental Questions presents these and other intriguing questions, many of which have challenged philosophers from antiquity to the present in their efforts to speculate on the nature of what is real. Often filled with twists and turns, dark corners and hidden recesses, this journey of discovery is an exciting excursion into the depths of human understanding. As guides for this intellectual journey editor Andrew Schoedinger has chosen an impressive array of creative and thought-provoking philosophers: Peter Abelard, Aristotle, Renford Bambrough, George Berkeley, Joseph Butler, Rudolf Carnap, Roderick Chisholm, R.G. Collingwood, Arthur Danto, Donald Davidson, Rene Descartes, C.J. Ducasse, Alvin I. Goldman, Keith Gunderson, David Hume, John Locke, Alasdair MacIntyre, A.I. Melden, John Stuart Mill, D.F. Pears, Hilary Putnam, Anthony Quinton, Bertrand Russell, Michael Scriven, Sydney Shoemaker, P. F. Strawson, Richard Taylor, and others. This volume is a unique invitation to join a distinguished group of theorists as they tackle tough questions concerning the existence of universals, the nature of causation, understanding personal identity, the tangled web of free will, and the challenges posed by the advent of artificial intelligence. (shrink)

I discuss three elements of Dennis Schulting’s new book on the transcendental deduction of the pure concepts of the understanding, or categories. First, that Schulting gives a detailed account of the role of each individual category. Second, Schulting’s insistence that the categories nevertheless apply ‘en bloc’. Third, Schulting’s defence of Kant’s so-called reciprocity thesis that subjective unity of consciousness and objectivity in the sense of cognition’s objective purport are necessary conditions for the possibility of one another. I endorse these fascinating (...) but unfashionable claims and sketch my own version of what they amount to, which is quite different to Schulting’s own construal. I point to some fundamental limitations and problems for Schulting’s position and argue that his project needs to be reshaped or at least reconceived in the face of them. Even if Schulting’s argument is sound, it does not provide a deduction, properly speaking, of the categories. (shrink)

Field theories have been central to physics over the last 150 years, and there are several theories in contemporary physics in which physical fields play key causal and explanatory roles. This paper proposes a novel field trope-bundle (FTB) ontology on which fields are composed of bundles of particularized property instances, called tropes and goes on to describe some virtues of this ontology. It begins with a critical examination of the dominant view about the ontology of fields, that fields are properties (...) of a substantial substratum. (shrink)

Of all the crew to serve on a starship Enterprise, none has had such a convoluted line of existence as the venerable Mr. Spock. This chapter explores what the various incarnations of Mr. Spock can tell us about the nature of reality, existence, and personal identity. Lewis argues for the metaphysical theory of modal realism: all possible worlds are as real as the actual world. In science fiction parlance, this philosophical concept of world is more often called a universe. Thus, (...) Earth and Vulcan are both part of the same world depicted in Star Trek. The central question Lewis addresses is whether our world is the only real world, or whether other possible worlds could also be considered real. Lewis argues for the metaphysical theory of modal realism, all possible worlds are as real as the actual world. (shrink)

Originally published: Philadelphia: Saunders College Pub., c1990.

"I have been using the book in a freshman seminar in which we are exploring college. Most of the texts we are using are academic satire novels, but we are using Delbanco's book to help us talk about the place of college in American culture.

Programmed cell death (PCD) in unicellular organisms is in some instances an altruistic trait. When the beneficiaries are clones or close kin, kin selection theory may be used to explain the evolution of the trait, and when the trait evolves in groups of distantly related individuals, group or multilevel selection theory is invoked. In mixed microbial communities, the benefits are also available to unrelated taxa. But the evolutionary ecology of PCD in communities is poorly understood. Few hypotheses have been offered (...) concerning the community role of PCD despite its far-reaching effects. The hypothesis we consider here is that PCD is a black queen. The Black Queen Hypothesis (BQH) outlines how public goods arising from a leaky function are exploited by other taxa in the community. Black Queen (BQ) traits are essential for community survival, but only some members bear the cost of possessing them, while others lose the trait In addition, BQ traits have been defined in terms of adaptive gene loss, and it is unknown whether this has occurred for PCD. Our conclusion is that PCD fulfils the two most important criteria of a BQ (leakiness and costliness), but that more empirical data are needed for assessing the remaining two criteria. In addition, we hold that for viewing PCD as a BQ, the original BQH needs to include social traits. Thus, despite some empirical and conceptual shortcomings, the BQH provides a helpful avenue for investigating PCD in microbial communities. (shrink)

In recent years, and especially in the wake of Barack Obama's reelection, projections that whites will soon become a minority have proliferated. In this essay, I will argue that such predictions are misleading at best, as they rest on questionable philosophical presuppositions, including the presupposition that racial concepts like ‘whiteness’ are static and unchanging rather than fluid and continually being reconstructed. If I am right about these fundamental inaccuracies, one must wonder why the myth of the white minority persists. I (...) will argue that by reenvisioning whites as a minority culture struggling against a hostile dominant group, and by promoting white solidarity as a response to a crisis, such predictions actually serve to defend and legitimize white supremacy. (shrink)

First Published in 2004. Routledge is an imprint of Taylor & Francis, an informa company.

