Should neutral monism be reconsidered? Classic NM (Mach James Russell) is examined first, and its fundamental theses identified. The second half of the paper looks at recent contemporary variants.

An overview of the problem of constructing extension combinatorially from qualities cum dispositional powers. In the model recommended here, Grassmann's algebra provides the combinatorial structure while Machian elements give the content.

Those who hold that all fundamental sparse properties have dispositional essences face a problem with structural (e.g. geometrical) properties. In this paper I consider a further route for the dispositional monist that is enabled by the requirement that physical theories should be background-free. If this requirement is respected then we can see how spatial displacement can be a causally active relation and hence may be understood dispositionally.

Dispositional monism is the view that natural properties and relations are ‘pure powers’. It is objected that dispositional monism involves some kind of vicious or otherwise unpalatable regress or circularity. I examine ways of making this objection precise. The most pressing interpretation is that is fails to make the identities of powers determinate. I demonstrate that this objection is in error. It does however puts certain constraints on what the structure of fundamental properties is like. I show what a satisfactory (...) structure would be. (shrink)

Let us call a property that is essentially dispositional a potency.1 David Armstrong thinks that potencies do not exist. All sparse properties are essentially categorical, where sparse properties are the explanatory properties of the type science seeks to discover. An alternative view, but not the only one, is that all sparse properties are potencies or supervene upon them. In this paper I shall consider the differences between these views, in particular the objections Armstrong raises against potencies.

Dispositional essentialism, a plausible view about the natures of (sparse or natural) properties, yields a satisfying explanation of the nature of laws also. The resulting necessitarian conception of laws comes in a weaker version, which allows differences between possible worlds as regards which laws hold in those worlds and a stronger version that does not. The main aim of this paper is to articulate what is involved in accepting the stronger version, most especially the consequence that all possible properties exist (...) in all worlds. I also suggest that there is no particularly strong reason for preferring the weaker to the stronger version. For example, Armstrong's instantiation condition on universals entails that according to strong necessitarianism every property is instantiated in all possible worlds. But first we do not need to accept Armstrong's instantiation condition, in part because his arguments for it are forceful only for a contingentist about laws and properties. Secondly, even if we do accept the condition, the consequence that all properties are instantiated is not itself contradictory, so long as any form of necessitarianism holds. Strong necessitarianism is prima facie counter-intuitive. But for that matter so is weak necessitarianism. Accepting either weak or strong necessitarianism requires denying the force of intuition in this area. And indeed we have every reason to deny the force of intuition and its primary source, imagination, concerning modal facts. (shrink)

Dispositional essentialists claim that dispositional properties are essentially dispositional: a property would not be the property it is unless it carried with it certain dispositional powers. Categoricalists about dispositional properties deny this, asserting that the same properties might have had different dispositional powers, had the contingent laws of nature been otherwise.

One view of the nature of properties has been crystallized in recent debate by an identity thesis proposed by Shoemaker. The general idea is that there is for behaviour. Well-known criticisms of this approach, however, remain unanswered, and the details of its connections to laws nothing more to being a particular causal property than conferring certain dispositions of nature and the precise ontology of causal properties stand in need of development. This paper examines and defends a dispositional essentialist account of (...) causal properties, combining a Shoemaker-type identity thesis with a Dretske, Tooley, and Armstrong-type view that laws are relations between properties, and a realism about dispositions. The property identity thesis is defended against standard epistemological and metaphysical objections. The metaphysics of causal properties is then clarified by a consideration of the laws relating them, vacuous laws, and ceteris paribus law statements. (shrink)

In this paper, I distinguish between two varieties of actualism—hardcore actualism and softcore actualism—and I critically discuss Ross Cameron’s recent arguments for preferring a softcore actualist account of the truthmakers for modal truths over hardcore actualist ones. In the process, I offer some arguments for preferring the hardcore actualist account of modal truthmakers over the softcore actualist one.

