Online research in philosophy

Sydney Shoemaker has attempted to save mental causation by a new account of realization. As Brian McLaughlin argues convincingly, the account has to face two major problems. First, realization does not guarantee entailment. So even if mental properties are realized by physical properties, they need not be entailed by them. This is the first, rather general metaphysical problem. A second problem, which relates more directly to mental causation is that Shoemaker must appeal to some kind of proportionality as a constraint on causation in order to avoid redundant mental causation. I argue that, in addition, a “piling problem” arises, since causal powers seem to be bestowed twice. Then, I try to sketch an alternative view of the relation between causal powers and properties—a reductionist view—which fares better on some accounts. But it may have to face another and, perhaps, serious problem, the “problem of the natural unity of properties”. Finally, I will pose a question about the relation between causal powers and causation.

Owens (1993) argues that one cannot accept the anti-individualistic conclusions of arguments inspired by Twin Earth thought experiments and still maintain that folk psychological states causally explain behavior. Saidel (1994) has argued that Owens' argument illegitimately individuates the contents of folk psychological states widely and causal powers narrowly. He suggests that causal powers may well be wide, and that the conditions that militate in favor of wide content also militate in favor of wide causal powers; mutatis mutandis for narrow content and narrow causal powers. I argue that these suggestions are in error, and hence that Saidel's criticism is ineffective. Owens' original point is therefore likely to stand.

of (from British Columbia Philosophy Graduate Conference) In response to the “Causal Drainage” objection to his Supervenience Argument, Kim introduces micro-based properties and argues that their presence prohibits any causal drainage between metaphysical levels. Noordhof disagrees and instead argues that the causal powers of the �micro-bases� of micro-based properties seem to preempt the causal powers of micro-based properties, in much the same way as Kim claims the powers of subvening base properties preempt the powers of supervenient properties. Thus Noordhof argues that the causal powers of higher-level micro-based properties still seem to drain downward to their lower-level micro-bases. In this paper I will defend Noordhof and argue that in fact this drainage is due to the fact that micro-based properties seem to supervene on their micro-bases. I thus argue that micro-based properties fall victim to the very same Supervenience Argument that Kim himself presents and I conclude that even micro-based properties turn out to be causally impotent if Kim�s Supervenience Argument is sound.

In this paper it will be argued that causal laws describe the actions of causal powers. The process which results from such an action is one which belongs to a natural kind, the essence of which is that it is a display of this causal power. Therefore, if anything has a given causal power necessarily, it must be naturally disposed to act in the manner prescribed by the causal law describing the action of this causal power. In the formal expressions of causal laws, the necessity operators occur within the scopes of the universal quantifiers. Hence the necessities must hold of each instance. The causal laws may thus be shown to be concerned with necessary connections between events or circumstances of precisely the sort required for a decent account of singular causation.

It is quite obvious why the antireductionist picture of mental causation that rests on supervenience is an attractive theory. On the one hand, it secures uniqueness of the mental; on the other hand, it tries to place the mental in our world in a way that is compatible with the physicalist view. However, Kim reminds us that anti-reductionists face the following dilemma: either mental properties have causal powers or they do not. If they have them, we risk a violation of the causal closure of the physical domain; if they do not have them, we embrace epiphenomenalism, which denies any sort of causal powers to the mental. So, either we violate the causal closure of physics, or we end up with epiphenomenalism. The first two sections of the article describe the problem of causal exclusion and Kim’s causal dilemma. The last two introduce Horgan’s antireductionist answer and my objection to that answer.

One of several problems concerning the possibility of mental causation is that the causal potential of a supervenient property seems to be absorbed by its supervenience base if that base and the supervenient property are not identical. If the causal powers of the supervenient property are a proper subset of the causal powers of the supervenience base then, according to the causal individuation of properties, the supervenience base seems to do all the causal work and the supervenient property appears to be futile. Against this consequence it is possible to argue, first, that the relevant properties of causes must be in some sense proportional to the relevant properties of their effects and, second, that the principle of causal closure serving as a premise in the supervenience argument is probably false. The constraint that the relevant properties of causes should be proportional to the relevant properties of their effects together with the falsity of the closure principle leads to a restoration of the causal efficacy of supervenient properties.

Horgan claims that physicalism requires "superdupervenience" -- supervenience plus robust ontological explanation of the supervenient in terms of the base properties. I argue that Horgan's account fails to rule out physically unacceptable emergence. I rather suggest (in the earliest explicit presentation of the powers-based subset strategy) that this and other unacceptable possibilities may be ruled out by requiring that each individual causal power in the set associated with a given supervenient property be numerically identical with a causal power in the set associated with its base property. Satisfying this condition is all that is needed to render supervenience superduper. I go on to show that a wide variety of physicalist accounts, both reductive and non-reductive, are implicitly or explicitly designed to meet this condition, and so are more similar than they seem.

In this paper, I explore the notion of a “causal power”, particularly as it is relevant to a theory of properties whereby properties are individuated by the causal powers they bestow on the objects that instantiate them. I take as my target certain eliminativist positions that argue that certain kinds of properties (or relations) do not exist because they fail to bestow unique causal powers on objects. But the notion of a causal powers is inextricably bound up with our notion of what an event is, and not only is there disagreement as to which theory of events is appropriate, but on the three prevailing theories, it can be shown that the eliminativists arguments do not follow.