Causal overdetermination occupies an uncomfortable place within all the major theories of causation. A natural solution to the problems it gives rise to would be to resolve overdetermination into preemption or joint causation. However, such a solution would seem to lead to individuate events in a fragile manner. The issue of such modal fragility is addressed and it is argued that events designated as effects are always fragile in a natural way and the putative problems of adopting (...) modal fragility can be resolved. It is also studied whether causal overdetermination could work in a setting where the overdetermining causes occur in different levels of reality. Typically postulated higher-level causes are shown to contradict the definitional features of overdetermination. There is thus no reasonable role for causal overdetermination and the notion should be abandoned. (shrink)

Jaegwon Kim’s influential exclusion argument attempts to demonstrate the inconsistency of nonreductive materialism in the philosophy of mind. Kim’s argument begins by showing that the three main theses of nonreductive materialism, plus two additional considerations, lead to a specific and familiar picture of mental causation. The exclusion argument can succeed only if, as Kim claims, this picture is not one of genuine causal overdetermination. Accordingly, one can resist Kim’s conclusion by denying this claim, maintaining instead that the effects (...) of the mental are always causally overdetermined. I call this strategy the ‘ overdetermination challenge’. One of the main aims of this paper is to show that the overdetermination challenge is the most appropriate response to Kim’s exclusion argument, at least in its latest form. I argue that Kim fails to adequately respond to the overdetermination challenge, thus failing to prevent his opponents from reasonably maintaining that the effects of the mental are always causally overdetermined. Interestingly, this discussion reveals a curious dialectical feature of Kim’s latest response to the overdetermination challenge: if it succeeds, then a new, simpler and more compact version of the exclusion argument is available. While I argue against the consequent of this conditional, thereby also rejecting the antecedent, this dialectical feature should be of interest to philosophers on either side of this debate. (shrink)

This work explains how different theories of causation confront causal overdetermination. Chapters clarify the problem of overdetermination and explore its fundamental aspects. It is argued that a theory of causation can account for our intuitions in overdetermination cases only by accepting that the adequacy of our claims about causation depends on the context in which they are evaluated.The author proposes arguments for causal contextualism and provides insight which is valuable for resolution of the problem. -/- (...) These chapters enable readers to quickly absorb different perspectives on overdetermination and important theories of causation, therefore it is a work that will have a broad appeal. (shrink)

Compatibilists respond to the problem of causal exclusion for nonreductive physicalism by rejecting the exclusionist’s ban on overdetermination. By the compatibilist’s lights there are two forms of overdetermination, one that’s problematic and another that is entirely benign. Furthermore, multiple causation by “tightly related” causes requires only the benign form of overdetermination. Call this the tight relation strategy for avoiding problematic forms of overdetermination. To justify the tight relation strategy, modal compatibilists appeal to a widely accepted (...) counterfactual test. The argument of this paper is that the counterfactual test fails to legitimize the tight relation strategy as it fails to adequately distinguish between problematic and benign overdetermination. Contrary to modal compatibilists, modal dependence does not suffice for benignity. I conclude by arguing that adequately addressing overdetermination worries requires a much heavier metaphysical burden than modal compatibilists have typically recognized. (shrink)

Defenders of the subset view of realization have claimed that we can resolve well-known worries about mental-physical causal overdetermination by holding that mental properties are subset realized by physical properties, that instances of subset realized properties are parts of physical realizers, and that part-whole overdetermination is unproblematic. I challenge the claim that the overdetermination generated by the subset view can be legitimated by appealing to more mundane part-whole overdetermination. I conclude that the subset view does (...) not provide a unique solution to overdetermination worries. (shrink)

Causal overdetermination worries arise in a number of domains, but most notably in the philosophy of mind. ln discussions of such worries, alleged examples of causal overdetermination are uniformly viewed as primajzcie problematic. While all alleged cases of overdetermination might be problematic, I aim to show that they are so for different reasons. Examples of causal overdetermination neatly divide into three varieties, corresponding to the connections between the mechanisms and the properties of the (...) causes. Future debates over overdetermination, and mental causation in particular, should pay heed to this distinction. (shrink)

The paper argues against systematic overdetermination being an acceptable solution to the problem of mental causation within a Humean counterfactual theory of causation. The truth-makers of the counterfactuals in question include laws of nature, and there are laws that support physical to physical counterfactuals, but no laws in the same sense that support mental to physical counterfactuals.

