Online research in philosophy

Two ways are considered of formulating a version of retentive physicalism, the view that in some important sense everything is physical, even though there do exist properties, e.g. higher-level scientific ones, which cannot be type-identified with physical properties. The first way makes use of disjunction, but is rejected on the grounds that the results yield claims that are either false or insufficiently materialist. The second way, realisation physicalism, appeals to the correlative notions of a functional property and its realisation, and states, roughly, that any actual property whatsoever is either itself a physical property or else is, ultimately, realised by instances of physical properties. Realisation physicalism is distinctive since it makes no claims of identity whatsoever, and involves no appeal to the dubious concept of supervenience. After an attempt to formulate realisation physicalism more precisely, I explore a way in which, in principle, we could obtain evidence of its truth.

In this paper I first examine two important assumptions underlying the argument that physicalism entails panpsychism. These need unearthing because opponents in the literature distinguish themselves from Strawson in the main by rejecting one or the other. Once they have been stated, and something has been said about the positions that reject them, the onus of argument becomes clear: the assumptions require careful defence. I believe they are true, in fact, but their defence is a large project that cannot begin here. So, in the final section I comment on what follows if they are granted. I agree with Strawson that --broadly -- 'panpsychism' is the direction in which philosophy of mind should be heading; nevertheless, there are certain difficulties in the detail of his position. In light of these I argue for changes to the doctrine, bringing it into line with the slightly.

Galen Strawson (2006) thinks it is 'obviously' false that 'the terms of physics can fully capture the nature or essence of experience' (p. 4). He also describes this view as 'crazy' (p. 7). I think that he has been carried away by first impressions. It is certainly true that 'physicSalism', as he dubs this view, is strongly counterintuitive. But at the same time there are compelling arguments in its favour. I think that these arguments are sound and that the contrary intuitions are misbegotten. In the first two sections of my remarks I would like to spend a little time defending physicSalism, or 'straightforward' physicalism, as I shall call it ('S' for 'straightforward', if you like). I realize that the main topic of Strawson's paper is panpsychism rather than his rejection of straightforward physicalism. But the latter is relevant as his arguments for panpsychism depend on his rejection of straightforward physicalism, in ways I shall explain below.

Strawson’s challenging and provocative defence of panpsychism1 begins by sensibly insisting that physicalism, properly understood, must unflinchingly countenance the occurrence of conscious experiences. No view, he urges, will count as ‘real physicalism’ (p. 4) if it seeks to get around or soften that commitment, as versions of socalled physicalism sometimes do. Real physicalism (hereinafter physicalism tout court) must accordingly reject any stark opposition of mental and physical, which is not only invoked by many followers of Descartes, but even countenanced by many recent physicalists. Conscious experiences, Strawson persuasively urges, are a special case of the physical, just as cows are animals. Panpsychism enters the picture because, despite the physical nature of conscious experiences, Strawson maintains that we cannot describe or explain the experiential using the terms of physics or neurophysiology. Since the experiential is nonetheless physical, Strawson concludes that the physical ultimates must, in addition to whatever properties physics and neurophysiology reveal, have experiential properties as well. Strawson argues that we cannot avoid this conclusion by maintaining that combinations of physical ultimates constitute or give rise to experiential properties. Physical ultimates cannot give rise to conscious experience unless those ultimates are themselves in some way ‘intrinsically experiential’ (p. 22). The experiential cannot emerge from nonexperiential ultimates in the way that macroscopic liquidity is standardly held to emerge from molecular properties. Strawson concludes that at least some physical ultimates must be ‘intrinsically experience-involving’ (p. 22); and, since it’s reasonable to see the physical ultimates as homogeneous in nature, we should assume that they all have experiential properties.

The aim of this thesis is to provide a theory of phenomenal consciousness which accords with both the science-friendly spirit of physicalism and the acknowledgement of panpsychism that phenomenal properties may be inextricably linked to entities, but with none of the problems associated with either type of model. Initially, physicalism and panpsychism are evaluated by the lights of their most serious problems, and solutions are offered to these problems from the point of view of a third kind of model: intrinsic naturalism, presented in the final chapter. This model holds consciousness to be among the battery of a functional system’s intrinsic (i.e. non-dispositional) properties. A definition is given, and defence made for the existence of these properties, and their compatibility with an otherwise physicalist ontology.

I find myself in agreement with almost all of Galen's paper (Strawson, 2006) -- except, that is, for his three main claims. These I take to be: that he has provided a substantive and useful definition of 'physicalism'; that physicalism entails panpsychism; and that panpsychism is a necessary and viable doctrine. But I find much to applaud in the incidentals Galen brings in to defend these three claims, particularly his eloquent and uncompromising rejection of the idea of brute emergence, as well as his dissatisfaction with standard forms of physicalism. I certainly find his paper far more on target than most of the stuff I read on this topic.