The early publication history of the very short Breviarium of Guillaume Budé's De asse et partibus eius is analysed and clarified, and the earliest versions are dated to c. 1520. Though short, it was an influential little work, and in particular its links with Cuthbert Tunstall's De arte supputandi are explored. It is argued that Bude himself was the author of the Brevianum, and that it may have a relevance to the Budé/Porzio controversy about the 'sestertius' and 'sestertium'.

A signal development in contemporary physics is the widespread use, in explanatory contexts, of highly idealized models. This paper argues that some highly idealized models in physics have genuine explanatory power, and it extends the explanatory role for such idealizations beyond the scope of previous philosophical work. It focuses on idealizations of nonlinear oscillator systems.

Recent work on emergence in physics has focused on the presence of singular limit relations between basal and upper-level theories as a criterion for emergence. However, over-emphasis on the role of singular limit relations has somewhat obscured what it means to say that a property or behaviour is emergent. This paper argues that singular limits are not central to emergence and develops an alternative account of emergence in terms of the failure of basal explainability. As a consequence, emergence and reduction, (...) long held to be two sides of the same coin in the emergentist tradition, are largely decoupled. (shrink)

Volume 13, Issue 2, May 2019, Page 265-269.

This essay reviews John Gardner’s recent books, From Personal Life to Private Law, and Torts and Other Wrongs. Both books offer profound insights into private law’s concerns with justice and our reasons for action. The essay focuses on Gardner’s continuity thesis, and in particular on his idea that a third party may act on behalf of a wrongdoer as her delegee. Three settings are considered. First, I will discuss settings in which the state or another third party acts to remedy (...) a wrong without the wrongdoer’s consent. Second, I will review settings in which the legal remedies at issue – e.g., general damages or punitive damages – may not fit well with the idea that the state is acting on behalf of a wrongdoer. Third, I will analyze settings in which the state may be acting on behalf of right holders, yet still be concerned with the continuity thesis. Assessing each of these contexts offers further insights into the purpose of private law remedies. (shrink)

The liar paradox in its simplest form is the following argument. Consider the sentence 'this sentence is false'; call that the "liar sentence". Suppose the liar sentence is true. Then, since it says it is false, the liar sentence is false. So our supposition that it is true was mistaken, and the liar sentence must be false. But that's precisely what the liar sentence says, so it is true after all. The liar sentence is, therefore, both true and false---an absurd (...) result. ;Hans Herzberger has argued that several solutions to the Grelling paradox exhibit a common pattern: the very devices we introduce in order to avoid one version of the paradox are integral components of new versions of the paradox. Herzberger suggests that this is typical of semantic paradox in general. Chapters 1, 2, and 3 of this dissertation examine several possible solutions to the liar---especially appeals to language levels and to contexts---and attempt to locate these possible solutions in Herzberger's pattern. ;There is some reason to think that this pattern is inescapable---that is, that the liar paradox is ultimately unsolvable---so the remaining two chapters of this dissertation explore what follows from the claim that it is unsolvable. Chapter 4 develops an argument from the claim that the liar is unsolvable to the claim that we cannot understand ourselves. Chapter 5, then, attempts to make sense of this circumstance by invoking a Nietzschean view of thinking and truth---perspectivalism, which holds that all thinking concerns interpretation and that there are no uninterpreted facts. Given some perspectivalist assumptions, we can see how it is inevitable that we will be unable to understand ourselves---and how we can nevetherless attain a certain limited kind of understanding. Perspectivalism also recommends a certain intellectual humility: if everything is interpretation, then no view of mine can be a comprehensive and accurate view of the way the world really is. This by itself is not a surprising claim; the surprising claim is that the liar paradox is the basis of it. (shrink)

Broad comparisons of international relations across time—of the prospects for peace and of the possibilities for a new ethics for a connected world—typically focus on two dimensions: economic globalization and integration on the one hand, and the character of major interstate relations on the other. One of the most striking features of the pre-1914 world was precisely the coincidence of intensified globalization with a dramatic deterioration in major power relations, the downfall of concert-style approaches to international order, and the descent (...) into total war and ideological confrontation—what T. S. Eliot termed “the panorama of futility and anarchy which is contemporary history.” Today's optimists stress the degree to which globalization appears much more firmly institutionalized than it was a hundred years ago, the rather striking success of global economic governance in responding to the financial crisis of 2007–2008, and the longer-term trend within international society to move away from major-power war. Pessimists are less sure. They worry that we have had to re-learn just how unstable global capitalism can be, both in terms of the wrenching societal changes produced by economic success and of the political strains produced by slowdown and recession. And they point to the abiding or resurgent power of nationalism in all of the core countries in the system, the return of balance-of-power thinking, and the renewed salience of major power politics. (shrink)