We argue for a new conventionalism about many kinds of evolutionary groups, including clades, cohesive units, and populations. This rejects a consensus, which says that given any one of the many legitimate grouping concepts, only objective biological facts determine whether a collection is such a group. Surprisingly, being any one kind of evolutionary group typically depends on which of many incompatible values are taken by suppressed variables. This is a novel pluralism underlying most any one group concept, rather than a (...) familiar pluralism claiming many concepts are legitimate. Consequently, we must help biological facts determine grouphood, even when given a single grouping concept. (shrink)

Using a vague predicate can make commitments about the appropriate use of that predicate in the remaining part of the discourse. For instance, if I assert that some particular pig is fat, I am committed to judging any fatter pig to be fat as well. We can model this update effect by recognizing that truth depends both on the state of the world and on the state of the discourse: the truth conditions of ‘This pig is fat’ rule out evaluation (...) points for which the pig in question in world w is thinner than the cutoff for fatness in the discourse d. Then disagreements about taste are disagreements about the discourse. Unlike disagreements about the world, disagreements about the discourse can be faultless, given that none of the discourse participants has privileged authority to make pronouncements about conventions for appropriate use of a predicate. Thus on the dynamic view developed here, whether or not a dispute about taste turns out to be faultless depends in part on predictable features of the previous discourse. On this account, faultless disagreement involving predicates of personal taste does not force relativizing truth to a judge or assessor. (shrink)

In this chapter I consider the prospects of globalizing expressivism. Expressivism is a position in the philosophy of language that questions the central role of representation in a theory of meaning or linguistic function. An expressivist about a domain D of discourse proposes that utterances of sentences in D should not be seen, at the level of analysis as representing how things are, but as expression of non-representational states. So, in the domain of value-utterances, the standard idea is that speakers (...) are expressing affective-states, such as approval or disapproval focused on objects or conditions. Global expressivism is the thesis that for all domains of discourse, we treat utterances, at the level of analysis, as expressing non-representational states. I set out several conceptions of how one might formulate this programme. The first involves minimalism about truth and semantic content – and only partially gives up representationalism (viz., the thesis that some utterances express representational states). The second is Price’s conception, which incorporates minimalism, Brandomian inferentalism, and concepts from Carnap, but still clings to representationalism. I then arrive at my favoured third conception, which does not employ minimalism or inferentialism, and eliminates vestiges of representationalism. It does the latter by embracing expressivism about meaning-attribution. Having set out key aspects of the approach I then address the question of metaphysics. What metaphysical conception of reality goes with global expressivism so understood? I argue it implies a form of metametaphysical nihilism. This is that idea that reality lacks any ultimate nature. (shrink)

This paper will follow the thread that may be traced in Derrida’s Mal d’Archive 4 when the title is translated as “The Archive Bug.” In so doing, it will attempt to describe the ways in which the death drive as it appears in Mal d’Archive may be related to the concept of différance as it has emerged in Derrida’s theoretical writings under various names. The argument will hinge on the thinking of différance as a virus, in the sense of an (...) information entity which propagates by entering a genetic structure and substituting elements of its code. (shrink)

Ruins, their evocations and enigmas, have been a source of fascination since the advent of civilization. Both coordinating and distressing the relations of space and time, ruins are unparalleled catalysts of cultural analysis, as both history and adumbration. Ruins, and the concept of ruin on which they ‘rest’ and through which they decay, can be regarded in space, as strata, in time, as sedimenta, and in dynamic terms, as lamina. This essay works down through each focusing on the forceof ruin (...) occurring between them. The essay itself is a lamination: Anselm Kiefer's exploration of ruins as artefacts, in recent works such as ‘Falling Star’, shown at Paris’ Grand Palais in the summer of 2007 as the first installation in its Monumenta series, plays across many dimensions of ruins’ themes; Derrida's exploration of the very idea of ruin – not ruins but ruin, as artefacture – conceptualizing ruins’ liminal nature, at the very limit of phenomenology, in Mémoires d'aveuglesand elsewhere; the ruin-caught-in-motion of the virtually unknown French-Italian painter ‘Monsù Desiderio’; and the linguistic ruin of Samuel Beckett's ‘D'un ouvrage abandonné’ and ‘Sans’. Each contributes to the others as ruins and ruin accumulate. Finally, ruin's decay passes into and through a passe partout into the uninhabitable. (shrink)

