Can you rationally double-check what you already know? In this paper, I argue that you can. Agents can know that something is true and rationally double-check it at the very same time. I defend my position by considering a wide variety of cases where agents double-check their beliefs to gain epistemic improvements beyond knowledge. These include certainty, epistemic resilience, and sensitivity to error. Although this phenomenon is widespread, my proposal faces two types of challenges. First, some have (...) defended ignorance norms, on which agents are only allowed to inquire about things they don’t already know. Second—motivated by strong conceptions of belief or pragmatic encroachment—some have argued that doublechecking destroys knowledge. I argue that these competing views fail to capture both the epistemic value of double-checking and the many reasons why agents might double-check. Moreover, they rely on overly strong assumptions about what inquiry, knowledge, or belief requires. Finally, I marshal linguistic data in favor of the compatibility of knowledge and doublechecking. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Ideas 62.2 (2001) 233-244 [Access article in PDF] Joseph Butler on Forgiveness: A Presupposed Theory of Emotion Paul A. Newberry "I forgive him as far as humanity can forgive. I would do him no injury." Mrs. Dale in Anthony Trollope's The Last Chronicle of Barset, 1867. In the recent philosophical literature on forgiveness, a topic of great concern is the proper characterization of forgiveness (...) or, said in another way, the proper definition of forgiveness. Forgiveness has been defined in a multitude of ways: among others, as the overcoming of resentment, the overcoming of moral hatred, as a speech act, and as forbearance. Of these definitions the one that enjoys anything close to a kind of consensus is that forgiveness is the overcoming of resentment. This position, with various qualifications and stipulations, is held by numerous philosophers, among them R. S. Downie, Kathleen Dean Moore, A. C. Ewing, Martin Hughes, and Jeffrie Murphy. 1 The progenitor of this view is widely acknowledged to be Joseph Butler, who wrote sermons on both resentment and forgiveness nearly three hundred years ago. 2In this paper I will demonstrate that the attribution of this definition of forgiveness to Butler is in error: he did not define forgiveness as the overcoming of resentment but rather as the checking of revenge, or forbearance. Aside from the goal of setting the historical record straight, I have a broader and more important purpose in this essay. One sees that such an interpretation of Butler must provoke two questions. First, why did Butler define forgiveness only in terms of how one is to act, therefore paying no attention, apparently, to how one feels? Second, how do Murphy and the others incorrectly attribute this view to Butler? [End Page 233] I contend that these answers can be addressed if we take a close look at the role of emotions and theories of emotion in the definitions offered by Butler and Murphy (as representative of the group). I will attempt to establish that Butler's definition of forgiveness as the checking of revenge presupposes a feeling theory of emotions which is distinct from and in conflict with--in many ways pertinent to forgiveness--the cognitive theory of emotions presupposed by Murphy's definition. If I am successful in showing this claim to be plausible, then I will also have demonstrated that more attention needs to be paid to theories of emotion underlying work on forgiveness. But since the misinterpretation of Butler is widespread among contemporary writers on forgiveness and not peculiar to Murphy, my claim is a gesture toward what I take to be a problem greater than mere misinterpretation. Given the fact that a feeling theory of emotions was the predominant theory among philosophers in Butler's day until the end of the nineteenth century and that cognitive theory is currently a dominant philosophical theory, I fear that what has happened is that modern commentators on Butler are unaware that they are imposing their own presupposed theories of emotion onto a text from an earlier historical period.The plan of the paper is first to show by careful exegesis how Butler characterizes forgiveness and then, after a brief sketch of the difference between feeling theory and cognitive theory, to demonstrate how Butler's definition presupposes the former and Murphy's the latter. I will conclude with a few remarks about the import of these findings.Joseph Butler's treatment of forgiveness is found in a collection of his sermons first published as Fifteen Sermons in 1726. 3 Included in this collection are two sermons of primary importance to the topic of forgiveness: a sermon on resentment (Sermon VIII) and a subsequent sermon on forgiveness (Sermon IX). An understanding of Butler's definition of forgiveness properly begins with his sermon on resentment in which he distinguishes between two different kinds of resentment. One kind he calls "hasty and sudden" resentment, the other "settled and deliberate" resentment. 4 Hasty and sudden resentment is generally (and naturally) the result of sudden hurt or violence. 5... (shrink)

In their chapter “Knowledge, Practical Adequacy, and Stakes,” Charity Anderson and John Hawthorne present several challenges to the doctrine of pragmatic encroachment. In this brief reply to their chapter two things are aimed at. First, the chapter argues that there is a sense in which their case against pragmatic encroachment is a bit weaker, and another sense in which that case is much stronger, than Anderson and Hawthorne’s own argument would suggest. Second, the chapter highlights and then builds upon (...) their extremely interesting reflections on one sort of practical matter that has not received proper attention in the literature: the epistemic significance of double-checking. This is done with an eye towards pointing in the direction of further work. (shrink)

Confidence ratings have often been integrated into reasoning and intelligence tasks as a means for assessing meta-reasoning processes. Although it is often assumed that eliciting these judgements throughout reasoning tasks has no effect on the underlying performance outcomes, this is yet to be established empirically. The current study examines whether eliciting CR from participants during a fluid-reasoning task influences their performance and how this effect is moderated by their initial self-confidence in their own reasoning abilities. In a first experiment, we (...) found that participants performing CR during Raven's Progressive Matrices significantly outperformed a control group who did not provide ratings. Additionally, a second experiment demonstrated that CR only facilitated performance in participants who have a high level of initial self-confidence in their reasoning ability, whereas they were detrimental to participants low in self-confidence. (shrink)

Abstract This paper contrasts two views on the ethics of belief, the absolutist position that adopting self?serving epistemic strategies is always morally wrong, and the holist position that non?epistemic factors may legitimately be consulted whenever we adopt epistemic strategies. In the first section, the absolutist view is shown to be untenable because of the holistic nature of moral questions in general. In the second section, the nagging appeal of the absolutist position is explored. An account of our ambivalence regarding (...) the absolutist view is suggested in terms of the conflict between our acceptance of our psychological needs and wants and a wish to overcome them. Five types of considerations that contribute to this conflict are given. (shrink)

In Globalization and Justice, Kai Nielsen brings his distinctive and passionate voice and considerable philosophical abilities to one of the pressing issues of our time: Is justice possible in our increasingly globalized world? Nielsen argues that it is, though the demands of justice are great, the challenges substantial, and the odds very long. Without a clear philosophical understanding of justice and a firm and focused political will, Nielsen maintains, we are likely to have globalization without justice. This is surely correct.

