Newton frequently characterized his methodology as distinctive and capable of achieving greater evidential support than that of his contemporaries, due to its mathematical character. Newton's pronouncements reflect a striking position regarding the role of mathematics in natural philosophy. We can give an initial characterization of his position by considering two questions central to seventeenth century debates about the applicability of mathematics. First, how are we to understand the distinctive universality and necessity of mathematical reasoning? One common way to preserve the (...) demonstrative character of mathematics was to restrict its domain, as far as possible, to pure abstractions. The subject matter of mathematics is then taken to be abstracted from the changeable natural world, consisting of quantity and magnitude themselves rather than the objects bearing quantifiable properties. Yet restricting the domain in this way leaves it difficult to see how mathematics relates to natural phenomena. How could the book of nature be written in a language of pure abstractions? Second, what is the proper role of mathematical reasoning in natural philosophy? Many followed Aristotle in consigning mathematics to a subordinate role. Mathematics could not fulfill the main aim of natural philosophy, namely to provide demonstrations reflecting the essences of things and nature's causal order. A related concern was also pressing for the mechanical philosophers: a merely mathematical demonstration fails to provide an intelligible mechanical explanation. The very title of Newton's masterpiece, Philosophiae Naturalis Principia Mathematica, would have been extremely perplexing: how could natural philosophy be based on mathematical principles? My aim is to articulate Newton's position regarding the mathematization of nature in response to these two concerns. (shrink)

We address the question of whether it is possible to operate a time machine by manipulating matter and energy so as to manufacture closed timelike curves. This question has received a great deal of attention in the physics literature, with attempts to prove no-go theorems based on classical general relativity and various hybrid theories serving as steps along the way towards quantum gravity. Despite the effort put into these no-go theorems, there is no widely accepted definition of a time machine. (...) We explain the conundrum that must be faced in providing a satisfactory definition and propose a resolution. Roughly, we require that all extensions of the time machine region contain closed timelike curves; the actions of the time machine operator are then sufficiently “potent” to guarantee that closed timelike curves appear. We then review no-go theorems based on classical general relativity, semi-classical quantum gravity, quantum field theory on curved spacetime, and Euclidean quantum gravity. Our verdict on the question of our title is that no result of sufficient generality to underwrite a confident “yes” has been proven. Our review of the no-go results does, however, highlight several foundational problems at the intersection of general relativity and quantum physics that lend substance to the search for an answer. (shrink)

We discuss the possibility to build and operate a time machine, a device that produces closed timelike curves. We specify the spacetime structure needed to implement a time machine and assess attempted no-go results against time machines in classical general relativity, semi-classical quantum gravity, quantum field theory on curved spacetime, and in Euclidean quantum gravity. Such no-go theorems for time machines would show that, under physically reasonable conditions, CTCs cannot develop in spacetimes initially free of these pathologies. Our review indicates (...) that an investigation of the prospects of achieving no-go results has not been entirely successful in establishing such generality. At the same time, the pursuit of chronology protection results has proved to be a fruitful way to probe the foundations of classical GTR and the interface between general relativity and quantum field theory. (shrink)

This leading anthology contains essays and cases written by some of the most influential figures in legal philosophy, representing the major theoretical positions in the field. Its primary focus is to relate traditional themes of legal philosophy to the concerns of modern society in a way that invigorates the former and illuminates the latter. This classic text is distinguished by its clarity and accessibility, balance of topics, balance of positions on controversial questions, topical relevance, imaginative use of cases and stories, (...) and the inclusion of only lightly edited or untouched legal classics. This revision is distinguished by its inclusion of new material on law and economics, international law, distributive justice, religion and freedom of expression, feminist legal theory, and critical race theory, as well as a greater emphasis on concrete legal problems. (shrink)