The view that Islamicate science went into decline while European science was getting started is still commonly held among historians of science and almost universal in general history and popular presentations. Different versions of the decline thesis make it start in the 11 th century with the work of Ibn al-Haytham and al-Ghaz ā l ī ; in the 13 th century with the sack of Baghdad, or at latest with the beginning of the “Scientific Revolution” in Europe. However, it (...) is now increasingly apparent that Islamicate science was healthy well into the period of the Ottomans, Safavids and Mughals. There are many reasons for the continued attraction of the decline theses. In addition to the inaccessibility of sources, these include mistaking the nature of credentialing in Islamicate science, and mistaking the nature of the sources in which original science was appearing. In this paper, I will sketch a more appropriate social structure for understanding Islamicate science by describing the institutional structures for training scientists and awarding credentials, and the practices of recording and transmitting research in writing. Taking the Safavid scholar Bahā ʾ al-D ī n al- ʿ Ā mil ī as an example, I will suggest that these structures supported an active research community well into the early modern period, further undermining the decline thesis. (shrink)

Aristides Quintilianus' dates are not known, but he can hardly be earlier than the first century A.D. or later than the third. Several passages in the early pages of his de Musica1 purport to record facts about the practice of much older theorists, in contexts which make it clear that his references are to the period before Aristoxenus. Since our knowledge of music theory in that period is extremely sketchy, it is obviously worth trying to assess the reliability of Aristides' (...) information. Two of his references have often been recognized as being of special interest, and there is a third, to which, I shall argue, the other two are intimately related. The first records two systems of notation, alleged by Aristides to have been used by oί ρχαîoι. The second is the famous, or notorious, account of certain ‘divisions of the tetrachord’ which were employed by oί πνυαλαιότατoι πρς ρμoνίας. It is these, Aristides tells us, which are mentioned by Plato in the Republic.2 The remaining passage is superficially rather less exciting: it records the names and initial notes of the ρμoνίαι, or forms of octave scale, said to have been distinguished by oί παλαιoί, and says something about a method by which the πoιότης of each can be made clear. The information given here about the nature of the ρμoνίαι is familiar: it is to be found, for example, in Cleonides Eisagoge 19. 4 ff., where rather more detail is given, and where the names of the ρμoνίαι are again ascribed to oί ρχαîoι . I shall suggest, however, that Aristides' version has independent interest. What he tells us in the first two passages is found nowhere else. (shrink)

Bryan Ronald Wilson, a Fellow of the British Academy, was a world-renowned sociologist of religion. He was awarded a D.Litt. by the University of Oxford in 1994, the same year that he was elected a Fellow of the British Academy. Wilson was also awarded an Arnold Gerstenberg studentship, which allowed him to take up a place at the London School of Economics, where Maurice Ginsberg introduced him to the literature of the sociology of religion and where he developed a life-long (...) interest in sectarian movements. He returned to Yorkshire to take up an Assistant Lectureship in Sociology in the Department of Social Studies at the University of Leeds in October 1955, being promoted to Lecturer in 1957. There Wilson taught courses on urban sociology, sociological theory, and the social institutions of modern Britain, as well as on the sociology of religion. He was a Fellow of All Souls College for thirty years. The themes of secularisation, rationalism, and sectarianism were of particular interest to Wilson throughout his academic life. (shrink)

Interactive narratives are inextricable from the way that we understand our encounters with digital technology. This is based upon the way that these encounters are processually formed into a narrative of episodic events, arranged and re-arranged by various levels of agency. After describing past research conducted at the iCinema Research Centre at the University of New South Wales, this paper sets out a framework within which to build a relational theory of interactive narrative formation, outlining future research in the area.