In his Between Two Worlds: A Reading of Descartes’s Meditations, John Carriero presents a sustained and sensitive interpretation of this seminal work of modern philosophy. The two worlds of the title are the worlds of Scholastic philosophy on the one side, and of the mechanical philosophy on the other, and it is Carriero’s argument that the Meditations are most helpfully understood against the background of Thomistic Scholasticism. In particular, Carriero shows that there is a deep difference between St. Thomas and (...) Descartes, first, concerning philosophical theology and the nature and possibility of our cognition of the divine essence, and second, concerning the nature of human cognition. What Carriero is ultimately trying to argue against is a picture of Descartes according to which he is fundamentally engaged in an anti-skeptical project and at the same time responsible for a crass and superficial form of dualism.While the book is organized simply, with one chapter devoted to each of the Descartes’s six Meditations, it is philosophically very rich and will reward careful study. Indeed, it is rare for a book to be devoted to such a close reading of a single text at this high level. Certainly, there are many “Introductions” for undergraduates, but few works written for advanced graduate students and professional philosophers cover a text so closely and so subtly. Carriero’s book demonstrates the virtues of this kind of text-immanent. (shrink)

In the main article on Leibniz, it was claimed that Leibniz's philosophy can be seen as a reaction to the Cartesian theory of corporeal substance and the necessitarianism of Spinoza and Hobbes. This entry will address this second aspect of his philosophy. In the course of his writings, Leibniz developed an approach to questions of modality—necessity, possibility, contingency—that not only served an important function within his general metaphysics, epistemology, and philosophical theology but also has continuing interest today. Indeed, it (...) has.. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 39.3 (2001) 440-442 [Access article in PDF] Reinhard Lauth. Descartes ' Konzeption des Systems der Philosophie. Stuttgart (Bad Cannstatt): Frommann-Holzboog, 1998. Pp. x + 227 pp. Cloth, DM 64.00. Reinhard Lauth's Descartes ' Konzeption des Systems der Philosophie is an interesting addition to the literature on Descartes. Written by a renowned scholar of German Idealism, it does not represent an attempt to respond (...) to scholars of Descartes, to take part in the debate regarding aspects of Descartes's philosophy, nor to explain the role of Descartes's thought in the tumultuous seventeenth century, but rather to explain to scholars of German Idealism why Descartes should be considered the first and one of the greatest transcendental philosophers. It is no accident that in the index we find close to 50 references each to Kant and Fichte, while Descartes's important "rationalist" comrades, Spinoza and Leibniz, receive half as much attention; nor is it an accident that the first and last philosopher mentioned in the book is Fichte.Lauth's book is in the tradition of Gueroult's monumental Descartes selon l ' ordre des raisons (Paris, 1968, 2nd edition) and, as the title indicates, the subject of the book is Descartes's philosophy as a system, not as a collection of independent theses about various philosophical problems. However, unlike Gueroult, who concentrated on an [End Page 440] analysis of the Meditations, Lauth draws extensively on the Rules for the Direction of the Mind, Discourse on Method, Meditations, and Descartes's correspondence. That Descartes viewed philosophy as ideally constituting a system of human knowledge should not come as news to anyone who recalls Descartes's claim in the Preface to the Principles of Philosophy that all of philosophy is like a tree whose roots are metaphysics, trunk physics, and branches medicine, mechanics, and morals, or his claim in the Preface to the Meditations that there is a clear order of argumentation or reasons and that his goal is to lay bare the foundations of philosophy. How exactly Descartes's philosophy is to constitute a system is the trickier question that is Lauth's concern.According to Lauth, the order of reasons that one finds expressed in Descartes's first philosophy is not simply a series of biographical events, filling a psychological need in Descartes (cf. Alquié, La Découverte métaphysique de l ' homme chez Descartes [Paris, 1966]), but rather the "systematic path of the cogito itself" (X). And Lauth attempts to show that there is something inexorable in the way that conclusions about the world from the point of view of the thinking subject are made and follow from one another. This takes him along the well-known path of the Meditations: from the existence of the self, to the nature of the self, to the existence and nature of God, to the external world, and finally to the relation of mind and body. And here two interesting observations on Lauth's part should be singled out. First, Lauth does an admirable job in intimating the tension regarding the places of the thinking subject and God as the supreme principles in Descartes's system. On the one hand, it would seem that the thinking subject should be the highest principle in Descartes's philosophy insofar as its existence is the first thing known; but, according to Lauth, it cannot be the highest principle because it does not contain the principle of its own existence (76). On the other hand, if we claim that God is the highest principle then we must recognize that a system following from this principle must fail insofar as genuine knowledge of God surpasses the bounds of our finite, human knowledge (99-100). Second, in claiming that Descartes was a "transcendental philosopher," Lauth reminds us of the extent to which Descartes is concerned with the bounds of human knowledge as determinable from the thinking subject itself.While this work contains many useful insights—especially for those scholars of German Idealism who are looking for new ways of reflecting on their subject—it has... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Kant’s Transcendental Proof of RealismBrandon C. LookKenneth R. Westphal. Kant’s Transcendental Proof of Realism. New York: Cambridge University Press, 2004. Pp. x + 299. Cloth, $80.00.Westphal's book is a rich and exciting contribution to the field of Kant studies. Its claims run counter to much contemporary discussion of Kant's theoretical philosophy and indeed challenge some of Kant's fundamental doctrines, but the arguments are very compelling and therefore likely (...) to force us to rethink both the Critique of Pure Reason [CPR] and Kant's relevance to contemporary epistemology.The central point of this work is that, if we follow Kant's injunction to engage in reflection on our cognitive capacities, then we will be led not to Kantian transcendental idealism but to an unqualified realism about objects and events in space and time. The book's first three chapters are devoted to analyzing Kant's methodology and the much-overlooked idea of transcendental affinity. Westphal focuses on the Kantian duty of engaging in "transcendental reflection," which is "the action through which I make the comparison of representations in general with the cognitive power in which they are situated, and through which I distinguish whether they are to be compared with one another as belonging to pure understanding or to sensible intuition" (CPR, A 261/B 317). And he adds to this the more general methodological obligation of "epistemic reflection," or the duty to determine precisely our cognitive capacities and incapacities. If, then, we reflect on our representations, their origins in sensibility and the understanding, and on our powers to know things of ourselves and the world in general, then certain puzzles arise—puzzles that were confronted by Kant (and Hume and Hegel) but that have not received the attention they have deserved. Chief among these puzzles is our ability to identify single objects and events and track them in space through time. But, as Westphal is keen to point out, identifying any particular over time requires that we be able to re-identify that particular. Now, while this puzzle is addressed by Kant in the Transcendental Deduction and Analogies of Experience, it is important to see that there is a material condition necessary for the possibility of self-conscious experience of the world that is not fleshed out in great detail by Kant and seems to be completely overlooked in the literature on Kant, namely, "the presupposition of diversity in nature" and the homogeneity of its objects among themselves (CPR, A 657/B 685). In other words, the fact that we are able to associate our various sensations with each other at all (and thereby identify and re-identify objects) is due to their "transcendental affinity." And it is Westphal's contention that "on Kant's own principles, the transcendental affinity of the manifold of sensory intuition can only be reconstructed, but not constructed, by intellectual syntheses of the understanding" (91). Therefore, pace Kant, who held that only his transcendental idealism could explain the possibility of experience, Westphal argues that transcendental idealism runs afoul of many of Kant's own arguments and observations in the Transcendental Aesthetic and Transcendental Analytic and, more important, that transcendental affinity provides grounds for "realism sans phrase" (the author's phrase) about objects and events in space and time, and for the view that our mental states are determined by external objects. As Westphal puts it in his conclusion: "Kant's analysis of transcendental affinity is in fact a transcendental argument for mental content externalism" (266). [End Page 665]The second part of Westphal's argument revolves around a detailed examination of Kant's theses about transeunt causality and the nature of matter as expressed not only in the Critique of Pure Reason, but also in the Metaphysical Foundations of Natural Science and the Opus postumum. Roughly the problem is this: in order to have an adequately grounded metaphysics of nature, Kant needs not only the results of the Analogies of Experience, the transcendental causal thesis that every event has a cause, but also the metaphysical causal thesis that every physical event has an external physical cause. But, according to Westphal, in the Metaphysical Foundations... (shrink)