A number of recent papers have criticized what they call the dynamical interpretation of evolutionary theory found in Elliott Sober’s The Nature of Selection. Sober argues that we can think of evolutionary theory as a theory of forces analogous to Newtonian mechanics. These critics argue that there are several important disanalogies between evolutionary and Newtonian forces: Unlike evolutionary forces, Newtonian forces can be considered in isolation, they have source laws, they compose causally in a straightforward way, and they are intermediate (...) causes in causal chains. Here we defend and extend the forces analogy by arguing that each of these criticisms is based on a misunderstanding of Newtonian forces. Our discussion also has the interesting consequence that natural selection turns out to be more similar to forces such as friction and elastic forces rather than the more canonical gravitation. (shrink)

No More Dying: The Conquest of Aging and the Extension of Human Life. By Joel Kurtzman and Phillip Gordon. Prolongevity. By Albert Rosenfeld.

Biological evolution provides a creative fount of complex and subtle adaptations, often surprising the scientists who discover them. However, because evolution is an algorithmic process that transcends the substrate in which it occurs, evolution’s creativity is not limited to nature. Indeed, many researchers in the field of digital evolution have observed their evolving algorithms and organisms subverting their intentions, exposing unrecognized bugs in their code, producing unexpected adaptations, or exhibiting outcomes uncannily convergent with ones in nature. Such stories routinely reveal (...) creativity by evolution in these digital worlds, but they rarely fit into the standard scientific narrative. Instead they are often treated as mere obstacles to be overcome, rather than results that warrant study in their own right. The stories themselves are traded among researchers through oral tradition, but that mode of information transmission is inefficient and prone to error and outright loss. Moreover, the fact that these stories tend to be shared only among practitioners means that many natural scientists do not realize how interesting and lifelike digital organisms are and how natural their evolution can be. To our knowledge, no collection of such anecdotes has been published before. This paper is the crowd-sourced product of researchers in the fields of artificial life and evolutionary computation who have provided first-hand accounts of such cases. It thus serves as a written, fact-checked collection of scientifically important and even entertaining stories. In doing so we also present here substantial evidence that the existence and importance of evolutionary surprises extends beyond the natural world, and may indeed be a universal property of all complex evolving systems. (shrink)

A volume of papers inspired by the work of George E. Smith on confirmation and evidence in advanced science—from Newton's gravitation theory to the physics of molecules.

Cet article propose la première édition critique complète des Questions de Jean Buridan sur la Physiognomonie pseudo-aristotélicienne. L’introduction situe le texte dans la tradition physiognomonique médiévale, tout en indiquant les relations de la physiognomonie à la sémiologie, à l’astrologie et à la philosophie morale. L’édition se fonde sur trois manuscrits principaux, et un quatrième pour l’une des deux versions de la première question. Suit l’édition d’une version d’authenticité douteuse, qui recoupe en partie la version éditée, et de trois questions sur (...) la physiognomonie extraites d’un texte qui semble composite, formé de questions de Buridan ou d’esprit buridanien. (shrink)

Pierre Maquet1,2,6, Steven Laureys1,2, Philippe Peigneux1,2,3, Sonia Fuchs1, Christophe Petiau1, Christophe Phillips1,6, Joel Aerts1, Guy Del Fiore1, Christian Degueldre1, Thierry Meulemans3, André Luxen1, Georges Franck1,2, Martial Van Der Linden3, Carlyle Smith4 and Axel Cleeremans5.

We introduce a family of rules for adjusting one's credences in response to learning the credences of others. These rules have a number of desirable features. 1. They yield the posterior credences that would result from updating by standard Bayesian conditionalization on one's peers' reported credences if one's likelihood function takes a particular simple form. 2. In the simplest form, they are symmetric among the agents in the group. 3. They map neatly onto the familiar Condorcet voting results. 4. They (...) preserve shared agreement about independence in a wide range of cases. 5. They commute with conditionalization and with multiple peer updates. Importantly, these rules have a surprising property that we call synergy - peer testimony of credences can provide mutually supporting evidence raising an individual's credence higher than any peer's initial prior report. At first, this may seem to be a strike against them. We argue, however, that synergy is actually a desirable feature and the failure of other updating rules to yield synergy is a strike against them. (shrink)

