The Hong and Page ‘diversity trumps ability’ result has been used to argue for the more general claim that a diverse set of agents is epistemically superior to a comparable group of experts. Here we extend Hong and Page’s model to landscapes of different degrees of randomness and demonstrate the sensitivity of the ‘diversity trumps ability’ result. This analysis offers a more nuanced picture of how diversity, ability, and expertise may relate. Although models of this sort can indeed be suggestive (...) for diversity policies, we advise against interpreting such results overly broadly. (shrink)

In a series of formal studies and less formal applications, Hong and Page offer a ‘diversity trumps ability’ result on the basis of a computational experiment accompanied by a mathematical theorem as explanatory background (Hong & Page 2004, 2009; Page 2007, 2011). “[W]e find that a random collection of agents drawn from a large set of limited-ability agents typically outperforms a collection of the very best agents from that same set” (2004, p. 16386). The result has been extremely influential as (...) an epistemic justification for diversity policy initiatives. Here we show that the ‘diversity trumps ability’ result is tied to the particular random landscape used in Hong and Page’s simulation. We argue against interpreting results on that random landscape in terms of ‘ability’ or ‘expertise.’ These concepts are better modeled on smother and more realistic landscapes, but keeping other parameters the same those are landscapes on which it is groups of the best performing that do better. Smoother landscapes seem to vindicate both the concept and the value of expertise. Change in other parameters, however, also vindicates diversity. With an increase in the pool of available heuristics, diverse groups again do better. Group dynamics makes a difference as well; simultaneous ‘tournament’ deliberation in a group in place of the ‘relay’ deliberation in Hong and Page’s original model further emphasizes an advantage for diversity. ‘Tournament’ 2 dynamics particularly shows the advantage of mixed groups that include both experts and non-experts. As a whole, our modeling results suggest that relative to problem characteristics and conceptual resources, the wisdom of crowds and the wisdom of the few each have a place. We regard ours as a step toward attempting to calibrate their relative virtues in different modelled contexts of intellectual exploration. (shrink)

Moral philosophy has long been dominated by the aim of understanding morality and the virtues in terms of principles. However, the underlying assumption that this is the best approach has received almost no defence, and has been attacked by particularists, who argue that the traditional link between morality and principles is little more than an unwarranted prejudice. In Principled Ethics, Michael Ridge and Sean McKeever meet the particularist challenge head-on, and defend a distinctive view they call "generalism as a (...) regulative ideal.". (shrink)

I discuss "Poetic Naturalism" -- there is only one world, the natural world, but there are many ways of talking about it -- both as a general concept, and how it accounts for our actual world. I talk about emergence, fundamental physics, entropy and complexity, the origins of life and consciousness, and moral constructivism.

Emmanuel Levinas has been Professor of Philosophy at the Sorbonne and the director of the Ecole Normale Israelite Orientale. Through such works as "Totality and Infinity" and "Otherwise than Being", he has exerted a profound influence on twentieth-century continental philosophy, providing inspiration for Derrida, Lyotard, Blanchot and Irigaray. "The Levinas Reader" collects, often for the first time in English, essays by Levinas encompassing every aspect of his thought: the early phenomenological studies written under the guidance and inspiration of Husserl and (...) Heidegger; the fully developed ethical critique of such totalizing philosophies; the pioneering texts on the moral dimension to aesthetics; the rich and subtle readings of the Talmud which are an exemplary model of an ethical, transcendental philosophy at work; the admirable meditations on current political issues. Sean Hand's introduction gives a complete overview of Levinas's work and situates each chapter within his general contribution to phenomenology, aesthetics, religion, politics and, above all, ethics. Each essay has been prefaced with a brief introduction presenting the basic issues and the necessary background, and suggesting ways to study the text further. (shrink)

The theory of object-dependent singular thought is outlined and the central motivation for it, turning on the connection between thought content and truth conditions, is discussed. Some of its consequences for the epistemology of thought are noted and connections are drawn to the general doctrine of externalism about thought content. Some of the main criticisms of the object-dependent view of singular thought are outlined. Rival conceptions of singular thought are also sketched and their problems noted.

This book provides an account of the nature of time, especially time's arrow and the role of entropy, at a semi-popular level. Special attention is given to statistical mechanics, the past hypothesis, and possible cosmological explanations thereof.