This paper argues against dismissing the Principle of Alternative Possibilities merely on the ground of so-called Frankfurt-style cases. Its main claims are that the interpretation of such cases depends on which substantive theory of responsibility one endorses and that Frankfurt-style cases all involve some form of causal overdetermination which can be interpreted either as being compatible with the potentially manipulated agent’s ability to act otherwise or as a responsibility undermining constraint. The paper also argues that the possibility of (...) such scenarios can support the truth of classical compatibilism as much as the truth of semicompatibilism. (shrink)

Jaegwon Kim ha actualizado y resumido el problema cartesiano de la causación mental en tres ideas en conflicto: el principio deI cierre causal deI mundo fisico, la eficacia causal de la mente, y el principio de exclusión causal-explicativa (PEE). Este último principio nos dice que no puede haber dos causas/explicaciones causales que sean ambas completas e independientes para un evento determinado, salvo en casos de sobredeterminación. Aunque la forma habitual de afrontar este problema de exclusión es buscar (...) una relación de dependencia entre las propiedades físicas y las mentales, algunosfilósofos mantienen que puede tratarse de un caso de sobredeterminación. En este artículo, analizo la posibilidad de que esto sea así.Jaegwon Kim has very nicely updated and summed up Descartes’ problem of mental causation in three conflicting ideas: the principle of the causal closure of the physical, the causal efficacy of the mental, and the principle of the causal-explanatory exclusion (PEE). This last principle tells us that there cannot be two causes/causal explanations that are both complete and independent for one event, excpt in eases of overdetermination. Though the usual way to this exclusion problem is look for a dependency relation between mental and physical properties, some philosophers hold it can be a case of overdetermination. In this paper, I analyze the chances that this could be so. (shrink)

British structural-functionalist anthropology famously faces an objection that it is incapable of dealing with the influence of wider processes. An analytical response to this objection, which at least needs to be registered, is that some wider processes can be ignored when there is causal overdetermination.

The consensus is that repeatable artworks cannot be identified with particular material individuals. A perennial temptation is to identify them with types, broadly construed. Such identification, however, faces the so-called “Creation Problem.” This problem stems from the fact that, on the one hand, it seems reasonable to accept the claims that (1) repeatable artworks are types, (2) types cannot be created, and (3) repeatable artworks are created, but, on the other hand, these claims are mutually inconsistent. A possible solution to (...) the Creation Problem is to argue that claim (2) can be rejected because (a) the only motivation for it is that a type, being abstract, cannot stand in causal relations, but (b) this motivation is ungrounded, since types can, in fact, stand in such relations. Clearly, in order for this solution to be successful, it is necessary to substantiate the possibility of types to be causally efficacious. In this essay, I examine an attempt to do this with the help of Yablo’s principle of proportionality, which has been undertaken by Walters (2013) and, more recently, Juvshik (2018). Although the argument they advance may seem to provide strong support for the causal efficacy of types, I think it actually fails to do this. To explain why this is so, I first show that this argument commits us to the existence of widespread causal overdetermination involving types and then argue that this commitment is both epistemically and ontologically problematic. (shrink)

This paper studies Francisco Suárez's defence of the possibility of causal overdetermination. I show that, according to Suárez, the main arguments against the possibility of causal overdetermination rely on (i) a flawed conception of causal dependence and (ii) a flawed ontology of action. I argue that his objections to (i) and (ii) amount to a significant challenge to his opponents’ case against the possibility of causal overdetermination.

Hitchcock demonstrated that the validity of causal exclusion arguments as well as the plausibility of several of their premises hinges on the specific theory of causation endorsed. In this paper I show that the validity of causal exclusion arguments—if represented within the theory of causal Bayes nets the way Gebharter suggests—actually requires much weaker premises than the ones which are typically assumed. In particular, neither completeness of the physical domain nor the no overdetermination assumption are required.