The author analyses the problem of the communication from the epistemological point of view, noting that the interest to the theme is obviously determined by the enormous ambiguity and by the disciplinary vagueness of the communication's notion itself. It is argued that it is the philosophical conceptualization of the communication that allows in a certain sense to «save» philosophy itself. The author notes that the philosophical studies of communication as if return the relevance to the classical philosophical problems: to the (...) (communicative) sphere, (communicative) time, (social) causality, (collective) subject and object, filling them with the meaningful characteristics and testing their concepts by the experience of the functioning of real society and communication. He concludes that the epistemological content of the concept of communication is comes together with several aspects of human cognition. The first aspect has to do with the dimensions for defining the adequacy for determination of the statement made by the Other (i.e. the other participant), given that the content of the Other's consciousness is unavailable. The second aspect is related to the principle of a double purpose of any communication: on the one hand, integration and mutual understanding and, on the other, informational description of the subject of the message. The third aspect is that communication is based on the most important epistemological distinction between knowledge and ignorance, i.e. on the predominance of any information to one participant of the communication and of its uncertainty to the other participant, and that such a situation actually conditions the formation of communication systems, as well as of a wide variety of forms of sociality. The author also addresses the problem of whether contemporary media make communication at all possible since they decrease the impact that the secrecy of the Other's consciousness has on communication by triggering a communicative act. (shrink)

In most theories of the quantum measurement process changes in an observer’s perception of a state can take place without forces, as for example if a state is prepared in an eigenstate of \ but \ is measured. In the “special state” theory any change in wave function requires forces. This allows experimental tests to distinguish these ideas and in the present article two examples of such tests are considered. The first is a kind of double Stern–Gerlach experiment, the (...) second a check for angular momentum changes in a polarizer. (shrink)

In most theories of the quantum measurement process changes in an observer’s perception of a state can take place without forces, as for example if a state is prepared in an eigenstate of \ but \ is measured. In the “special state” theory any change in wave function requires forces. This allows experimental tests to distinguish these ideas and in the present article two examples of such tests are considered. The first is a kind of double Stern–Gerlach experiment, the (...) second a check for angular momentum changes in a polarizer. (shrink)