Celebrated yoga teacher and activist Seane Corn shares pivotal accounts of her life with raw honesty—enriched with in-depth spiritual teachings—to help us heal, evolve, and change the world “My first lessons in spirituality and yoga had nothing to do with a mat, but everything to do with waking up. They included angels, seeing God, and being in Heaven. But, believe me, not the way you might think.” So begins Revolution of the Soul. What comes next reads like a riveting memoir (...) filled with uncensored moments of joy, pain, wonder, and humor. Except, this book is so much more than that. Seane's real purpose is to guide us into a deep, gut-level understanding of our highest Self through yoga philosophy and other tools for emotional healing—not just as abstract ideas but as embodied, fully felt wisdom. Why? To spark a "revolution of the soul" in each of us, so we can awaken to our purpose and become true agents of change. Just a few of the stops along the way include: The everyday "angels" Seane finds in the gritty corners of New York's 1980s East Village; her early struggles as a total yoga-class misfit; the profound shadow work and body-based practices that helped her to heal childhood trauma, OCD, unhealthy behaviors, and relationship wounding; hard-earned lessons from some of the most heartbreaking places on the planet; and many other unforgettable teaching stories. (shrink)

Quine's set theory, New Foundations, has often been treated as an anomaly in the history and philosophy of set theory. In this book, Sean Morris shows that it is in fact well-motivated, emerging in a natural way from the early development of set theory. Morris introduces and explores the notion of set theory as explication: the view that there is no single correct axiomatization of set theory, but rather that the various axiomatizations all serve to explicate the notion of (...) set and are judged largely according to pragmatic criteria. Morris also brings out the important interplay between New Foundations, Quine's philosophy of set theory, and his philosophy more generally. We see that his early technical work in logic foreshadows his later famed naturalism, with his philosophy of set theory playing a crucial role in his primary philosophical project of clarifying our conceptual scheme and specifically its logical and mathematical components. (shrink)

Understandings of law and politics are intrinsically bound up with broader visions of the human condition. Sean Coyle argues for a renewed engagement with the juridical and political philosophies of the Western intellectual tradition, and takes up questions pondered by Aristotle, Plato, Augustine, Aquinas and Hobbes in seeking a deeper understanding of law, politics, freedom, justice and order. Criticising modern theories for their failure to engage with fundamental questions, he explores the profound connections between justice and order and raises (...) the neglected question of whether human beings in all their imperfection can ever achieve truly just order in this life. Above all, he confronts the question of whether the open society is the natural home of liberals who have given up faith in human progress, or whether liberal political order is itself the ideal society? (shrink)

I defend the extremist position that the fundamental ontology of the world consists of a vector in Hilbert space evolving according to the Schrödinger equation. The laws of physics are determined solely by the energy eigenspectrum of the Hamiltonian. The structure of our observed world, including space and fields living within it, should arise as a higher-level emergent description. I sketch how this might come about, although much work remains to be done.

We have a much better understanding of physics than we do of consciousness. I consider ways in which intrinsically mental aspects of fundamental ontology might induce modifications of the known laws of physics, or whether they could be relevant to accounting for consciousness if no such modifications exist. I suggest that our current knowledge of physics should make us skeptical of hypothetical modifications of the known rules, and that without such modifications it’s hard to imagine how intrinsically mental aspects could (...) play a useful explanatory role. Draft version of a paper submitted to Journal of Consciousness Studies, special issue responding to Philip Goff’s Galileo’s Error: Foundations for a New Science of Consciousness. (shrink)

A non-technical introduction to quantum mechanics, the Everett interpretation, and the emergence of spacetime.

In the revised and updated edition of this popular book, Sean Burke shows how the attempt to abolish the author is fundamentally misguided and philosophically ...