In this paper, following an idea of Christophe Chalons. I propose a new kind of forcing axiom, the Maximality Principle, which asserts that any sentence varphi holding in some forcing extension $V^P$ and all subsequent extensions $V^{P\ast Q}$ holds already in V. It follows, in fact, that such sentences must also hold in all forcing extensions of V. In modal terms, therefore, the Maximality Principle is expressed by the scheme $(\lozenge \square \varphi) \Rightarrow \square \varphi$ , and is equivalent to (...) the modal theory S5. In this article. I prove that the Maximality Principle is relatively consistent with ZFC. A boldface version of the Maximality Principle, obtained by allowing real parameters to appear in φ, is equiconsistent with the scheme asserting that $V_\delta \prec V$ for an inaccessible cardinal δ, which in turn is equiconsistent with the scheme asserting that ORD is Mahlo. The strongest principle along these lines is $\square MP\!_{\!\!\!\!\!\!_{\!\!_\sim}}$ , which asserts that $MP\!_{\!\!\!\!\!\!_{\!\!_\sim}}$ holds in V and all forcing extensions. From this, it follows that $0^\#$ exists, that $x^\#$ exists for every set x, that projective truth is invariant by forcing, that Woodin cardinals are consistent and much more. Many open questions remain. (shrink)

The critical reception of Joel Chandler Harris's Uncle Remus Tales has often interpreted these animal fables as allegories of American slavery. Such an approach, however, risks what Steve Baker calls the ‘denial of the animal’, which displaces animal signifiers onto human signifieds. Through readings of ‘The Wonderful Tar-Baby Story’ and ‘How the Birds Talk’, I ask what it might mean to take seriously the numerous historical, political and philosophical questions posed by the animal ‘form’ that these characters assume, including (...) Heidegger's ontological differentiation between thing, animal and human, and Derrida's displacement of the conventional Cartesian distinction between animal reaction and human response. I argue that the racist equation of blacks with mimicry relies precisely on this dubious opposition. Remus's stories thus challenge our understandings of both race and language by showing how repetition and mimicry condition every ‘human’ response. (shrink)

Volume 20, Issue 1, February 2019, Page 99-102.

You and I are watching a spider crawl across the carpet. We are both aware of the spider, and aware that both are so aware. We are jointly attending to it. This collection of essays addresses a bewildering array of questions that arise regarding the notion of joint attention. How should joint attention be characterised in adults? In particular, how can we articulate the sense in which it is plausible to say that nothing is hidden from either participant in cases (...) of joint attention? What is the relationship between joint attention and the much discussed phenomenon of common, or mutual, knowledge? What account should be given of the development of the capacity for joint attention in children (and in non-human primates)? At what age is it correct to say that children are engaging in episodes of full blown joint attention? Relatedly, what is the relation between joint attention and pointing behaviour, gaze following and mutual affect regulation? Why is it that autistic children appear to exhibit a joint attention deficiency, and what might this tell us about autism, or about joint attention itself? Does the capacity for joint attention presuppose an understanding of the notion of attention, or more generally a subject of experience, and if so what is the relation between that understanding and the types of behaviour associated with joint attention? More generally, how does joint attention relate to our understanding of others? Finally, is the capacity for joint attention pivotal for the development of linguistic communication, or perhaps even a sense of objectivity—of the mind independence of the world? (shrink)

Hitchcock advances a diachronic Dutch Book argument (DDB) for a 1/3 answer to the Sleeping Beauty problem. Bradley and Leitgeb argue that Hitchcock’s DDB argument fails. We demonstrate the following: (a) Bradley and Leitgeb’s criticism of Hitchcock is unconvincing; (b) nonetheless, there are serious reasons to worry about the success of Hitchcock’s argument; (c) however, it is possible to construct a new DDB for 1/3 about which such worries cannot be raised.