Jaegwon Kim argues that unreduced mental causes are excluded from efficacy because physical causes are sufficient in themselves. One response to this causal exclusion argument is to embrace some form of overdetermination. In this paper I consider two forms of overdetermination. Independent overdetermination suggests that two individually sufficient causes bring about one effect. This model fails because the sufficiency of one cause renders the other cause unnecessary. Dependent overdetermination suggests that a physical cause is necessary (...) and sufficient for a given effect, but it necessitates a mental cause of the effect as well. This model fails because the necessity of the mental cause renders the physical cause individually insufficient. (shrink)

Suppose that Billy and Suzy each throw a rock at window, and either rock is sufficient to shatter the window. While some consider this a paradigmatic case of causal overdetermination, in which multiple cases are sufficient for an outcome, others consider it a case of joint causation, in which multiple causes are necessary to bring about an effect. Some hold that every case of overdetermination is a case of joint causation underdescribed: at a maximal level of description, (...) every cause is necessary to bring about the outcome in precisely the way that it occurs. -/- This paper shows the latter principle to be false. I introduce a novel class of events that are insensitive to the additive force of multiple causes. They are to be contrasted with sensitive events, which physically and counterfactually vary according to the number and sorts of causes they have. I argue that sensitive effects are symptoms of joint causation; insensitive effects are symptoms of overdetermination. Insensitive effects resulting from multiple causes cannot be classified as "joint causation underdescribed," but only as overdetermination. -/- I suggest that cases of "trumping preemption" should be understood as cases of overdetermination with insensitive effects. Consequently, Lewis' influence account of causation cannot handle these cases. (shrink)

Some theories are alleged to be implausible because they are committed to systematic ‘overdetermination’. In response, some authors defend ‘compatibilism’: the view that the putative overdetermination is benign, like other unproblematic cases of a single effect having many sufficient causes. The literature has tended to focus on the following question: which relations between sufficient causes of a single effect ensure that problematic overdetermination is avoided? This paper argues that several widely endorsed answers to this question are subject (...) to counterexample. It then proposes a diagnosis of this failure: the standard answers neglect what really matters––how the causes are connected to their shared effect. In particular, overdetermination is avoided when there are no independent causal connections. (shrink)

Jaegwon Kim argues that if mental properties are irreducible with respect to physical properties, then mental properties are epiphenomenal. I believe that this conditional is false and argue that mental properties, along with their physical counterparts, may causally overdetermine their effects. Kim contends, however, that embracing causal overdetermination in the mental case should be resisted for at least three reasons: it is implausible, it makes mental properties causally dispensable, and it violates the Causal Closure Principle. I believe, (...) however, that each of these reasons can be defeated. Moreover, further reflection on , according to Kim’s implicit logic, may lend support to the claim that physical properties, and not mental properties, are in danger of losing their causal relevance. (shrink)

This paper aims to show that a counterfactual approach to causation is not sufficient to provide a solution to the causal exclusion problem in the form of systematic overdetermination. Taking into account the truthmakers of causal counterfactuals provides a strong argument in favour of the identity of causes in situations of translevel, causation.

Analyses of factual causation face perennial problems, including preemption, overdetermination, and omissions. Arguably, the thorniest, are cases of omissive overdetermination, involving two independent omissions, each sufficient for the harm, and neither, independently, making a difference. A famous example is Saunders, where pedestrian was hit by a driver of a rental car who never pressed on the (unbeknownst to the driver) defective (and, negligently, never inspected) brakes. Causal intuitions in such cases are messy, reflected in disagreement about which (...) omission mattered. What these analyses mistakenly take for granted, is that at issue is the 'efficacy' of each omission. I argue, on the contrary, the puzzle of omissive overdetermination favors taking the act/omission distinction seriously. Factual causation, properly understood precludes omissions (i.e. omissions are not causal). Of course, the law also attaches liability to omissions, but this works differently from liability for real causes (e.g. omissions have a duty requirement, they also respond differentially to difference-making considerations). The manner in which liability attaches for omissions differs from that of straightforward causal liability, and is entirely dependent on the underlying causal structure. Attention to that structure (e.g. that the driver's hitting the pedestrian with his car is what actually caused the injury) sheds light on which omissions matter (e.g. driver's failure to press on the brakes) and why (because that failure removes a defense the driver would have to liability for the accident he caused). Other cases, where the parties' connection is entirely omissive (e.g. two physicians fail to detect independently lethal conditions), come out differently (tracking moralized elements). The analysis offered makes better sense of both why omissive determination cases are puzzling and how to resolve them. (shrink)

Compatibilists aim to solve the causal exclusion problem by arguing that a physical cause and a mental cause are compatible with each other without involving the problematic overdetermination. The purpose of this paper is twofold. First, I target at Karen Bennett’s (2003, 2008) influential compatibilist strategy—one that rests on the assumption that a mental cause is sufficient for bringing about a physical effect, just as a physical cause is. I argue that, on a plausible physicalist picture, this assumption (...) cannot be established. Second, I propose a weaker and more plausible interpretation of the mental efficacy, which takes a mental cause to be necessary (but not sufficient) for a physical effect in a counterfactual sense. The resulting picture of mental causation avoids the difficulties engendered from Bennett’s assumption and delivers fresh resources to solve the exclusion problem. (shrink)