Effective Field Theory (EFT) is the successful paradigm underlying modern theoretical physics, including the "Core Theory" of the Standard Model of particle physics plus Einstein's general relativity. I will argue that EFT grants us a unique insight: each EFT model comes with a built-in specification of its domain of applicability. Hence, once a model is tested within some domain (of energies and interaction strengths), we can be confident that it will continue to be accurate within that domain. Currently, the Core (...) Theory has been tested in regimes that include all of the energy scales relevant to the physics of everyday life (biology, chemistry, technology, etc.). Therefore, we have reason to be confident that the laws of physics underlying the phenomena of everyday life are completely known. (shrink)

Some modern cosmological models predict the appearance of Boltzmann Brains: observers who randomly fluctuate out of a thermal bath rather than naturally evolving from a low-entropy Big Bang. A theory in which most observers are of the Boltzmann Brain type is generally thought to be unacceptable, although opinions differ. I argue that such theories are indeed unacceptable: the real problem is with fluctuations into observers who are locally identical to ordinary observers, and their existence cannot be swept under the rug (...) by a choice of probability distributions over observers. The issue is not that the existence of such observers is ruled out by data, but that the theories that predict them are cognitively unstable: they cannot simultaneously be true and justifiably believed. (shrink)

Population health has recently grown from a series of loosely connected critiques of twentieth-century public health and medicine into a theoretical framework with a corresponding field of research—population health science. Its approach is to promote the public’s health through improving everyday human life: affordable nutritious food, clean air, safe places where children can play, living wages, etc. It recognizes that addressing contemporary health challenges such as the prevalence of type 2 diabetes will take much more than good hospitals and public (...) health departments. -/- Blending philosophy of science/medicine, public health ethics and history, this book offers a framework that explains, analyses and largely endorses the features that define this relatively new field. Presenting a philosophical perspective, Valles helps to clarify what these features are and why they matter, including: searching for health’s “upstream” causes in social life, embracing a professional commitment to studying and ameliorating the staggering health inequities in and between populations; and reforming scientific practices to foster humility and respect among the many scientists and non- scientists who must work collaboratively to promote health. -/- Featuring illustrative case studies from around the globe at the end of all main chapters, this radical monograph is written to be accessible to all scholars and advanced students who have an interest in health—from public health students to professional philosophers. (shrink)

Cosmological models that invoke a multiverse - a collection of unobservable regions of space where conditions are very different from the region around us - are controversial, on the grounds that unobservable phenomena shouldn't play a crucial role in legitimate scientific theories. I argue that the way we evaluate multiverse models is precisely the same as the way we evaluate any other models, on the basis of abduction, Bayesian inference, and empirical success. There is no scientifically respectable way to do (...) cosmology without taking into account different possibilities for what the universe might be like outside our horizon. Multiverse theories are utterly conventionally scientific, even if evaluating them can be difficult in practice. (shrink)

In this clear, accessible guide, Sean Hand sets Levinas's work in its intellectual and social contexts and examines: the influence of phenomenology and Judaism ...

An incisive analysis of Deleuze's philosophy of eventsSean Bowden shows how the Deleuzian event should be understood in terms of the broader metaphysical thesis that substances are ontologically secondary with respect to events. He achieves this through a reconstruction of Deleuze's relation to the history of thought from the Stoics through to Simondon, taking account of Leibniz, Lautman, structuralism and psychoanalysis along the way.This exciting new reading of Deleuze focuses firmly on his approach to events. Bowden also examines and clarifies (...) a number of Deleuze's most difficult philosophical concepts, including sense, problematic Ideas and intensive individuation, and engages with material by Lautman and Simondon that has not yet been translated into English. (shrink)

Everything you need to know about Learning Theories in Early Childhood practice. This book explores the key theorists and theories that form the foundation of learning and development in early childhood. Building your own understanding and knowledge of children's learning, it then helps you develop the skills of translating theory into practice. How does this book support you? · The structure of the book mirrors your student learning journey, to compliment your course and seminar reading. · Parts 1 and 2 (...) help you develop your reflective and analytical skills through critical questions, photographs and discussion points. · Part 3 gives real life case studies to help you understand how the theories can be practically applied in settings to improve your own practice. (shrink)

We study the question of how to decompose Hilbert space into a preferred tensor-product factorization without any pre-existing structure other than a Hamiltonian operator, in particular the case of a bipartite decomposition into "system" and "environment." Such a decomposition can be defined by looking for subsystems that exhibit quasi-classical behavior. The correct decomposition is one in which pointer states of the system are relatively robust against environmental monitoring (their entanglement with the environment does not continually and dramatically increase) and remain (...) localized around approximately-classical trajectories. We present an in-principle algorithm for finding such a decomposition by minimizing a combination of entanglement growth and internal spreading of the system. Both of these properties are related to locality in different ways. This formalism could be relevant to the emergence of spacetime from quantum entanglement. (shrink)

