In this paper, I present a critique of taxonomic pluralism, namely the view that there are multiple correct ways to classify entities into natural kinds within a given scientific domain. I argue that taxonomic pluralism, as an anti-essentialist position, fails to provide a realist alternative to taxonomic monism, i.e., the view that there is only one correct way to classify entities into natural kinds within a given scientific domain. To establish my argument, I first explain why the (...) naturalist approach to natural kinds adopted by pluralists requires them to give up the mind-independence criterion of reality presupposed by monists. Next, I survey two types of pluralist account. I argue that, while the modest pluralist account is not pluralistic enough, the radical pluralist account fails to come up with an alternative criterion of reality that is robust enough to differentiate its position from anti-realism about natural kinds. I conclude by drawing out the implications of my critique for the essentialism/anti-essentialism debate about natural kinds. (shrink)

In a shift of position that has gone largely unnoticed by the great majority of commentators, Thomas Kuhn's version of the incommensurability thesis underwent a major transformation over the last decade and a half of his life. In his later work, Kuhn argued that incommensurability is a relation of translation failure between local subsets of interdefined theoretical terms, which encapsulate the taxonomic structure of a theory. Incommensurability arises because it is impossible to transfer the natural categories employed within one (...) taxonomic structure into the categorial system of another such structure. Apparently on the basis of such taxonomic incommensurability, Kuhn asserted a number of antirealist theses about truth, reference and reality. In this paper, it will be argued, however, that, far from leading to antirealist consequences about the relationship between theory and reality, the taxonomic incommensurability thesis may be incorporated unproblematically within a reasonably robust scientific realist framework. (shrink)

This paper offers an overview of "the species problem", arguing for a view of species as homeostatic property cluster kinds, positioning the resulting form of realism about species as an alternative to the claim that species are individuals and pluralistic views of species. It draws on taxonomic practice in the neurosciences, especially of neural crest cells and retinal ganglion cells, to motivate both the rejection of the species-as-individuals thesis and species pluralism.

One class of central debates between normative realists appears to concern whether we should be naturalists or reductionists about the normative. However, metaethical discussion of naturalism and reduction is often inconsistent, murky, or uninformative. This can make it hard to see why commitments relative to these metaphysical categories should matter to normative realists. This paper aims to clarify the nature of these categories, and their significance in debates between normative realists. I develop and defend what I call the joint-carving taxonomy, (...) which builds on David Lewis’ notion of elite properties. I argue that this taxonomy is clear and metaphysically interesting, and answers to distinctive taxonomic interests of normative realists. I also suggest that it has important implications for the project of adjudicating debates among normative realists. (shrink)

This paper focuses on Thomas S. Kuhn's work on taxonomic concepts and how it relates to empirical work from the cognitive sciences on categorization and conceptual development. I shall first review the basic features of Kuhn's family resemblance account and compare to work from the cognitive sciences. I shall then show how Kuhn's account can be extended to cover the development of new taxonomies in science, and I shall illustrate by a detailed case study that Kuhn himself mentioned only (...) briefly in his own work, namely the discovery of X-rays and radioactivity. (shrink)

Realist philosophies of science posit a dialectical relation between theoretical, explanatory knowledge and practical, including taxonomic knowledge. This paper examines the dialectic between the theory of descent and empirical, Linnaean taxonomy which is based on a logic of traditional classes. It considers the arguments of David Hull to the effect that many of the practical problems of empirical classification can be resolved by means of an ontology based upon the theory of descent in which species taxa are regarded as (...) individuals rather than as classes or natural kinds.Contra Hull, it is argued that this view is, at best, only partially consistent with taxonomic practice and that it cannot sustain experimental practice which presupposes that species taxa be regarded as natural kinds. An outline is given of a possible alternative dialectic between a field theory of morphogenesis and a rational systematics involving a logic of relations. (shrink)