Aping apes: Edgar Allan Poe's "The murders in the Rue Morgue" and Richard Wright's Native son -- Slavery's bestiary: Joel Chandler Harris's Uncle Remus tales -- Autoimmunity and ante-racism: Philip Roth's The human stain -- Ashamed of shame: J.M. Coetzee's Disgrace.

Despite the recent increase of interest in the work of Merleau-Ponty there is still a persistent tendency to overlook the uniqueness of the philosophical position he advances in Phenomenology of Perception. In this article I present a reading of Merleau-Ponty’s account of the phenomenological reduction that explains how it is original. I do this by contrasting his presentation of the reduction with that of the early Husserl, highlighting how his emphasis on the phenomenology of the ‘perceived world’ leads him to (...) reject Husserl’s conception of phenomenology as a ‘philosophical science,’ and the Kantian language in which the this account is framed. I go on to critically discuss the interpretations of the reduction advanced by Stephen Priest and Joel Smith as examples of readings that fail to fully grasp Merleau-Ponty’s account of the ‘natural attitude’ as resting on the inherent objectivizing structure that is built into perception itself. The way that these authors misinterpret Merleau-Ponty helps to make maximally clear the profound philosophical significance that he places on the phenomenology of the ‘perceived world’. (shrink)

Un nouveau type de paternalisme s’est développé ces dix dernières années sous l’impulsion de travaux innovateurs de certains économistes comportementaux. Ce nouveau type de paternalisme, que j’appelle ici paternalisme comportemental, s’est popularisé grâce à la théorie du « coup de pouce » de Richard Thaler et Cass Sunstein et remet en question l’idée selon laquelle le paternalisme serait inacceptable dans nos sociétés. L’objet de cet article est d’évaluer sa légitimité morale sans, néanmoins, se limiter à son supposé libertarianisme. Les résultats (...) de mon investigation peuvent se résumer ainsi : bien que le paternalisme comportemental soit généralement reconnu pour son caractère libéral, il ne satisfait pas en fait les conditions de ce que Joel Feinberg nomme le « paternalisme mou ». Néanmoins, il possède des qualités morales sous-estimées par ses partisans. Il résiste d’abord très bien à la critique égalitariste d’Elizabeth Anderson. A la différence des formes traditionnelles de paternalisme, le paternalisme comportemental n’est pas dégradant et n’est pas ostracisant. Le paternalisme comportemental, enfin, peut se targuer d’être véritablement altruiste, à la condition, cependant, d’abandonner les hypothèses principales de Sunstein et Thaler. Classification JEL : A12, D64, I18, I31, K32. (shrink)

Among early modern Christian kabbbalists such as Pico della Mirandola and Christian Knorr von Rosenroth, Kabbalah counts as part of philosophia perennis and esoteric Jewish philosophy. Bruckers differentiation between Kabbalah as esoteric Jewish philosophy and Maimonides as exoteric Jewish philosophy is taken up by Tiedemann and Hegel, and is well known to Schelling and Molitor. In opposition to this taxinomy among Christian philosophers, Jewish philosophers and scholars of »Wissenschaft des Judentums« like Salomon Munk, Manuel Joel, Hermann Cohen or Julius (...) Guttmann exclude Kabbalah from the canon of Jewish philosophy proper, exemplified by Yehuda Halevi or Maimonides. It is only after World War I that Gershom Scholem inaugurates the modern research of Kabbalah as »mysticism«, juxtaposed to philosophy and to the rationalistic traditions inJudaism. (shrink)

At least since Locke, philosophers and psychologists have usually held that concepts arise out of sensory perceptions, thoughts are built from concepts, and language enables speakers to convey their thoughts to hearers. Christopher Gauker holds that this tradition is mistaken about both concepts and language. The mind cannot abstract the building blocks of thoughts from perceptual representations. More generally, we have no account of the origin of concepts that grants them the requisite independence from language. Gauker's alternative is to (...) show that much of cognition consists in thinking by means of mental imagery, without the help of concepts, and that language is a tool by which interlocutors coordinate their actions in pursuit of shared goals. Imagistic cognition supports the acquisition and use of this tool, and when the use of this tool is internalized, it becomes the very medium of conceptual thought. (shrink)

This book originated at a small and informal workshop held in December of 1992 in Idyllwild, a relatively secluded resort village situated amid forests in the ...