According to public health data, the US Hispanic population is far healthier than would be expected for a population with low socioeconomic status. Ever since Kyriakos Markides and Jeannine Coreil highlighted this in a seminal 1986 article, public health researchers have sought to explain the so-called “Hispanic paradox.” Several candidate explanations have been offered over the years, but the debate goes on. This article offers a philosophical analysis that clarifies how two sets of obstacles make it particularly difficult to explain (...) the Hispanic paradox. First, different research projects define the Hispanic paradox phenomenon in substantially different ways. Moreover, using Bas van Fraassen’s pragmatic theory of explanation and Sean Valles’s extension of it with the concept of “phenomenon choice,” it also becomes clear that there are also multiple ways of explaining each individual definition of the phenomenon. A second set of philosophical and methodological challenges arises during any attempt to study “Hispanic” phenomena, with one key challenge being that the “Hispanic” panethnic concept was intentionally made vague as it was developed and popularized during the 1960s–1970s. After comparing this case with similar cases in the philosophical literature, the article concludes with observations on what makes this problem unique, particularly its ethical features. (shrink)

In this engaging study, Sean Illing examines the impact of Fyodor Dostoevsky and Friedrich Nietzsche on the development of Albert Camus's political philosophy. It innovatively attempt to offer a substantive examination of Camus's dialogue with Nietzsche and Dostoevsky. The connections among these writers have been discussed in the general context of modern thought or via overlapping literary themes. This project emphasizes the political dimensions of these connections. In addition to re-interpreting Camus's political thought, the aim is to clarify Camus's (...) struggle with transcendence and to bring renewed attention to his unique understanding of the relationship between nihilism, ideology, and political violence in the twentieth century. The book focuses on Camus's dialogue with Nietzsche and Dostoevsky for three reasons. First, these are the thinkers with whom Camus is most engaged. Indeed, the problems and themes of Camus's work are largely defined by Dostoevsky and Nietzsche; a full account of this dialogue will therefore enhance our understanding of Camus while also reinforcing the enduring importance of Nietzsche and Dostoevsky. Second, it allows a recasting of Camus' political philosophy as both a synthesis of and a response to Nietzsche and Dostoevsky's projects. Finally, this approach allows for a reassessment of Camus's broader political significance, which I contend has been undervalued in the literature. Ultimately, I argue that Camus remains among the most important moral and political voices of the twentieth century. Although limited, his philosophy of revolt offers a humane portrait of justice and articulates a meaningful alternative to the extremes of ideological politics. (shrink)

It is commonplace in discussions of modern cosmology to assert that the early universe began in a special state. Conventionally, cosmologists characterize this fine-tuning in terms of the horizon and flatness problems. I argue that the fine-tuning is real, but these problems aren't the best way to think about it: causal disconnection of separated regions isn't the real problem, and flatness isn't a problem at all. Fine-tuning is better understood in terms of a measure on the space of trajectories: given (...) reasonable conditions in the late universe, the fraction of cosmological histories that were smooth at early times is incredibly tiny. This discussion helps clarify what is required by a complete theory of cosmological initial conditions. (shrink)

We provide a derivation of the Born Rule in the context of the Everett (Many-Worlds) approach to quantum mechanics. Our argument is based on the idea of self-locating uncertainty: in the period between the wave function branching via decoherence and an observer registering the outcome of the measurement, that observer can know the state of the universe precisely without knowing which branch they are on. We show that there is a uniquely rational way to apportion credence in such cases, which (...) leads directly to the Born Rule. Our analysis generalizes straightforwardly to cases of combined classical and quantum self-locating uncertainty, as in the cosmological multiverse. (shrink)

Graduate-level textbook in general relativity.