Living things are often plastic during their early development and are moulded by the environment. Many human fetuses have to adapt to a limited supply of nutrients, and in doing so they permanently change their physiology and metabolism. These programmed changes may be the origins of a number of diseases in later life, including coronary heart disease, stroke, diabetes and hypertension.

D. J. Bartholomew Social law and human choice Samuel Johnson spoke for many in saying, 'Sir, we know our will is free, and there's an end on't. ...

In two recent papers Joseph Margolis has sketched a situation, his characterisation of which involves a denial of the ubiquitous contention that knowing that p is logically sufficient for believing that p. There are not many philosophers who would follow him in this denial of what is most usually taken as the only “natural” way of construing knowledge. If Margolis has not succeeded in constructing a counterexample to the official view, and I do not believe that he has, it is (...) of some importance to understand just why he has failed. No epistemological gain is achieved by meeting Margolis with a question begging reply, as I think has been done by his critic, J.A. Barker.The case the Margolis offers is this:… S may not have thought about P at all, may have thought about Q-which is “significantly” related to P, and believes that Q; on that condition, it is conceivably true that S knows that P. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Origins and Evolution of Bioethics: Some Personal ReflectionsEdmund D. Pellegrino (bio)AbstractBioethics was officially baptized in 1972, but its birth took place a decade or so before that date. Since its birth, what is known today as bioethics has undergone a complex conceptual metamorphosis. This essay loosely divides that metamorphosis into three stages: an educational, an ethical, and a global stage. In the educational era, bioethics focused on a (...) perceived “dehumanization” of medicine by the rising power of science and technology. Remedies were sought by introducing humanities, ethics, and human “values” into the medical curriculum. Ethics was one among the humanistic disciplines, but not the dominant one. In the second era, ethics assumed a dominant role as ever more complex dilemmas emerged from the rapid pace of biological research. As such dilemmas were applied to medical practice, the need for a more rigorous and more formal analysis of their moral status was clear. Philosophically-trained ethicists had an obvious role. They began to teach, write, and profoundly influence medical education and practice. In the third—and present—period, the breadth of problems has become so broad that ethicists must, themselves, draw on disciplines well beyond their expertise—e.g., law, religion, anthropology, economics, political science, psychology, and the like. The era of bioethics as a global enterprise is upon us. The original hope for humanizing medicine has not been overtly successful; however, much has been accomplished of value to patients, the profession, and society. Medical morality has been transformed into a formal, systematic study of a whole range of issues of the greatest significance to humanity. Now the major challenge is one of identity, or inter-relationships and connections between the theoretical and the practical. Bioethics has outgrown its beginnings.I have been invited to give a “personal recollection” of the early development of bioethics. Such invitations are notoriously hard to resist, but also problematic when they are the recollections of a participant [End Page 73] in the events to be described. We need only be reminded of the vagaries common to the plethora of memoirs on the book stands today. Few have escaped the perils of selective memory, self-promotion, or the settling of old scores. Yet their perils notwithstanding, memoirs may serve some useful purpose. They are the raw material—verbal kitchen middens so to speak—out of which historians can later sift fact from fancy. They enable “tribal elders” to give witness to the past from which the present can fashion some sense of continuity.I will organize my reflections around three very arbitrary time periods that represent my own way of thinking about the evolution of bioethics: (1) an era of “proto-bioethics” (1960–1972), (2) an era of philosophical bioethics (1972–1985), and (3) an era of global bioethics (1985-present). Each era, of course, overlaps with the others, and the dominant strand of each runs through the others as well.In the proto-bioethics period, the language of human values predominated; in the era of bioethics philosophically construed, it was the language of philosophical ethics; and in the era of bioethics globally construed, the social and behavioral sciences have gained greater prominence. In each period, interest in the traditional humanities other than philosophy waxed and waned. In the earlier years, religion and theology predominated. Beginning in the 1970s, philosophy took a dominant role. In the last two decades, other disciplines, like law, literature, and the social sciences, have exerted more and more influence (McNeur 1963; Pellegrino 1997; Barker 1987).I make no pretense here of writing any part of the formal “history” of bioethics. Works of this nature are beginning to appear (Rothman 1991; Jonsen 1998 ; Dell’Oro and Viafora 1996). Thomas McElhinney and I are preparing our own account of the work and influence of the Institute on Human Values in Medicine, one of the influential programs of the Society for Health and Human Values (Pellegrino and McElhinney, n.d.). Space limitations as well as prudence preclude any attempt to do justice to all the events, institutions, and people who have made the field of bioethics what it is today. I apologize for these omissions, for any unintentional lapses of... (shrink)