Periodic attacks of uncertain origin, where the clinical presentationresembles epilepsy but there is no evidence of a somatic disease, arecalled Pseudo-Epilepsy or Pseudo-Epileptic Attack Disorder (PEAD). PEADmay be called a `non-disease', i.e. a disorder on the fringes ofestablished disease patterns, because it lacks a rationalpathophysiological explanation. The first aim of this article is tocriticize the idea, common in medical science, that diseases are realentities which exist separately from the patient, waiting to bediscovered by the doctor. We argue that doctor and (...) patient construct adisease, and that the construction of the disease PEAD includes manynormative evaluations. The second aim is to provide insight into thesuffering of patients with PEAD. We focus on three aspects of thepatient, identity, autonomy and responsibility. We present somecharacteristic descriptions of (pseudo-)epileptic attacks by FjodorDostoevsky, Gustave Flaubert and Thomas Mann. We argue that diagnosingPEAD reduces a meaningful life event into an insignificant, thoughintriguing, medical phenomenon, and that the patient will not benefitfrom being diagnosed as having PEAD. (shrink)

Kuhn's ‘taxonomic conception’ of natural kinds enables him to defend and re-specify the notion of incommensurability against the idea that it is reference, not meaning/use, that is overwhelmingly important. Kuhn's ghost still lacks any reason to believe that referentialist essentialism undercuts his central arguments in SSR – and indeed, any reason to believe that such essentialism is even coherent, considered as a doctrine about anything remotely resembling our actual science. The actual relation of Kuhn to Kripke-Putnam essentialism, is as (...) follows: Kuhn decisively undermines it – drawing upon the inadequacies of such essentialism when faced with the failure of attempts to instantiate in history or contemporaneously its ‘thought-experiment’ – and leaves the field open instead for his own more ‘realistic’, deflationary way of thinking about the operation of ‘natural kinds’ in science. (shrink)

Classifying is a fundamental operation in the acquisition of knowledge. Taxonomic theory can help students of cognition, evolutionary psychology, ethology, anatomy, and sociobiology to avoid serious mistakes, both practical and theoretical. More positively, it helps in generating hypotheses useful to a wide range of disciplines. Composite wholes, such as species and societies, are “individuals” in the logical sense, and should not be treated as if they were classes. A group of analogous features is a natural kind, but a group (...) of homologous features is not. Imposing hypotheses justified only on the basis of nominalist, realist, phenomenalist, or conceptualist metaphysics upon the neurophysiology of organisms or upon the causes of behavior exemplifies the “psychologist's fallacy” of William James. Levels should be distinguished from their members and from classes of levels, and the ontological status of entities ranked at levels should be made clear. It is important not to confuse such categories as substance and process with one another. Several genetical terms, such as “gene” and chromosome,” are even more equivocal than has been realized. Discussions about units of selection, behavior, and thinking suffer from the ambiguity of a “unit of” an entity. An important source of misunderstanding about natural selection is the habit of treating it as an “agent”: in an important sense, natural selection does not “act” at all. (shrink)

The collection and classification of data into meaningful categories is a key step in the process of knowledge making. In the life sciences, the design of data discovery and integration tools has relied on the premise that a formal classificatory system for expressing a body of data should be grounded in consensus definitions for classifications. On this approach, exemplified by the realist program of the Open Biomedical Ontologies Foundry, progress is maximized by grounding the representation and aggregation of data on (...) settled knowledge. We argue that historical practices in systematic biology provide an important and overlooked alternative approach to classifying and disseminating data, based on a principle of coordinative rather than definitional consensus. Systematists have developed a robust system for referring to taxonomic entities that can deliver high quality data discovery and integration without invoking consensus about reality or “settled” science. (shrink)