Humean metaphysics is characterized by a rejection of necessary connections between distinct existences. Dispositionalists claim that there are basic causal powers. The existence of such properties is widely held to be incompatible with the Humean rejection of necessary connections. In this paper I present a novel theory of causal powers that vindicates the dispositionalist claim that causal powers are basic, without embracing brute necessary connections. The key assumptions of the theory are that there are natural types of causal processes, and (...) that manifestations of powers are identified with certain kinds of causal processes. From these assumptions, the modal features of powers are explained in terms of internal relations between powers themselves and the process-types in which powers are manifested. (shrink)

In this paper, my central aim is to defend the Powers Theory of causation, according to which causation is the exercise of a power (or manifestation of a disposition). I will do so by, first, presenting a recent version of the Powers Theory, that of Mumford (Forthcoming). Second, I will raise an objection to Mumford’s account. Third, I will offer a revised version that avoids the objection. And, fourth, I will end by briefly comparing the proposed Powers Theory with the (...) Neo-Humean, counterfactual theory. (shrink)

The development of a compositional model shows the incoherence of such notions as levels of being and both bottom-up and top-down causality. The mathematization of nature through the partial considerations of physics qua quantities is seen to lead to Pythagoreanism, if what is not included in the partial consideration is denied. An ontology of only probabilities, if not Pythagoreanism, is equivalent to a world of primitive dispositionalities. Problems are found with each. There is a need for properties as well as (...) quantities and these properties must be qualitative as well as dispositional. So there is a need for physical qualia (qualities) for the depiction of the intrinsic character of the finest interstices of nature. (shrink)

This book advocates dispositional essentialism, the view that natural properties have dispositional essences.1 So, for example, the essence of the property of being negatively charged is to be disposed to attract positively charged objects. From this fact it follows that it is a law that all negatively charged objects will attract positively 10 charged objects; and indeed that this law is metaphysically necessary. Since the identity of the property of being negatively charged is determined by its being related in a (...) certain way to the property of being positively charged, in any world in which these properties exist they must be related so that all negatively charged objects attract positively charged objects. 15 Bird opposes his dispositional essentialism to the view that properties are categorical in nature, with their identities grounded in quiddities that are not exhausted by their relations to other properties. The main exponents of this view are D.M. Armstrong and David Lewis. They take the laws of nature to be contingent though they entertain very different views about their nature: Armstrong is a necessitarian 20 about laws, taking them to be relations of nomic necessitation between universals, while Lewis is a Humean about laws who takes them to be a special kind of regularity. The book is a sustained defence of the dispositional essentialist conception of properties and laws against the competing conceptions espoused by Armstrong and Lewis. One rough way to characterize the difference between these conceptions is to say that 25 the categoricalist sees properties as passive and inert with the laws of nature being fixed independently of the nature of properties whereas, in contrast, the dispositional essentialist sees properties as active potencies from which the laws of nature automatically spring. A slightly more tendentious way to express the difference is to say, as Bird does, that the categoricalist views embrace the Humean doctrine that there are no 30 necessary connexions in nature, while the dispositional essentialist view, on the other hand, repudiates this doctrine.. (shrink)

Does A cause B simply if A prevents what would have prevented B? Such a case is known as double prevention: where we have the prevention of a prevention. One theory of causation is that A causes B when B counterfactually depends on A and, as there is such a dependence, proponents of the view must rule that double prevention is causation.

However, if double prevention is causation, it means that causation can be an extrinsic matter, that the cause and effect (...) need not be connected by a continuous chain of events, that there can be causation by absence, and that there can be causation at a distance. All of these implications jar with strong intuitions we have about the nature of causation. There is, on the other hand, a theory of causation based on an ontology of real dispositions, where causation involves the passing around of powers. This theory in contrast entails that double prevention is not causation and, on this issue, it can claim a victory over the counterfactual dependence account. (shrink)

Averill (1990) argues that not every property is a disposition. I claim here that his reasoning is faulty, suffering at one point from a logical error and at other points from an inadequate account of counterfactuals.

Press a square paperweight into a lump of soft clay. What results is a square impression. Could a circular impression have resulted instead? The answer seems to be No. In this paper, I take this and similar examples as evidence for power essentialism, the thesis that the powers bestowed by a property are essential to it. I spend most of the paper trying to answer a few arguments against the evidential value of such examples: (1) there is the appearance of (...) necessity here, but it is of the wrong sort of necessity, say, mere nomological necessity; (2) one gets the appearance of necessity only if powers (such as rigidity) are held fixed, rendering the examples useless as evidence for power essentialism; (3) the examples are too simple, too crudely mechanistic. (shrink)

forthcoming in Philosophy and Phenomenological Research.