From the publisher: "This book is a lucid and accessible companion to Plato’s Republic, throwing light upon the text’s arguments and main themes, placing them in the wider context of the text’s structure. In its illumination of the philosophical ideas underpinning the work, it provides readers with an understanding and appreciation of the complexity and literary artistry of Plato’s Republic. McAleer not only unpacks the key overarching questions of the text – What is justice? And Is a just life happier (...) than an unjust life? – but also highlights some fascinating, overlooked passages which contribute to our understanding of Plato’s philosophical thought.". (shrink)

As a growing area of research, the philosophy of time is increasingly relevant to different areas of philosophy and even other disciplines. This book describes and evaluates the most important debates in philosophy of time, under several subject areas: metaphysics, epistemology, physics, philosophy of language, philosophy of mind, cognitive science, rationality, and art. -/- Questions this book investigates include: Can we know what time really is? Is time possible, especially given modern physics? Must there be time because we cannot think (...) without it? What do we experience of time? How might philosophy of time be relevant to understanding the mind-body relationship or evidence in cognitive science? Can the philosophy of time help us understand biases toward the future and the fear of death? How is time relevant to art – and is art relevant to philosophical debates about time? Finally, what exactly could time travel be? And could time travel satisfy emotions such as nostalgia and regret? -/- Through asking such questions, and showing how they might be best answered, the book demonstrates the importance philosophy of time has in contemporary thought. Each of the book’s 10 chapters begins with a helpful introduction and ends with study questions and an annotated list of further readings. This and a comprehensive bibliography at the end of the book prepare the reader to go further in their study of the philosophy of time. (shrink)

Public reason liberals claim that legitimate rules must be justifiable to diverse perspectives. This Public Justification Principle threatens that failing to justify rules to reprehensible agents makes them illegitimate. Although public reason liberals have replies to this objection, they cannot avoid the challenge of powerful deceivers. Powerful deceivers trick people who are purportedly owed public justification into considering otherwise good rules unjustified. Avoiding this challenge requires discounting some failures of justification according to what caused people’s beliefs. I offer a conception (...) of public justification that accommodates these externalist considerations while positioning Public Reason Liberalism to provide insight into real cases of deception. (shrink)

When are inequalities in political power undemocratic, and why? While some writers condemn any inequalities in political power as a deviation from the ideal of democracy, this view is vulnerable to the simple objection that representative democracies concentrate political power in the hands of elected officials rather than distributing it equally among citizens, but they are no less democratic for it. Building on recent literature that interprets democracy as part of a broader vision of social equality, I argue that concentrations (...) of political power are incompatible with democracy, and with a commitment to social equality more generally, when they consist in some having greater arbitrary power to influence decisions according to their idiosyncratic preferences. A novel account of the relationship between power and social status clarifies the role of social equality in the justification of democracy, including a representative democracy in which public officials have more political power than ordinary citizens. (shrink)

This is the story of a seductive idea and its sobering consequences. The twentieth century brought a new cultural confidence in the social powers of invention – but also saw the advance of consumerism, world wars, globalisation and human-generated climate change. Techno-Fixers traces how passive optimism and active manipulations were linked to our growing trust in technological innovation. It pursues the evolving idea through engineering hubris, radical utopian movements, science fiction fanzines, policy-maker soundbites, corporate marketing, and consumer culture. It explores (...) how evangelists of technological fixes have proselytised their faith, and critically examines the examples and products of their followers. The new technological confidence mixed together beliefs that were simultaneously compelling and unsettling. As motor vehicles, electricity supplies and radio became part of modern life in the early decades of the century, it was hard to argue against the transformative effects and inevitability of such transitions. Like it or not, social consequences seemed to come inexorably with the Machine Age, the Space Age and the Information Age. This deterministic vision implied an ever more technological future with unavoidable social consequences. For many, innovative technologies promised appealing new lifestyles and powers. But for a narrower band of proponents – the first generation of technological fixers – wise engineering invention was touted as a guaranteed route to positive human benefits and societal progress. Socially-engaged engineers and designers argued that such improvements could be directed, hastened and amplified. These engineering adventurers argued that modern societies could be guided only by rational designers. They contended that adroit technological solutions could solve contemporary problems better than any traditional method, including economic initiatives, citizen education, political ideology, lifestyle changes, legal frameworks and moral guidance. Their seductive claims were tamed by more mainstream American enthusiasts, and eventually boiled down to the concept of the technological fix. Their shared confidence infused policy-makers, broadcasters and science popularisers. Trust in technological fixes shaped a new generation of managers and law-makers, engineers and educators, futurists and citizens – and continues to drive a new generation of techno-fixers today. This cultural wave, its promoters and detractors, have championed the promise and voiced concerns that we have inherited, still unresolved. This book tracks the hubristic influencers and weighs up the confidences and concerns associated with them: the dramatic potential for novel technologies to work alongside longer human traditions to meet our enduring ambitions – or to reshape society for the worse. (shrink)