It is common in the history of philosophy to view the Leibniz-Clarke correspondence as essentially a debate between Leibniz and Newton. According to this view, Clarke was merely Newton’s mouthpiece, or perhaps his amanuensis taking dictation from the “incomparable Mr. Newton” as Newton sought to demolish the philosophical views of his archenemy, Leibniz. In his new book, however, Ezio Vailati argues that we abandon this simplified view, first, because there is little historical evidence proving Newton’s role in the correspondence, and (...) second, because this common view does Clarke himself, described by Voltaire as “a veritable thinking machine”, a great injustice. Vailati’s approach is, then, to consider “the correspondence essentially as a confrontation between Leibniz and Clarke, the most important exponent of Newtonianism”. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 40.3 (2002) 399-400 [Access article in PDF] Book Review Radical Enlightenment: Philosophy and the Making of Modernity, 1650-1750 Jonathan I. Israel. Radical Enlightenment: Philosophy and the Making of Modernity, 1650-1750. Oxford: Oxford University Press, 2001. Pp. xx + 810. Cloth, $45.00. Jonathan Israel's goal in this excellent book is to show that we cannot fully understand the high Enlightenment—the age of the philosophes (...) and the French Revolution—without looking at the work and influence of that "most unusual and loneliest thinker" (to borrow a phrase from a later admirer): Spinoza. Israel gives us a detailed and nuanced account of the history of ideas in early modern Europe, focusing especially on the generations before Voltaire and Rousseau. Not only does Israel describe the general struggle between Enlightenment ideas and the status quo ante, he also discusses in depth the tensions between "mainstream" Enlightenment and its "radical" wing. More precisely and importantly, Israel argues that the high Enlightenment ought to be seen as the outcome of "a four-way conflict between Newtonians, neo-Cartesians, Leibnitio-Wolffians, and radicals" (715), a conflict that took place across Europe and whose dust had essentially settled by 1740. Thus, Israel is arguing against the view that the French philosophes were the dominant force in the intellectual world that led to the Revolution, against the view that Newton and Locke played a dominant role throughout Europe, and against the view that there were several distinct enlightenments with different national characters.What is meant by the term "radical Enlightenment"? According to Israel, radical Enlightenment comprises several views and tendencies in the realms of science, theology, and politics: in scientific matters, it embraces naturalism, mechanism, and materialism; in theological matters, it denies a moral order to the universe, a providential god, the Judeo-Christian(-Islamic) account of creation, miracles, and reward and punishment in an afterlife, and is critical of the idea of the divine inspiration of religious texts; in political matters, it unequivocally supports republicanism, even democracy; and, in all matters, it argues for the necessity of toleration and the "freedom to philosophize." For those who know Spinoza's philosophy, this ought to sound familiar.Israel's book is divided into five parts. In the first, he sketches the general intellectual milieu of early seventeenth-century Western Europe. The second part describes Spinoza and his circle and the philosophy of the Ethics and Tractatus Theologico-Politicus. In Parts III and IV, Israel discusses the immediate reactions to Spinozism, the varieties of radical Enlightenment made possible by Spinoza, and the "intellectual counter-offensive" to naturalism, materialism, atheism, and republicanism. Part V concerns the "clandestine progress" of Spinozism and radical ideas in different countries after the banning and censorship of so many radical works, and, in a brief epilogue, Israel argues that it is Rousseau who effectively reconciled mainstream Enlightenment thought with its radical relative. This is a lot of territory to cover, and Israel covers it admirably, offering illuminating discussions of other key figures of the time: Leibniz, Malebranche, Bossuet, Locke, Bayle, Wolff, Vico, Diderot, and La Mettrie. Another strength of Israel's book is, however, the extent to which he portrays thinkers (some radicals, some reactionaries) and works that are less familiar to most working in the field today. We learn not only about such figures as Bredenburg, Fontenelle, Le Clerc, Leenhof, and Boulainvilliers, but also, in a charming but unfortunately short chapter, about Spinozistic novels from the eighteenth century.As someone trained in a philosophy department to work on the history of philosophy, I felt uneasy in one respect with this book. While Israel emphasizes the battles between philosophies and ideas, he does not concern himself so much with the process of doing philosophy. That is, if there is a failing in this book, it is that we are presented with descriptions of philosophical views without always being given an adequate account of why such views were held by individual thinkers or how the theses of the radical Enlightenment, say, are related to each... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Kant’s Transcendental Proof of RealismBrandon C. LookKenneth R. Westphal. Kant’s Transcendental Proof of Realism. New York: Cambridge University Press, 2004. Pp. x + 299. Cloth, $80.00.Westphal's book is a rich and exciting contribution to the field of Kant studies. Its claims run counter to much contemporary discussion of Kant's theoretical philosophy and indeed challenge some of Kant's fundamental doctrines, but the arguments are very compelling and therefore likely (...) to force us to rethink both the Critique of Pure Reason [CPR] and Kant's relevance to contemporary epistemology.The central point of this work is that, if we follow Kant's injunction to engage in reflection on our cognitive capacities, then we will be led not to Kantian transcendental idealism but to an unqualified realism about objects and events in space and time. The book's first three chapters are devoted to analyzing Kant's methodology and the much-overlooked idea of transcendental affinity. Westphal focuses on the Kantian duty of engaging in "transcendental reflection," which is "the action through which I make the comparison of representations in general with the cognitive power in which they are situated, and through which I distinguish whether they are to be compared with one another as belonging to pure understanding or to sensible intuition" (CPR, A 261/B 317). And he adds to this the more general methodological obligation of "epistemic reflection," or the duty to determine precisely our cognitive capacities and incapacities. If, then, we reflect on our representations, their origins in sensibility and the understanding, and on our powers to know things of ourselves and the world in general, then certain puzzles arise—puzzles that were confronted by Kant (and Hume and Hegel) but that have not received the attention they have deserved. Chief among these puzzles is our ability to identify single objects and events and track them in space through time. But, as Westphal is keen to point out, identifying any particular over time requires that we be able to re-identify that particular. Now, while this puzzle is addressed by Kant in the Transcendental Deduction and Analogies of Experience, it is important to see that there is a material condition necessary for the possibility of self-conscious experience of the world that is not fleshed out in great detail by Kant and seems to be completely overlooked in the literature on Kant, namely, "the presupposition of diversity in nature" and the homogeneity of its objects among themselves (CPR, A 657/B 685). In other words, the fact that we are able to associate our various sensations with each other at all (and thereby identify and re-identify objects) is due to their "transcendental affinity." And it is Westphal's contention that "on Kant's own principles, the transcendental affinity of the manifold of sensory intuition can only be reconstructed, but not constructed, by intellectual syntheses of the understanding" (91). Therefore, pace Kant, who held that only his transcendental idealism could explain the possibility of experience, Westphal argues that transcendental idealism runs afoul of many of Kant's own arguments and observations in the Transcendental Aesthetic and Transcendental Analytic and, more important, that transcendental affinity provides grounds for "realism sans phrase" (the author's phrase) about objects and events in space and time, and for the view that our mental states are determined by external objects. As Westphal puts it in his conclusion: "Kant's analysis of transcendental affinity is in fact a transcendental argument for mental content externalism" (266). [End Page 665]The second part of Westphal's argument revolves around a detailed examination of Kant's theses about transeunt causality and the nature of matter as expressed not only in the Critique of Pure Reason, but also in the Metaphysical Foundations of Natural Science and the Opus postumum. Roughly the problem is this: in order to have an adequately grounded metaphysics of nature, Kant needs not only the results of the Analogies of Experience, the transcendental causal thesis that every event has a cause, but also the metaphysical causal thesis that every physical event has an external physical cause. But, according to Westphal, in the Metaphysical Foundations... (shrink)

We discuss the probabilistic analysis of explanatory power and prove a representation theorem for posterior ratio measures recently advocated by Schupbach and Sprenger. We then prove a representation theorem for an alternative class of measures that rely on the notion of relative probability distance. We end up endorsing the latter, as relative distance measures share the properties of posterior ratio measures that are genuinely appealing, while overcoming a feature that we consider undesirable. They also yield a telling result concerning formal (...) accounts of explanatory power versus inductive confirmation, thereby bridging our discussion to a so-called no-miracle argument. (shrink)

In earlier work, I predicted that we would probably not be able to determine the colors of the dinosaurs. I lost this epistemic bet against science in dramatic fashion when scientists discovered that it is possible to draw inferences about dinosaur coloration based on the microstructure of fossil feathers (Vinther et al., 2008). This paper is an exercise in philosophical error analysis. I examine this episode with two questions in mind. First, does this case lend any support to epistemic optimism (...) about historical science? Second, under what conditions is it rational to make predictions about what questions scientists will or will not be able answer? In reply to the first question, I argue that the recent work on the colors of the dinosaurs matters less to the debate about the epistemology of historical science than it might seem. In reply to the second question, I argue that it is difficult to specify a policy that would rule out the failed bet without also being too conservative. (shrink)