This book takes concepts developed by researchers in theoretical computer science and adapts and applies them to the study of natural language meaning. Summarizing over a decade of research, Chris Barker and Chung-chieh Shan put forward the Continuation Hypothesis: that the meaning of a natural language expression can depend on its own continuation.

I argue that one’s views about which “metaphysical laws” obtain—including laws about what is identical with what, about what is reducible to what, and about what grounds what—can be used to deflect or neutralize the threat posed by a debunking explanation. I use a well-known debunking argument in the metaphysics of material objects as a case study. Then, after defending the proposed strategy from the charge of question-begging, I close by showing how the proposed strategy can be used by certain (...) moral realists to resist the evolutionary debunking arguments. (shrink)

This paper argues that the new metaphysics of powers, also known as dispositional essentialism or causal structuralism, is an illusory metaphysics. I argue for this in the following way. I begin by distinguishing three fundamental ways of seeing how facts of physical modality — facts about physical necessitation and possibility, causation, disposition, and chance — are grounded in the world. The first way, call it the first degree, is that the actual world or all worlds, in their entirety, are the (...) source of physical modality. Humeanism is the best known such approach, but there are other less well-known approaches. The second way, the second degree, is that the source of physical modality lies in certain second-order facts, involving a relation between universals. Armstrong’s necessitarianism and other views are second-degree views. The third way, the third degree, holds that properties themselves are the source of physical modality. This is the powers view. I examine four ways of developing the third degree: relational constitution, graph-theoretic structuralism, dispositional roles, and powerful qualities. All these ways are either incoherent, or just disguised versions of the first-degree. The new metaphysics of powers is illusory. With the collapse of the third degree, the second degree, the necessitarian view of law, collapses as well. I end the paper with some reflections on the first degree, on the problem of explaining necessary connections between distinct existences, and on the dim prospects of holist ontology. (shrink)

Bird argues that Armstrong’s necessitarian conception of physical modality and laws of nature generates a vicious regress with respect to necessitation. We show that precisely the same regress afflicts Bird’s dispositional-monist theory, and indeed, related views, such as that of Mumford & Anjum. We argue that dispositional monism is basically Armstrongian necessitarianism modified to allow for a thesis about property identity.

According to the Ontological Innocence Thesis (OIT), grounded entities are ontologically innocent relative to their full grounds. I argue that OIT entails a contradiction, and therefore must be discarded. My argument turns on the notion of “groundmates,” two or more numerically distinct entities that share at least one of their full grounds. I argue that, if OIT is true, then it is both the case that there are groundmates and that there are no groundmates. Therefore, so I conclude, OIT is (...) false. Moreover, once we have seen why OIT is false, only three heterodox views about reality's structure remain. So this paper’s second conclusion is that, even after we have discarded OIT, we are in for an additional surprise. (shrink)

Can hybridism about moral claims be made to work? I argue it can if we accept the conventional implicature approach developed in Barker (Analysis 2000). However, this kind of hybrid expressivism is only acceptable if we can make sense of conventional implicature, the kind of meaning carried by operators like ‘even’, ‘but’, etc. Conventional implictures are a form of pragmatic presupposition, which involves an unsaid mode of delivery of content. I argue that we can make sense of conventional implicatures, (...) but doing so requires we embrace a form of pure, non-hybrid expressivism. This is a cognitivist expressivism I have developed elsewhere. We need cognitivist expressivism to make sense of how we evaluate—judge as correct or incorrect—implicature-bearing sentences. Once we embraced the possibility of this pure expressivism, we might as well be pure expressivists about normative discourse too. I show how we can do that. The motivations for a specifically hybrid theory are dialectically undercut. (shrink)