Many of us were raised to believe the following story. By the end of the nineteenth century, darkness was over the surface of the deep. Philosophy was dominated by neo-Hegelian monistic idealism, and plunged into obscurity and confusion. And then there was light. As the twentieth century dawned, Russell and Moore separated from the neo-Hegelians by defending external relations, pluralism, realism, clarity, and all that is Good. The creation myth of analytic philosophy—like many founding myths—contains some traces of truth. By (...) the end of the nineteenth century, philosophy was indeed dominated by neo-Hegelian monistic idealism. Russell and Moore did indeed separate from the neo-Hegelians by defending external relations, pluralism, and realism. Russell and Moore were much clearer than their predecessors, and this was Good. But the neo-Hegelians actually had an argument for their monism—the argument from internal relatedness—which went misunderstood, and which may even be sound. Or so I will argue. Overview of the argument: The argument from internal relatedness, as I will reconstruct it, proceeds in two stages. First, it is argued that all things are internally related in ways that render them interdependent. Second, the substantial unity of the whole universe is inferred from the interdependence of all of its parts. Overall the argument runs from universal internal relatedness to priority monism. The guiding idea is that failure of free recombination is the modal signature of an integrated monistic cosmos. Overview of the paper: In section 1 I will clarify the key concepts of monism, priority, internal relatedness, and free recombination. In section 2 I will consider the second stage of the argument—from universal internal relatedness to monism—and provide some proofs. In section 3 I will turn to the first stage of the argument—that all things are internally related—and show how some plausible contemporary views vindicate this claim. I will conclude in section 4 by considering how the pluralist might respond.. (shrink)

.  Is the relation between properties and the causal powers they confer necessary, or contingent? Necessary, says Sydney Shoemaker on pain of skepticism about the properties. Contingent, says David Lewis, swallowing the skeptical conclusion. I shall argue that Lewis is right about the metaphysics, but that Shoemaker and Lewis are wrong about the epistemology. Properties have intrinsic natures (quiddities), which we can know. On route I shall also argue that (i) the main necessitarian arguments do not converge on a single view, (...) (ii) properties are transworld entities that cannot be handled by counterpart theory, and (iii) quiddistic skepticism is merely external world skepticism writ small. (shrink)

It is widely believed that at least two developments in the last third of the 20th century have given dispositionalism—the view that powers, capacities, potencies, etc. are irreducible real properties—new credibility: (i) the many counterexamples launched against reductive analyses of dispositional predicates in terms of counterfactual conditionals and (ii) a new anti-Humean faith in necessary connections in nature which, it is said, owes a lot to Kripke’s arguments surrounding metaphysical necessity. I aim to show in this paper that necessity is, (...) in fact, of little help for the dispositionalists. My argument makes use of one of the above mentioned counterexamples against Humean reduction: antidotes. Turning the tables, I ask how the dispositionalists themselves can deal with antidotes. The result will be to show that if the dispositionalists are to demystify antidote cases, they must make plausible a conceptualisation of dispositions that does not invoke any kind of necessity. I will cautiously suggest that the anti-Humean link dispositions bring to the world has to be thought of in terms of (Newtonian) forces. (shrink)

– The conjunction of three plausible theses about the nature of causal powers—that they are intrinsic, that their effects are produced mutually, and that the manifestations they are for are essential to them—leads to a problem concerning the ability of causal powers to work together to produce manifestations. I call this problem the problem of fit. Fortunately for proponents of a power-based metaphysic, the problem of fit is not insurmountable. Fit can be engineered if powers are properties whose natures are (...) determined holistically. However, this power holism does not come without a cost, as a power-based metaphysic must be supplemented by a certain amount of additional machinery in order to avoid the problem. (shrink)

Horgan (1993) proposed that "superdupervenience" - supervenience preserving physicalistic acceptability - is a matter of robust explanation. I argued against him (1999) that (as nearly all physicalist and emergentist accounts reflect) superdupervenience is a matter of Condition on Causal Powers (CCP): every causal power bestowed by the supervenient property is identical with a causal power bestowed by its base property. Here I show that CCP is, as it stands, unsatisfactory,for on the usual understandings of causal power bestowal, it is trivially (...) satisfied or falsified. I offer a revision of CCP which incorporates the evident fact that causal powers are grounded in fundamental forces. (shrink)