Abstract Ontological holism is the thesis that social groups are best understood as composite material particulars. At a high level of taxonomic classification groups such as mobs, tribes and nations are the same kind of thing as organisms and artefacts. This holism is opposed by ontological individualism, which maintains that in our formal and folk social scientific discourse we only really refer to individuals and the relations in which they stand. The paper begins from the claim that ontological holism (...) is given prima facie plausibility by the apparently ineliminable role of groups in some descriptions and explanations of the social domain. If the individualist accepts the link between indispensabilty and realism, then individualism must show that groups cannot play the role the holist requires. Three arguments are considered which aim to show that groups are indeed unfitted for this ineliminable role: the appeal to reduction-in principle, the claim that groups cannot possess the causal powers attributed to them by holism, and the view that holism is committed to the attribution of mental properties to groups. Each is rejected as a basis for undermining holism. The paper concludes that this leaves holism in a position to be articulated within a framework that supports a broadly naturalist conception of the social sciences. (shrink)

This dissertation examines psychiatry from a philosophy of science perspective, focusing on issues of realism and classification. Questions addressed in the dissertation include: What evidence is there for the reality of mental disorders? Are any mental disorders natural kinds? When are disease explanations of abnormality warranted? How should mental disorders be classified? -/- In addressing issues concerning the reality of mental disorders, I draw on the accounts of realism defended by Ian Hacking and William Wimsatt, arguing that biological (...) research on mental disorders supports the inference that some mental disorders (e.g., schizophrenia, mood disorders, and anxiety disorders) are real theoretical entities, and that the evidence supporting this inference is causal and abductive. In explicating the nature of such entities, I argue that real mental disorders are natural kinds insofar as they are natural classes of abnormal behavior whose members share the same causal structure. I present this position in terms of Richard Boyd’s homeostatic cluster property theory of natural kinds, and argue that this perspective reveals limitations of Hacking’s account on the looping effects of human kinds, which suggests that the objects classified by psychiatrists are unstable entities. I subsequently argue that a subset of mental disorders (e.g., schizophrenia and Down syndrome) are mental illnesses insofar as they are disorders caused by a dysfunctional biological process that leads to harmful consequences for individuals. I present this analysis against Thomas Szasz’s argument that mental illness is a myth. -/- In addressing issues of psychiatric classification, my analysis focuses on the Diagnostic and Statistical Manual of Mental Disorders (DSM), which has been published regularly by the American Psychiatric Association since 1952, and is currently in its fourth edition. After examining the history of DSM in the twentieth century, and in particular, DSM’s shift to an atheoretical and purely descriptive system in the 1980s, I consider the relative merits of descriptive versus causal systems of classification. Drawing on Carl Hempel’s analysis of taxonomic systems in psychiatry, I argue that a causal classification system would provide a superior approach to psychiatric classification than the descriptive system currently favored by DSM. (shrink)

This article argues for a different outlook on the concept of extension, especially for the reference of general terms in scientific practice. Scientific realist interpretations of the two predominant theories of meaning, namely Descriptivism and Causal Theory, contend that a stable cluster of descriptions or an initial baptism fixes the extension of a general term such as a natural kind term. This view in which the meaning of general terms is presented as monosemantic and the referents as stable, homogeneous, and (...) unchangeable, however, does not reflect the various practices involved in the investigation of research materials and the related application of general terms in scientific practice. By drawing on the taxonomic diversity, particularly of structure-based classifications in chemical databases, this article illustrates the limited utility of such a concept of extension. Research materials often exhibit a plurality of material dimensions that, within different research contexts, allow for various and often equally significant taxonomic demarcations. In light of this, the extension of a general term cannot be uniquely determined by a supposedly independent nature of the referent but is relative to the model context under which the materials are investigated. This significance and plurality of the model context, I claim, needs to be mirrored in an account of meaning that is supposed to reflect scientific reality. On this account, the aim of this article is to present an alternative perspective on the concept of extension to accommodate the diverse material practices that determine the application of general terms in science. (shrink)

The theme of this year’s Spindel Conference was Social Ontologies of Race. This editorial introduction serves as both a general introduction to the topic of racial ontology and an introduction to this volume’s contributions. I will first explain some central ideas for discussions of ontology in general. I will then make some basic taxonomic distinctions common to discussions of racial ontology and suggest some clarifications. I will then go on to discuss the five contributions to this volume.

