The target of this article is the claim that natural selection accounts for the multiple realisation of biological and psychological kinds. I argue that the explanation actually offered does not provide any insight about the phenomenon since it presupposes multiple realisation as an unexplained premise, and this is what does all the work. The purported explanation mistakenly invokes the ?indifference? of selection to structure as an additional explanatorily relevant factor. While such indifference can be explanatory in intentional contexts, it is (...) not a causal factor at all in non-intentional nature. The upshot is that, once the necessary initial assumption about heterogeneity is accepted, there is no further explanation to do. (shrink)

I will develop a new problem for almost all realist theories of colour. The problem involves fluctuations in our colour experiences that are due to visual noise rather than changes in the objects we are looking at.

Normative links have been considered a problem for reductionist theories of mind, primarily because of lack of isomorphism between intentional and non-intentional conceptual schemes. The paper suggests a more radical tension between normative rationality and scientific naturalism. Normative explanations involve the recognition that agents are also subjects of experience. The distinctive form of intelligibility they bestow requires engagement with such subjectivity.

It has been argued that nonreductive physicalism leads to epiphenominalism about mental properties: the view that mental events cannot cause behavioral effects by virtue of their mental properties. Recently, attempts have been made to develop accounts of causal relevance for irreducible properties to show that mental properties need not be epiphenomenal. In this paper, I primarily discuss the account of Frank Jackson and Philip Pettit. I show how it can be developed to meet several obvious objections and to capture our (...) intuitive conception of degrees of causal relevance. However, I argue that the account requires large-scale miraculous coincidence for there to be causally relevant mental properties. I also argue that the same problem arises for two apparently very different accounts of causal relevance. I suggest that this result does not show that these accounts, on appropriate readings, are false. Therefore, I tentatively conclude that we have reason to believe that irreducible mental properties are causally irrelevant. Moreover, given that there is at leastprima facie evidence that mental properties can be causally relevant, my conclusion casts doubt on nonreductive physicalist theories of mental properties. (shrink)

In this paper I argue that an important notion of reduction depends on a four-place relation holding between expressions, concepts, properties, and events or states of affairs. I define this notion and argue against alternative accounts that are based on syntactic features of theories. Whilst these latter attempts fail to deliver a satisfactory explanation of why a certain theory or a certain expression reduces to another, the former can give a complete explanation of why, say, ‛human pain’ reduces to ‛C-fiber (...) stimulation’ or why the mind reduces to the physical. I briefly sketch the difference between the semantic approach that I favor, which is based on a particular notion of hyper-intensions, and classical model-theoretic versions of reduction. (shrink)

RÉSUMÉ: La pragmatique et la sémantique de l’historiographie révèlent une fragmentation croissante qui s’étend par-delà les écoles jusqu’aux historiens individuels. Alors que les scientifiques normalisent les données pour qu’elles s’ajustent aux théories, les historiens interprètent leurs théories, de manières incompatibles entre elles, pour qu’elles s’ajustent aux différents cas historiques. Les difficultés qui en découlent dans la communication historiographique remettent en cause les philosophies herméneutiques de l’historiographie et redonnent un nouvel intérêt à la question d’une historiographie scientifique. Mais les réponses existantes (...) sont philosophiquement obsolètes. Une façon de reformuler le problème est de partir de la complexité du chaos et de l’unicité de l’histoire. Seule la science peut évaluer si les propriétés d’un domaine donné en interdisent une approche scientifique. Or la science s’étend par réductions méthodologiques explicatives, en ramenant des propriétés d’événements complexes, chaotiques et uniques, qui sont familières, mais d’un niveau plus élevé, à des propriétés ou interrelations non familières et d’un niveau moins élevé. La culture disciplinaire de l’historiographie, cependant, empêche le développement par essais et erreurs de telles tentatives de réductions scientifiques, qui seules permettraient d’évaluer les possibilités d’une historiographie scientifique, laquelle, dans la situation présente, relève de la science-fiction. (shrink)

Some contemporary theories treat phenomena like weakness of will, compulsion and wantonness as practical failures but not as failures of rationality: say, as failures of autonomy or whatever. Other current theories-the majority see the phenomena as failures of rationality but not as distinctively practical failures. They depict them as always involving a theoretical deficiency: a sort of ignorance, error, inattention or illogic. They represent them as failures which are on a par with breakdowns of theoretical reason; the failures may not (...) have exact theoretical analogues, exact analogues in the breakdown of belief, but they are of essentially the same, cognitive kind. Our approach gives us quite a different view of things. The pathologies which we identify in our taxonomy are distinctively rational failures and distinctively practical failures; they are failures of pure practical reason. (shrink)

Many have felt that it is impossible to defend autonomous laws of social science: where the regularities upheld are law-like it is argued that they are not at base social scientific, and where the phenomena to be explained would seem to require social descriptions, it is argued that laws governing the phenomena are unavailable at that level. But is it possible to develop an ontology that supports the dependence of the social on the physical, while nonetheless supporting the explanatory power (...) of genuinely autonomous social scientific laws? The aim of this paper is to show that reductive explanation is not a requirement of a `naturalist' ontology, thereby defending an account of supervenience as a suitable framework within which to recognize a metaphysical relationship between the natural and the social that is consistent with the pursuit of autonomous nomological social scientific explanations. (shrink)

Discussion of moral explanation has reached animpasse, with proponents of contemporaryethical naturalism upholding the explanatoryintegrity of moral facts and properties, andopponents – including both anti-realists andnon-naturalistic realists – insisting thatsuch robustly explanatory pretensions as moraltheory has be explained away. I propose thatthe key to solving the problem lies in thequestion whether instances of moral propertiesare causally efficacious. It is argued that,given the truth of contemporary ethicalnaturalism, moral properties are causallyefficacious if the properties of the specialsciences are. Certain objections are rebuttedinvolving (...) the nature of causation, on the onehand, and putative special features of themoral realm, on the other. (shrink)

Tim Crane's ‘Cosmic Hermeneutics vs. Emergence: The Challenge of the Explanatory Gap’ claims that non‐reductive physicalism must either close the explanatory gap, addressing the challenge famously posed by Levine's argument, or become identical to emergentism. Since no way to close the gap is available, the result is that there can be no interesting philosophical position intermediate between physicalism and emergentism. This chapter argues that if we look at the relation between physicalism and emergentism from the vantage point of reduction, Crane's (...) analysis is rather persuasive. However, if we switch from reduction to causality, its conclusions appear more disputable. In particular, if we shift from ‘novelty and explanation’ to ‘novelty and causality’ as key features of emergent properties, we may introduce a distinction between two kinds of emergentism (moderate and radical) based on their attitude towards the causal inheritance principle. If the causal inheritance principle is accepted (some versions of) moderate emergentism may be considered as non‐trivial forms of non‐reductive physicalism. (shrink)