The recent republication of David Bloor's Knowledge and Social Imagery in a second edition provides an occasion to reappraise the celebrated work which launched the so-called Strong Programme in the sociology of scientific knowledge. This work embodies the general outlook and foundational principles in a way that is still characteristic of its descendents. Above all, the recent republication of Bloor's original book is evidence of the continuing interest and importance of the work, but it also provides the clearest evidence (...) of the shortcomings of the enterprise. The arguments presented in the bulk of the book have received relatively little attention by comparison with the principal tenets enunciated in the first few pages. Accordingly, a detailed examination is made of these original arguments which were so influential in establishing the sociology of scientific knowledge. A close analysis reveals their seemingly unnoticed vacuity, as well as a vast discrepancy between the radical tenets of the Strong Programme and the theses that are actually defended in the body of Bloor's text. In this sense, this article serves to complement and reinforce Mario Bunge's recent masterful survey of the field, which he describes as "a grotesque cartoon of scientific research.". (shrink)

I shall attempt something rash in this paper. I shall draw your attention to some past and current work on perception by psychologists and others. I shall concentrate on work in vision and hearing. This outline will occupy the first part of my lecture. I shall then go on, in the second part, to suggest that this scientific work has certain philosophical implications. This whole attempt is a bit rash for obvious reasons. It is not easy to outline fairly (...) and accurately past and current work in any branch of science. I am very liable, therefore, to do an injustice to the efforts of psychologists and others in this field. What makes matters more difficult for me is that I also have to show that this work is of philosophical interest. What has led me to embark on this perilous enterprise is a hunch I have developed in recent years. I have the hunch that philosophers who are interested in perception would do well to pay rather more attention than they have been wont to do in the past to the work and discourse coming out of the scientific laboratory and similar places. (shrink)

I shall attempt something rash in this paper. I shall draw your attention to some past and current work on perception by psychologists and others. I shall concentrate on work in vision and hearing. This outline will occupy the first part of my lecture. I shall then go on, in the second part, to suggest that this scientific work has certain philosophical implications. This whole attempt is a bit rash for obvious reasons. It is not easy to outline fairly (...) and accurately past and current work in any branch of science. I am very liable, therefore, to do an injustice to the efforts of psychologists and others in this field. What makes matters more difficult for me is that I also have to show that this work is of philosophical interest. What has led me to embark on this perilous enterprise is a hunch I have developed in recent years. I have the hunch that philosophers who are interested in perception would do well to pay rather more attention than they have been wont to do in the past to the work and discourse coming out of the scientific laboratory and similar places. (shrink)

This article deals with the complex relation between providence and descent in Neoplatonism, with particular reference to Proclus and especially his Commentary on the First Alcibiades. At least according to this work, descent is only a species of providence, because there can be providence without any descent. Whereas the gods provide for our cosmos without descending to it, a large group of souls provide for our cosmos by descending to it. The former kind of providence is better than the latter, (...) even if it is necessary that souls descend in order to give existence to the beautiful cosmos. The following study deals with providence as descent, looking at it from two angles. In the first section I show that Proclus designates this form of providence in two rather surprising ways. One term he uses for it, which will be well known to readers of Plotinus, is τόλµα —this despite the word’s negative connotations due to its Neopythagorean and Gnostic origin. A second name for descended providence is ἐπιστροφή. Again, this may be surprising, since we usually expect this term to express the ‘turning back’ of a lower effect to its cause. In Proclus, the word ἐπιστροφή too can have negative connotations, but he also uses it in a positive way when applying it to providence. In the second part of the paper, I explain how Socrates’ providence for Alcibiades can be undefiled, even if Socrates necessarily descends as he offers providential guidance. Proclus’ comparison of Socrates with Hercules, who went to the Underworld in order to save Theseus, serves as a positive illustration of Socrates’ divinelike providence, and marks the deficiency of Socrates compared to the transcendent and undefiled providence of Neoplatonic divinities. (shrink)

The recent republication of David Bloor's Knowledge and Social Imagery in a second edition provides an occasion to reappraise the celebrated work which launched the so-called Strong Programme in the sociology of scientific knowledge. This work embodies the general outlook and foundational principles in a way that is still characteristic of its descendents. Above all, the recent republication of Bloor's original book is evidence of the continuing interest and importance of the work, but it also provides the clearest evidence (...) of the shortcomings of the enterprise. The arguments presented in the bulk of the book have received relatively little attention by comparison with the principal tenets enunciated in the first few pages. Accordingly, a detailed examination is made of these original arguments which were so influential in establishing the sociology of scientific knowledge. A close analysis reveals their seemingly unnoticed vacuity, as well as a vast discrepancy between the radical tenets of the Strong Programme and the theses that are actually defended in the body of Bloor's text. In this sense, this article serves to complement and reinforce Mario Bunge's recent masterful survey of the field, which he describes as "a grotesque cartoon of scientific research.". (shrink)

This article is a reconsideration of Tesch's (1977) ethical, educational, and methodological functions for debriefing through a literature review and an Internet survey of authors of articles published in the Journal of Personality and Social Psychology and Journal of Traumatic Stress . We advocate for a larger ethical role for debriefing in nondeception research. The educational function of debriefing is examined in light of the continued popularity of undergraduate participant pools. A case is made for the methodological function of debriefing (...) to clarify aspects of research participation. Recommendations are made to improve the conducting and reporting of debriefings. (shrink)

Recent discussion of the meaning contribution of focus centered around the question of how focus information is integrated into semantic and pragmatic interpretation. One type of theory assumes that certain operators can make direct use of focus information. These theories stipulate that focus-sensitive operators like only or even, quantificational adverbials, and reason clauses have to be associated with a focus in their scope. Such “association with focus” theories have been proposed, for example, by Jackendoff (1972), Jacobs (1983), Rooth (1985), von (...) Stechow (1990) and Krifka (1992). More recently, Rooth (1992) has proposed that focus contributes in a more indirect way to the interpretation of these operators. Rooth argued that the quantificational domain of such operators is fixed by contextual factors, and that these contextual factors in turn are influenced by focus. More specifically, focus is seen as a device that introduces and regulates contextual variables that are then taken up by certain operators. One important argument for the contextual account of focus is that it does not have to stipulate focus in certain cases, namely socalled “second occurrence expressions”, in which there is little, if any, phonological evidence for it. (shrink)