In this paper we present a new metaphysical theory of material objects. On our theory, objects are bundles of property instances, where those properties give the nature or essence of that object. We call the theory essential bundle theory. Property possession is not analysed as bundle-membership, as in traditional bundle theories, since accidental properties are not included in the object’s bundle. We have a different story to tell about accidental property possession. This move reaps many benefits. Essential bundle theory delivers (...) a simple theory of the essential properties of material objects; an explanation of how object coincidence can arise; an actual-world ground for modal differences between coincident objects; a simple story about intrinsic properties; and a plausible account of certain ubiquitous cases of causal overdetermination. (shrink)

Why ever assert clarity? If It is clear that p is true, then saying so should be at best superfluous. Barker and Taranto (2003) and Taranto (2006) suggest that asserting clarity reveals information about the beliefs of the discourse participants, specifically, that they both believe that p . However, mutual belief is not sufficient to guarantee clarity ( It is clear that God exists ). I propose instead that It is clear that p means instead (roughly) 'the publicly available (...) evidence justifies concluding that p '. Then what asserting clarity reveals is information concerning the prevailing epistemic standard that determines whether a body of evidence is sufficient to justify a claim. If so, the semantics of clarity constitutes a grammatical window into the discourse dynamics of inference and skepticism. (shrink)

Let us call dispositional monism the view that all natural properties have their identities fixed purely by their dispositional features, that is, by the patterns of stimulus and response in which they participate. DM implies that natural properties are pure powers: things whose natures are fully identified by their roles in determining the potentialities of events to cause or be caused. As pure powers, properties are meant to lack quiddities in Black's sense. A property possesses a quiddity just in case (...) its identity is fixed by something independent of the causal–nomological roles it may enter into. Paradigmatically, a categorical property is thought of as a property whose identity is fixed by a quiddity .The key question about the viability of DM as a theory of properties is how properties can be pure powers devoid of any quiddity. Bird provides an answer. According to Bird , ‘all there is to a property is a matter of second-order relations to other properties’. The second-order relation is just the relation that a disposition, its stimulus condition, and a manifestation condition bear to each other. Call this relation SR. SR is not causation or physical necessitation. The latter relations are first-order relations between concrete events. SR is a second-order relation. Its possession by properties explains why events featuring those properties can enter into certain first-order relations of causation or necessitation.Bird's thought then is this: the sense in which properties have their identities fixed purely by their causal–nomological roles is that they are relationally constituted, where the relation doing the constituting is SR. 1 This thesis of relational constitution does not imply that natural properties are themselves relations. Nothing prevents the identity …. (shrink)

This book examines the hypothesis of "direct compositionality", which requires that semantic interpretation proceed in tandem with syntactic combination. Although associated with the dominant view in formal semantics of the 1970s and 1980s, the feasibility of direct compositionality remained unsettled, and more recently the discussion as to whether or not this view can be maintained has receded. The syntax-semantics interaction is now often seen as a process in which the syntax builds representations which, at the abstract level of logical form, (...) are sent for interpretation to the semantics component of the language faculty. In the first extended discussion of the hypothesis of direct compositionality for twenty years, this book considers whether its abandonment might have been premature and whether in fact direct compositionality is not after all a simpler and more effective conception of the grammar than the conventional account of the syntax-semantics interface in generative grammar. It contains contributions from both sides of the debate, locates the debate in the setting of a variety of formal theories, and draws on examples from a range of languages and a range of empirical phenomena. (shrink)

Are the sculpture and the mass of gold which permanently makes it up one object or two? In this article, we argue that the monist, who answers ‘one object’, cannot accommodate the asymmetry of material constitution. To say ‘the mass of gold materially constitutes the sculpture, whereas the sculpture does not materially constitute the mass of gold’, the monist must treat ‘materially constitutes’ as an Abelardian predicate, whose denotation is sensitive to the linguistic context in which it appears. We motivate (...) this approach in terms of modal analyses of material constitution, but argue that ultimately it fails. The monist must instead accept a deflationary, symmetrical use of ‘materially constitutes’. We argue that this is a serious cost for her approach. (shrink)