Willard V. Quine’s 1951 article, “Two Dogmas of Empiricism” (Two Dogmas) was taken to be revolutionary because it rejects the analytic-synthetic distinction and the thesis that empirical statements are confirmed individually rather than holistically. The present chapter, however, argues that the overcoming of modern philosophy already included the overcoming of these theses by Hegelians, pragmatists and two critics of Hegelianism and pragmatism, Grace and Theodore de Laguna. From this perspective, Two Dogmas offers a Hegelian epistemology that was already superseded in (...) 1910. The perspective is largely based on the de Lagunas’ 1910 book Dogmatism and Evolution: Studies in Modern Philosophy. The de Lagunas’ book also helps to make clear that the real revolution Two Dogmas participated in was the marginalisation of their work and that of other speculative philosophers. Grace de Laguna surely recognised much of this when she stood opposite Quine as he first presented Two Dogmas. (shrink)

This book offers a vigorous and constructive challenge to relativism by examining a wide range of anti-realist theories, and in response offering a variety of arguments amounting to a strong defence of critical realism in the natural and social sciences.

This fully revised and updated edition of God, Humanity and the Cosmos is an essential companion to the field, with exercises for the student, a comprehensive bibliography, and suggestions for further reading.

There is an important family of semantic notions that we apply to thoughts and to the conceptual constituents of thoughts - as when we say that the thought that the Universe is expanding is true. Thought and World presents a theory of the content of such notions. The theory is largely deflationary in spirit, in the sense that it represents a broad range of semantic notions - including the concept of truth - as being entirely free from substantive metaphysical and (...) empirical presuppositions. At the same time, however, it takes seriously and seeks to explain the intuition that there is a metaphysically or empirically 'deep' relation linking thoughts to reality. Thus, the theory represents a kind of compromise between deflationism and versions of the correspondence theory of truth. This book will appeal to students and professionals interested in the philosophy of logic and language. (shrink)

Heidegger's connection with Nazism is well known and has been exhaustively debated. But we need to understand better why Heidegger believed National Socialism to be the best cure for the ills of modern society. In this book Christopher Rickey examines the internal logic of Heidegger's ideas to explain how they led him to become a powerful critic of liberalism and a Nazi supporter. Key to Rickey's interpretation is the radically antinomian conception of religiosity he finds at the core of (...) Heidegger's challenge to modernity. Heidegger responds to the crisis of modernity with a philosophy attuned to the fundamental need for humans to live with the proper stance toward the divine. Inspired by Lutheran and mystical theology, Heidegger outlines an essentially religious conception of authentic human being. Like his radical Lutheran forerunners, Heidegger politicizes the radical strains of Luther's theology to create a potent revolutionary brew: the revolution of the saints. Rickey traces out the ways in which these currents fundamentally shape Heidegger's thought: the Lutheran background to his critique of modern science and the technological rationality it spawns; his transformation of Aristotle's prudential conception of practical wisdom into the total revelation of being that lays the basis for revolutionary political action; and his mystical and sectarian understanding of authentic community. Rickey shows how this political-theological vision forms the basis of Heidegger's concrete political action, and concludes with an analysis of the fundamental problems this vision poses to our political thinking today. (shrink)

The first comprehensive collection of the work of Richard Rorty, The Rorty Reader brings together the influential American philosopher’s essential essays from over four decades of writings. Offers a comprehensive introduction to Richard Rorty's life and body of work Brings key essays published across many volumes and journals into one collection, including selections from his final volume of philosophical papers, Philosophy as Cultural Politics ) Contains the previously unpublished essay, “Redemption from Egotism” Includes in-depth interviews, and several revealing autobiographical pieces (...) Represents the fullest portrait available today on Rorty’s relationship with American pragmatism and the trajectory of his thought. (shrink)