Following promulgation of the Nuremberg code in 1947, the ethics of research on human subjects has been a challenging and often contentious topic of debate. Escalation in the use of research participants in low-income countries over recent decades , has intensified the debate on the ethics of international research and led to increasing attention both to exploitation of vulnerable subjects and to considerations of how the 10:90 gap in health and medical research could be narrowed. In 2000, prompted by the (...) discussions over several years that led to the US NIH launching a capacity building programme on research ethics for members of research ethics committees in developing countries, we advanced a ‘new look’ for the ethics of international research.1 Since then progress has been made on several fronts.First, our ideas—considered somewhat radical and impractical at the time—have been provocatively addressed by scholars who have either contested them or advanced similar conceptions of what obligations international researchers have to research participants and communities in low income countries before, during and after clinical trials. Second, those researchers who have been sympathetic to our ideas have either endeavoured to put these into practice or have investigated the feasibility of doing so. Third, the intractability of the 10/90 gap and the escalation of interest in global health have sensitised many to the need to amplify the uptake of these ideas in practice.Here, we briefly review the conceptual and practical developments in international research ethics. While much conceptual progress has been made (and the concepts are now appearing …. (shrink)

The validity of the double effect doctrine is examined in euthanasia and abortion. In these two situations killing is a method of treatment. It is argued that the doctrine cannot apply to the care of the dying. Firstly, doctors are obliged to harm patients in order to do good to them. Secondly, patients should make their own value judgments about being mutilated or killed. Thirdly, there is little intuitive moral difference between direct and indirect killing. Nor can the doctrine (...) apply to abortion. Doctors kill fetuses as a means of treating the mother. They also kill them as an inevitable side effect of other treatment. Drawing a moral distinction between the direct and the indirect killing gives counterintuitive results. It is suggested that pragmatic rules, not ethics, govern practices around euthanasia and cause it to be more restricted than abortion. (shrink)