Supports Ernest Barker's interpretation that Aristotle offers a ‘vindication of the right of private property.’ Although Aristotle emphasizes the common interests of the citizens, he also provides a place for private property in all of his constitutions, including the best constitution. The chapter argues that Aristotle gives a basic account of property ownership that is similar to modern concepts of property rights. He offers justifications of private property, states conditions under which property may be justly acquired, defends private property (...) against Plato's communism, and argues that property is indispensable for the exercise of citizenship. (shrink)

This paper proposes that the meanings of some natural language expressions should be thought of as functions on their own continuations. Continuations are a well-established analytic tool in the theory of programming language semantics; in brief, a continuation is the entire default future of a computation. I show how a continuation-based grammar can unify several aspects of natural language quantification in a new way: merely stating the truth conditions for quantificational expressions in terms of continuations automatically accounts for scope displacement (...) and scope ambiguity. To prove this claim, I exhibit a simple finite context-free grammar with a strictly compositional semantics in which quantificational NPs are interpreted in situ but take semantic scope over larger constituents. There is no Quantifier Raising (nor any use of a level of Logical Form distinct from overt syntax), no Cooper Storage (or similar mechanisms used in many recent HPSG, Categorial, or Type-logical treatments), and no need for type-shifting (as in Hendriks' Flexible Types account). Continuations also provide a natural account of generalized coordination that does not require either type-shifting or type polymorphism. Compositionality issues are discussed in some detail. (shrink)

Pluralisms of various sorts are popular in philosophy of science, including those that imply some scientific concept x should be eliminated from science in favour of a plurality of concepts x1, x2, … xn. This article focuses on influential and representative arguments for such eliminative pluralism about the concept species. The main conclusions are that these arguments fail, that all other extant arguments also fail, and that this reveals a quite general dilemma, one that poses a defeasible presumption against many (...) eliminative pluralisms about various scientific concepts. The article ends by outlining a novel integrative alternative in defence of species. 1) Introduction 2) The species Concept, the Category ‘Species’, and the ‘Species’ Category Problem 3) What Are Eliminative Pluralism about species, and the Arguments for It? 4) Evaluation of Arguments 4.1 Splitting? 4.2 Lumping? 4.3 The eliminative pluralist’s dilemma 5) More General Lessons6Species Cohesion: An Integrative Alternative7Conclusion. (shrink)

A fundamental fact is “pure” just in case it has no grounded entities—ex. Tokyo, President Biden, the River Nile, {Socrates}, etc.—among its constituents. Purity is the thesis that every fundamental fact is pure. I argue that Purity is false. My argument begins with a familiar conditional: if Purity is true, then there are no fundamental “grounding facts” or facts about what grounds what. This conditional is accepted by virtually all of Purity’s defenders. However, I argue that it is also the (...) first step toward Purity’s undoing. For, if every grounding fact has a ground, then some grounded entities have “groundmates” or distinct grounded entities that share their full grounds. But, if there are groundmates, then Purity is false. So Purity leads to a contradiction. Therefore, it is false. I close by noting that my argument against Purity also gives us a powerful reason to think that some grounding facts are fundamental. (shrink)

This volume has its roots in two recent developments within mainstream analytic epistemology: a growing recognition over the past two or three decades of the active and social nature of our epistemic lives; and, more recently still, the increasing appreciation of the various ways in which the epistemic practices of individuals and societies can, and often do, go wrong. The theoretical analysis of these breakdowns in epistemic practice, along with the various harms and wrongs that follow as a consequence, constitutes (...) an approach to epistemology that we refer to as non-ideal epistemology. In this introductory chapter we introduce and contextualise the ten essays that comprise this volume, situating them within four broad sub-fields: vice epistemology, epistemic injustice, inter-personal epistemic practices, and applied epistemology. We also provide a brief overview of several other important growth areas in non-ideal epistemology. (shrink)