Big data is opening new angles on old questions about scientific progress. Is scientific knowledge cumulative? If yes, how does it make progress? In the life sciences, what we call the Consensus Principle has dominated the design of data discovery and integration tools: the design of a formal classificatory system for expressing a body of data should be grounded in consensus. Based on current approaches in biomedicine and systematic biology, we formulate and compare three types of the Consensus Principle: realist, (...) contextual-best, and coordinative. Contrasted with the realist program of the Open Biomedical Ontologies Foundry, we argue that historical practices in systematic biology provide an important and overlooked alternative based on coordinative consensus. Systematists have developed a robust system for referring to taxonomic entities that can deliver high quality data discovery and integration without invoking consensus about reality or “settled” science. (shrink)

Being and Value collects together fifteen essays by Nicholas Rescher on salient issue in metaphysics, axiology and metaphilosophy. In the way in which they shed new light on significant philosophical issues, these deliberations are emblematic of Rescher s characteristic way of illuminating timeless issues and historical perspectives in a reciprocal interrelationship. The chapter of the book are as follows: Being and Value: On the Prospect of Optimalism; On Evolution and Intelligent Design; Mind and Matter; Fallacies Regarding Free Will; Sophisticating Naive (...) Realism; Taxonomic Complexity and the Laws of Nature; Practical Vs. Theoretical Reason; Pragmatism as a Growth Industry; Cost Benefit Epistemology; Quantifying Quality; Explanatory Surdity; Can Philosophy be Objective?; On Ontology in Cognitive Perspective; Plenum Theory [Essay Written Jointly with Patrick Grim]; and Onometrics (On Referential Analysis in Philosophy)". (shrink)

My purpose is to refute the intentionalist approach to perception. Drawing from mainstream literature, I identify a principle on which any version of intentional theory relies. My paper is a detailed attack on the truth of the principle. In the first section I will introduce terminology and will taxonomize various statements of the intentional view. In the second section I will briefly outline a sketch of the skeletal intentionalist theory that develops from the assumption of the principle alone. Then, in (...) the third section, I will advance my reasons against this theory. In the fourth section, I will set forth anintuitive and definitive counterexample to the adequacy of the principle of intentionalism to accounting for ordinary perception. Moving from this, in the fifth section, I will provide some reasons explaining why intentionalism is condemned at being unsuccessful. Finally, in the last section of the paper, I will give my conclusions. (shrink)

For any area of our thought — moral, modal, scientihc, or theological we can ask what explains the way we think. After all, we might never have thought in such terms, or that sort of thought might have been different from the way it is. So there must be some explanation of why it is as it is. Such an explanation would be part of a naturalistic account of the mind.

Immanuel Kant claims that transcendental idealism yields a form of realism at the empirical level. Polite silence might best describe the reception this assertion has garnered among even sympathetic interpreters. This book challenges that prejudice, offering a controversial presentation and rehabilitation of Kant's empirical realism that places his realist credentials at the centre of the account of representation he offers in the Critique of Pure Reason. This interpretation ranges over the major themes contained in the Analytic of Principles (...) and relevant portions of the Dialectic. Kant's analysis of the conditions necessary for determinate representation is shown to involve a realist understanding of the relation of mind and world. The realist character of Kant's account of empirical truth, and his commitment to the unity of nature, are defended against competing empiricist, pragmatist, and methodological readings. This title links Kant studies to contemporary philosophical debates, and will appeal to scholars and students of Kant, as well as epistemologists, metaphysicians, and philosophers of science interested in a powerful, experience-sensitive, form of realism. (shrink)

Shech (2022) offers a critical assessment of my defense of anti-realism, developed in Resisting Scientific Realism. Induction and inductive inferences play a central role in Shech’s critical analysis of my defense of realism. I argue that Shech’s criticisms that relate to induction and inductive inference are problematic, and do not constitute a threat to my defense of anti-realism. Contrary to what Shech claims, the anti-realist does not need to explain why inductive inferences are successful. That is (...) not part of contemporary realism/anti-realism debate. Further, such a demand fails to recognise that some anti-realists do not put much stock in induction. (shrink)