continent. 1.4 (2011): 230—233. A word about the quotation marks. People ask about them, in the beginning; in the process of giving themselves up to reading the poem, they become comfortable with them, without necessarily thinking precisely about why they’re there. But they’re there, mostly to measure the poem. The phrases they enclose are poetic feet. If I had simply left white spaces between the phrases, the phrases would be read too fast for my musical intention. The quotation marks make (...) the reader slow down and silently articulate—not slur over mentally—the phrases at the pace, and with the stresses, I intend. They also distance the narrative form myself. I am not Alette. Finally they may remind the reader that each phrase is a thing said by a voice: this is not a thought, or a record of thought process, this is a story, told.(1) We read (reread) the poems that keep the discourse with ourselves going. —Wallace Stevens We have to break open words or sentences, too, and find what’s uttered in them. —Gilles Deleuze “The Descent of Alette” “is an allegorical poem” “in four books” “first published” “in 1992” “by Alice Notley.” “In the Descent of Alette,” “the double quotation mark” “is wrapped around” “words, phrases, sometimes whole sentences, and utilized as bones for structure and tonality.” “The winged” “dbl quotation” “like angels or devils” “descending from elsewhere” “function as” “poetic feet.” “Distance” “in the text through the use of dbl quotes,” “according to Notley,” “was a way to distance” “her self” “from the narrative.” I know someone who tattooed double quotes on her shoulder blades. In other words, the body is quotable. To be able to say that one is quotable. A body filled with other’s sayings. I never asked her what for, what is the double quote tattoo for and why on the shoulder blades? I prefer my own interpretation that keeps shifting every time I see her. First words of every poem in every book: Book One One ... On ... A ... There ... I ... We ... An ... A ... A ... I ... At ... A ... When ... When ... There ... I ... In ... At ... I ... Once ... A ... A ... In ... A ... A ... Two ... I ... I ... Eyeball ... In ... I... A ... I ... I ... On ... I ... There ... What ... As ... As Book Two I ... When ... I ... I ... As ... I ... I ... There ... I ... There ... I ... A ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I ... I Book Three The ... Presently ... I ... I’m ... I ... We ... What ... My ... I ... Who ... But ... Lay ... My ... I ... The ... Your ... The ... I ... It’s ... As ... The ... Talon’s ... When ... We ... I ... Slowly ... I ... I ... The ... How ... The Book Four I ... I ... You ... The ... Now ... She ... The ... There ... As ... Then ... The ... All ... Let’s I ... You ... The ... Thus ... The ... I ... The ... I ... There ... Have ... The ... As ... The Defamiliar Object “Poetry is a defamiliarized language, whose formations, so far from being simply formations of meaning, are aesthetic structures...”(2) “The same can be” “irresponsibly associated” “with the use of punctuation.” “The dbl quotation as a measure” “of poetic feet” “is treated as such” “because the author” “injects artfulness into it.” “The dbl quote is an object—” “a joystick” “to control breadth” “(of breath.)” “To de-familiarize” “said sign” “is also to” “impart the sensation of [it] as [it is] perceived and not as they are known.”(3) “The dbl quote” “nests previous words, phrasings and sayings.” “How many have come and gone” “through the doorway of this punctuation sign.” “There are also air quotes and virtual quotes.” “There is emphasis and there’s irony.” “It would be aggravating” “or interesting” “to watch a reading of” “The Descent of Alette” “with someone” “raising and curling” “fingers” “bent out of shape” “in what could be used as” “peace signs.” “I am trying to avoid” “scare quotes.” “I looked up” “what they are” “and supposedly they arose” “in the early 20th century.” “The scare quote” “is a mark around a word or phrase to indicate that it doesn’t signify conventional or literal meaning.” “This isn’t how Notley” “intended to use them” “in The Descent of Alette.” “The characters, places, and things” “signify nothing” “beyond” “their literal meaning” “ within the allegory .” “I’d like to stress” “within the allegory;” “that’s why its” “italicized.” “It is told through” “the main character/voice of” “Alette.” “The author reminds us she is not Alette.” “The author marvelously found a way” “to distance” “her self” “from the narrative.” “This was attempted” “by tonal and intimate” “affect of the dbl quote” “used as poetic feet.” “Its as though” “punctuation in this regard” “becomes a magical toy.” “Arguably, punctuation” “(as perceived)” “undergoes a kind of” “ defamiliar ” “make-over.” “The text” gently forces the reader” “to slow down,” “read slowly.” “At some point” “one begins to sense” “lines of text” “moving on its own.” “Broken words, phrases, and sentences” “shuttling left to right” “like a subway” “that stops” “from station to station;” “open quote to end quote.” Double Quote Occupied “There are two worlds; one above ground” “and one underground.” “The world above ground is where,” “the tyrant” “with a capital t” “lives.” “(The “T” gets tangled in the claws of the dbl quote.)” “Alette becomes an owl and kills him.” “In the last book the tyrant dies.” “ “...the tyrant” “a man in charge of” “the fact” “that we were” “below the ground” “endlessly riding” “our trains, never surfacing” “A man who” “would make you pay” “so much” “to leave the subway” “that you don’t” “ever ask” “how much it is” “It is, in effect,” “all of you & more” “Most of which you already” “pay to live below” “But he would literally” “take your soul” “Which is what you are” “below the ground” “Your soul” “your soul rides” “this subway” “I saw” “on the subway a” “world of souls” ”(4) “New York;” “the city of cities” “and its subways—” “worlds underground,” “above ground,” “& above the above ground.” “Skyscrapers,” “Wall Street,” “old money,” “new money,” “and falling further down a cleavage;” “the middle class” “slipping away.” “Contemporary artist ” “Ligorano Reece” “recently made” “a sculpture of ice ” “a block of ice” “carved to read” “middle class” “(in all upper case letters)” “and let it melt” “naturally” “for however long—” “hours,” “days.” “It didn’t take very long to melt.” A global uprise of mass demonstrations; a cacophony of bodies on the street, in parks and universities, on City Hall lawns, coastal ports, neighborhoods, etc., and for what? The reasons are endless and finite. Not a single body is unaffected by the movement even when not “occupying.” “Occupiers” “stormed into a Sotheby’s auction” “protesting” “via human microphone” “that the CEO takes home” “about” “six thousand dollars” “a day.” “(The a/Art market” “is not a reflection” “of a desire” “for a/Art” “but a reflection” “of a desire” “for money” “confused with a/Art.)” What could it mean to occupy that which has been written or said? Someone with double quotes tattooed on both shoulders attempts to reclaim the sign; re-invent it privately-publicly since the body is always split between both spheres. A genre of hide-and-seek; the speaking and silent body which can never mean what it says even while it so desires to mean something. To nest (and hold hostage) someone in double quotes is an act of violence; a gesture of displacement where one is arrested, dislocated, and scrutinized under a distant gaze. “The air quote” “also known as” “finger quote or ersatz quote” “supposedly” “harks back to” “1927.” “The brevity of this gesture” “ as something invisible” “like virtual money or credit” “doesn’t really exist” “though it take up space;” “its the ghostliest of all punctuation signs” “and one that requires the presence and appearance of a body.” “ “she made a form” “in her mind” “an imaginary” “form” “to settle” “in her arms where” “the baby” “had been” “We saw her fiery arms” “cradle air” “She cradled air...” ”(5) “The air” “gets occupied” “by one or two hands” “with thumb, forefinger, and middle finger” “which alternately could be used” “to shoot rubber bullets,” “pepper spray,” “tear gas.” “How three fingers” “could be responsible for so much:” “satire, sarcasm, irony” “and ultimately” “bruises, blood, death.” (“The violence of the dbl quote is to eagerly to place oneself inside a tornado.)” “The violence of this” “embodied punctuation mark” “stems from a discordance with others.” “Is the name, word, or phrase” “placed in dbl quotes” “heroic” “ or brave?” “An act of displacement;” “must there always be” “bright or negative lights—” “a leaderless act” “to inhabit, to occupy” “space removed” “from normative use.” “Of course” “I’m also wondering” “what it means to re-occupy” “public/private space—the street, neighborhood or page” “policed” “by laws, limits, and” “to some extent” “punctuation.” Echo, Mirror “There are first, second, and third voices interwoven.” “ “Braid of voices,”(6) ” “Some lines read as internal thoughts,” “dialogues,” “and scene descriptions,” “all of which make up the allegory.” “It seems appropriate” “for the word” “allegory” “to nest in dbl quotes” “for perhaps it might be” “a gesture to echo on and on” “eternally referencing” “whatever came before.” I notice the first tooth of the double quote, when paying too close attention, gets caught in the hook of the “f”. I space bar to untangle them; the f does not resist the closed bite of “deaf” and I resist to know what it could mean, because it could doubly mean nothing. “ “He looked” “so familiar” “to me...”(7) ” “The second-person” “echoes in one of two directions:” “further into” “or farther from” “me.” “Its as though” “the second-person amplifies” “or else the opposite” “in which he,” “who looks so familiar,” “retreats further” “like stars in a telescope.” “The dbl quote” “has this kind of affect” “concerning distance and dimension” “as also illusory” “as something twice removed” “and unreal” “in a similar way” “movie stars are unreal and far away.” “ “I entered” “a car” “in which I seemed” “to see double” “Each person I” “looked at seemed” “spread out” “as if doubled” “Gradually” “I perceived that” “each person” “was surrounded by a ghostly” “second image” “was encased in it” “& each” / “of those images,” “those encasings,” “was exactly the same” “each was in fact” “the tyrant...” ”(8) A daydream of a mirror-less world while staring through window blinds; a palm tree behind. It was dark with nothing there. A world with no mirrors “in my mind,” though my mind could only reflect what it knew: a palm tree. Naturally then, palm trees multiplied; a world of palm trees reflected the daydream with no mirror in sight. “The mirror” “(prior to obsidian manufacturing ca. 6000 B.C)” “was wherever water” “could be found.” “Its interesting” “mirrors have been around” “before humans—its funny” “animals and humans” “get born into” “a world of mirrors,” “therefore, simulation” “is always already” “a given—” “a sparkly consequence to be born with a dbl.” NOTES 1. Notley, Alice. “Author’s Note” in The Descent of Alette (New York, 1996) 2. Bruns, Gerald L. “ From Intransitive Speech to the Universe of Discourse” in Modern Poetry And The Idea of Language (New Haven & London, 1974), p.75 3. Ibid. p.77 4. Notley, Alice. The Descent of Alette (New York, 1996). p.3 5. Ibid. p.10 6. Ibid i. p.9 7. Ibid ii. p.16 8. Ibid iii. p.12. (shrink)

Thomas Kuhn's, book The Copernican Revolution deserves to be regarded as the best of that small group of longue duree histories that mark postwar historiography of science. In many respects, it is probably the single most influential one. Tightly written and brilliantly argued, it is responsible, together with The Structure of Scientific Revolutions, for the continued popularity of the metaphor of revolution in science among scholars and students alike. Yet, surprisingly, while aspects of the story conceived in Kuhn's original account (...) have been debated, researched, and considerably revised, his overall understanding of a scientific revolution initiated by Copernicus has received no detailed scrutiny. The same may be said of the deployment of Copernican episode in Structure. Finally, a critical appreciation is in order not least because Kuhn's story is so compact and his language at times metaphorical. (shrink)