I propose the first strictly compositional semantic account of same. New data, including especially NP-internal uses such as two men with the same name, suggests that same in its basic use is a quantificational element taking scope over nominals. Given type-lifting as a generally available mechanism, I show that this follows naturally from the fact that same is an adjective. Independently-motivated assumptions extend the analysis to standard examples such as Anna and Bill read the same book via a mechanism I (...) call PARASITIC SCOPE, in which the scope of same depends on the scope of some other scopetaking element in the sentence. Although I will initially discuss the analysis in terms of a familiar Quantifier Raising framework, I go on to implement the analysis within an innovative continuation-based Type-Logical Grammar. The empirical payoff for dealing in continuations is that a simple generalization of the basic analysis gives the first ever formal account of cases in which same distributes over objects other than NP denotations, as in the relevant interpretation of John hit and killed the same man. (shrink)

Are all instances of the T-schema assertable? I argue that they are not. The reason is the presence of conventional implicature in a language. Conventional implicature is meant to be a component of the rule-based content that a sentence can have, but it makes no contribution to the sentence's truth-conditions. One might think that a conventional implicature is like a force operator. But it is not, since it can enter into the scope of logical operators. It follows that the semantic (...) content of a sentence is not given simply by its truth-conditional content. So not all instances of the T-schema are assertable in the relevant sense. Consequently, there is a strong case to be made against truth-conditional semantics of the disquotational variety and deflationism about truth. (shrink)

When and why does awareness of a belief's genealogy render it irrational to continue holding that belief? According to explanationism, awareness of a belief’s genealogy gives rise to an epistemic defeater when and because it reveals that the belief is not explanatorily connected to the relevant worldly facts. I argue that an influential recent version of explanationism, due to Korman and Locke, incorrectly implies that it is not rationally permissible to adopt a “sparse” ontology of worldly facts or states of (...) affairs. I then propose a new explanationist account of genealogical defeat capable of accommodating rational belief in ontological sparsity. According to my account, awareness of a belief’s genealogy gives rise to a defeater when and because it reveals that the belief is not explanatorily connected to its truthmaker. (shrink)

The science called 'harmonics' was one of the major intellectual enterprises of Greek antiquity. Ptolemy's treatise seeks to invest it with new scientific rigour; its consistently sophisticated procedural self-awareness marks it as a key text in the history of science. This book is a sustained methodological exploration of Ptolemy's project. After an analysis of his explicit pronouncements on the science's aims and the methods appropriate to it, it examines Ptolemy's conduct of his investigation in detail, concluding that despite occasional uncertainties, (...) the declared procedure is followed with remarkable fidelity. Ptolemy pursues tenaciously his novel objective of integrating closely the project's theoretical and empirical phases and shows astonishing mastery of the concept, the design and the conduct of controlled experimental tests. By opening up this neglected text to historians of science, the book aims to provide a point of departure for wider studies of Greek scientific method. (shrink)

It seems to be generally accepted that (a) counterfactual conditionals are to be analysed in terms of possible worlds and inter-world relations of similarity and (b) causation is conceptually prior to counterfactuals. I argue here that both (a) and (b) are false. The argument against (a) is not a general metaphysical or epistemological one but simply that, structurally speaking, possible worlds theories are wrong: this is revealed when we try to extend them to cover the case of probabilistic counterfactuals. Indeed (...) a type of counterfactual probability exists which cannot be expressed in possible worlds terms at all. The argument against (b) emerges when we look at the form of an adequate account of both probabilistic and non-probabilistic counterfactuals. I do this by sketching and defending an approach to counterfactuals that, first, invoke a generalized notion of cause as primitive and, secondly, is algorithmic in form: counterfactuals are evaluated algorithmically in terms of other counterfactuals, without vicious circularity. Structures like possible worlds do not play a role either in general truth-conditions or in evaluation. They are simply the wrong sorts of structures. (shrink)