Philosophy and model theory frequently meet one another. Philosophy and Model Theory aims to understand their interactions -/- Model theory is used in every ‘theoretical’ branch of analytic philosophy: in philosophy of mathematics, in philosophy of science, in philosophy of language, in philosophical logic, and in metaphysics. But these wide-ranging appeals to model theory have created a highly fragmented literature. On the one hand, many philosophically significant mathematical results are found only in mathematics textbooks: these are aimed squarely at mathematicians; (...) they typically presuppose that the reader has a significant background in mathematics; and little clue is given as to their philosophical significance. On the other hand, the philosophical applications of these results are then scattered across disconnected pockets of papers, separated by decades or more. -/- The first aim of Philosophy and Model Theory, then, is to consider the philosophical uses of model theory. On a technical level, we try to show how philosophically significant results connect to one another, and also to state the best version of a result for philosophical purposes. On a philosophical level, we show how similar dialectical situations arise repeatedly, across fragmented debates in varied philosophical areas. -/- The second aim of Philosophy and Model Theory, though, is to consider the philosophy of model theory. Model theory itself is rarely taken as the subject matter of philosophising (contrast this, say, with the philosophy of biology, or the philosophy of set theory). But model theory is a beautiful part of pure mathematics, and worthy of philosophical study in its own right. (shrink)

This book explores the important yet neglected relationship between the philosophy of time and the temporal structure of perceptual experience. It examines how time structures perceptual experience and, through that structuring, the ways in which time makes perceptual experience trustworthy or erroneous. -/- Sean Power argues that our understanding of time can determine our understanding of perceptual experience in relation to perceptual structure and perceptual error. He examines the general conditions under which an experience may be sorted into different (...) kinds of error such as illusions, hallucinations, and anosognosia. Power also argues that some theories of time are better than others at giving an account of the structure and errors of perceptual experience. He makes the case that tenseless theory and eternalism more closely correspond to experience than tense theory and presentism. Finally, the book includes a discussion of the perceptual experience of space and how tenseless theory and eternalism can better support the problematic theory of naïve realism. -/- Philosophy of Time and Perceptual Experience originally illustrates how the metaphysics of time can be usefully applied to thinking about experience in general. It will appeal to those interested in the philosophy of time and debates about the trustworthiness of experience. (shrink)

Is free will just an illusion? What is it in the brain that allows us to pursue our own actions and objectives? What is it about this organ that permits seemingly purposeful behaviour, giving us the impression we are free? This book takes a journey into the brain to examine what is about known voluntary behaviour, and why it can go wrong.

Propositionalism is the view that intentional attitudes, such as belief, are relations to propositions. Propositionalists argue that propositionalism follows from the intuitive validity of certain kinds of inferences involving attitude reports. Jubien (2001) argues powerfully against propositions and sketches some interesting positive proposals, based on Russell’s multiple relation theory of judgment, about how to accommodate “propositional phenomena” without appeal to propositions. This paper argues that none of Jubien’s proposals succeeds in accommodating an important range of propositional phenomena, such as the (...) aforementioned validity of attitude-report inferences. It then shows that the notion of a predication act-type, which remains importantly Russellian in spirit, is sufficient to explain the range of propositional phenomena in question, in particular the validity of attitude-report inferences. The paper concludes with a discussion of whether predication act-types are really just propositions by another name. (shrink)

In a democracy, citizens should have some control over how they are governed. If they do not participate directly in making policy, they ought to maintain control over the public officials who design policy on their behalf. Rule by Multiple Majorities develops a novel theory of popular control: an account of what it is, why democracy's promise of popular control is compatible with what we know about actual democracies, and why it matters. While social choice theory suggests there is no (...) such thing as a 'popular will' in societies with at least minimal diversity of opinion, the author argues that multiple, overlapping majorities can nonetheless have control, at the same time. After resolving this conceptual puzzle, the author explains why popular control is a realistic and compelling ideal for democracies, notwithstanding voters' low levels of information and other shortcomings. (shrink)

I ask whether what we know about the universe from modern physics and cosmology, including fine-tuning, provides compelling evidence for the existence of God, and answer largely in the negative.