It is a great pleasure to introduce this collection of papers on the use of introspective evidence in cognitive science. Our task as guest editors has been tremendously stimulating. We have received an outstanding number of contributions, in terms of quantity and quality, from academics across a wide disciplinary span, both from younger researchers and from the most experienced scholars in the field. We therefore had to redraw the plans for this project a number of times. It quickly became clear (...) to us that the collection would expand beyond the scheduled double issue of the Journal of Consciousness Studies. A triple issue was then drafted, but the number of excellent contributions continued to grow. We therefore had to reconsider the publication plans again, and the decision was made to publish an extended collection of papers in discrete instalments. At present substantial progress has been made towards determining the content of a second double issue of the Journal of Consciousness Studies, due summer 2004. A third instalment now appears to be a real possibility. We welcome enquiries from authors interested in submitting to later instalments, especially those offering a novel perspective that is not otherwise represented. However, we do not intend continue this collection indefinitely. In putting together the first major interdisciplinary collection on this topic, we view our task as that of providing a starting point. Sufficient outlets exist to support ongoing debate. (shrink)

Recently I asked a well-known ID sympathizer what shape he thought the ID movement was in. I raised the question because, after some initial enthusiasm on his part three years ago, his interest seemed to have flagged. Here is what he wrote: An enormous amount of energy has been expended on "proving" that ID is bogus, "stealth creationism," "not science," and so on. Much of this, ironically, violates the spirit of science. The proof of the pudding is in the eating. (...) But on the other side, too much stuff from the ID camp is repetitive, imprecise and immodest in its claims, and otherwise very unsatisfactory. The "debate" is mostly going around in circles. The real work needs to go forward. There is a tremendous ferment right now in the "evo/devo" field, for instance. Some bright postdocs sympathetic to ID (and yes, I know how hard a time they would have institutionally at many places) should plunge right into the thick of that. Maybe they are at this very moment: I hope so! Every now and again we need to take a good, hard look in the mirror. The aim of this talk is to help us do just that. Intelligent design has made tremendous inroads into the culture at large. Front page stories featuring our work have appeared in the New York Times, L.A. Times, Wall Street Journal, San Francisco Chronicle, and so on. Television, radio, and weeklies like Time Magazine are focusing the spotlight on us as well. This publicity is at once useful and seductive. It useful because it helps get the word out and attract talent to the movement. It is seductive because it can deceive us into thinking that we have accomplished more than we actually have. (shrink)

This book argues for the use of nonideal theory in social ontology. The central claim is that a paradigm shift is underway in contemporary social ontology, from ideal to nonideal, and that this shift should be fully followed through. To develop and defend this central claim, the first step is to show that the key questions and central dividing lines within contemporary social ontology can be fruitfully reconstructed as a clash between two worlds, referred to as ideal and nonideal social (...) ontology. Ideal social ontology is characterized by consensus and cooperation, while nonideal social ontology is characterized by conflict and contestation. The second step is to show that, when taken together, objections to the standard model of ideal social ontology (the dominant version of ideal social ontology) imply that this model needs to be given up in favor of nonideal social ontology. In other words, we should look to nonideal rather than ideal social ontology for core concepts. The third step is to offer a positive account, called the power view, of nonideal social ontology. This account places the concept of social power at the core of a general theory of the social world and replaces the flat and narrow conception of power in ideal social ontology with a richer and more extensive conception. In addition, it rectifies a shortcoming in nonideal social ontology by attending to class, which has been notably and oddly overlooked in the literature. (shrink)

This article looks at the Global Christian Forum as a new initiative in the historical context of the modern ecumenical movement and from a Catholic point of view. It puts the GCF in three perspectives: as a new stage in ecumenical development, as part of a turning point in ecumenical history and as a new impulse of the Holy Spirit. By bringing in the Evangelicals and Pentecostals, the GCF has widened the range of church families in conversation with one another. (...) The GCF may begin to make a substantial contribution in the situation since Vatican II in which some critical issues between divided Christians have been solved. The beginning convergence of the two movements that have marked the past century — ecumenical and Pentecostal/evangelical — may be the work of the Holy Spirit. (shrink)

§1. Iterated Gödelian extensions of theories. The idea of iterating ad infinitum the operation of extending a theory T by adding as a new axiom a Gödel sentence for T, or equivalently a formalization of “T is consistent”, thus obtaining an infinite sequence of theories, arose naturally when Godel's incompleteness theorem first appeared, and occurs today to many non-specialists when they ponder the theorem. In the logical literature this idea has been thoroughly explored through two main approaches. One is that (...) initiated by Turing in his “ordinal logics” and taken very much further in Feferman's work on transfinite progressions, which also introduced the more general study of extensions by reflection principles, of which consistency statements are a special case. This approach starts from an assignment of theories to ordinal notations, and extracts sequences of theories through a suitable choice of a path in the set of ordinal notations. The second approach, illustrated in particular by the work of Schmerl and Beklemishev, starts instead from a suitably well-behaved primitive recursive well-ordering, which is used to define a sequence of theories. This second approach has led to precise results about the relative proof-theoretical strength of sequences of theories obtained by iterating different reflection principles. The Turing-Feferman approach, on the other hand, lends itself well to an investigation in qualitative and philosophical terms of the relevance of such iterated reflection extensions to mathematical knowledge, in particular because of two developments associated with this approach. (shrink)

Research on the use of propranolol as a pharmacological memory dampening treatment for post-traumatic stress disorder is continuing and justifies a second look at the legal and ethical issues raised in the past. We summarize the general ethical and legal issues raised in the literature so far, and we select two for in-depth reconsideration. We address the concern that a traumatized witness may be less effective in a prosecution emerging from the traumatic event after memory dampening treatment. We (...) analyze this issue in relation to sexual assault, where the suggestion that corroborating evidence may remedy any memory defects is less likely to be helpful. We also consider the clinical ethical question about a physician's obligation to discuss potential legal consequences of memory dampening treatment. We conclude that this latter question reflects a general problem related to novel medical treatments where the broader socio-legal consequences may be poorly understood, and suggest that issues of this sort could usefully be addressed through the promulgation of practice guidelines. (shrink)