In his article “The Blurred Line between Theistic Evolution and Intelligent Design” and his response “The Problem of Natural Divine Causation and the Benefits of Partial Causation”, Mikael Leidenhag uses Jaegwon Kim’s work on causal exclusion to critique what he calls “Natural Divine Causation” (NDC). Although I agree with Leidenhag that questions about divine action can fruitfully be posed in terms of Kim’s so-called Causal Exclusion Argument, I take issue with the way he attempts to carry out this (...) task and the reasons he offers against the overdetermination response to the Causal Exclusion Argument. (shrink)

Widespread causal overdetermination is often levied as an objection to nonreductive theories of minds and objects. In response, nonreductive metaphysicians have argued that the type of overdetermination generated by their theories is different from the sorts of coincidental cases involving multiple rock-throwers, and thus not problematic. This paper pushes back. I argue that attention to differences between types of overdetermination discharges very few explanatory burdens, and that overdetermination is a bigger problem for the nonreductive metaphysician (...) than previously thought. (shrink)

Do determinable properties such as colour, mass, and height exist in addition to their corresponding determinates, being red, having a mass of 1 kilogram, and having a height of 2 metres? Optimists say yes, pessimists say no. Among the latter are Carl Gillett and Bradley Rives who argue that optimism leads to systematic overdetermination of causal powers and hence should be rejected on the grounds that the position is ontologically unparsimonious. In this paper I defend optimism against this (...) charge by showing that overdetermination of causal powers cannot plausibly be avoided when grounding what I call joint powers. It is therefore not clear why the optimist should be worried about the overdetermination of causal powers that follows from positing determinable properties. (shrink)

This paper is about the causal exclusion argument against non-reductive physicalism. Many philosophers think that this argument poses a serious problem for non-reductive theories of the mind — some think that it is decisive against them. In the first part I will outline non-reductive physicalism and the exclusion argument. Then I will distinguish between three versions of the argument that address three different versions of non-reductive physicalism. According to the first, the relation between mental and physical events is token-identity. (...) According to the second, mental events are distinct from physical events, but the latter metaphysically include and determine the former. And on the third version, mental and physical events are entirely distinct. I will argue that the causal exclusion argument is not decisive against non-reductive physicalism in any of the three versions. According to non-reductive physicalism, mental events are dependent on physical events. Causal exclusion and overdetermination, however, requires distinct and independent causes. I will argue that the burden of proof lies with the opponents of non-reductive physicalism, who have to explain how metaphysically dependent events can possibly overdetermine an effect or exclude each other from being causally efficacious. (shrink)

Among the arguments that have been proposed for physicalism, the “causal argument” is widely taken to be the most compelling. Justin Tiehen (2015) has raised an interesting objection to this argument that takes the form of a dilemma. Tiehen’s ultimate conclusion is that at best, the causal argument is circular and so its premises cannot provide support for its conclusion, physicalism. The aim of the present paper is to respond to Tiehen’s objection in order to provide a defense (...) of the causal argument. (shrink)

The overdetermination problem has long been raised as a challenge to nonreductive physicalism. Nonreductive physicalists have, in various ways, tried to resolve the problem through appeal to counterfactuals. This essay does two things. First, it takes up the question whether counterfactuals can yield an appropriate notion of causal redundancy and argues for a negative answer. Second, it examines how this issue bears on the mental causation debate. In particular, it considers the argument that the overdetermination problem simply (...) does not arise on a dependency conception of causation and shows why this idea, though initially appealing, does not address the real problem. As the essay shows, the idea derives its spurious plausibility from the fact that the dependency conception cannot even make sense of our pretheoretic idea of causal redundancy. The essay concludes by briefly discussing a possible picture of mental causation that suggests itself in light of these results. (shrink)

Necessary-condition analyses of singular causal claims are particularly vulnerable to cases of linked overdetermination, so named because the nonoperation of the back-up factor (in fail-safe cases) or the preempted factor (in preemptive cases) is linked to the operation of the actual cause. As an example J. L. Mackie's analysis is here challenged with a simple switch-light case. Three replies are considered, a facts-vs.-events reply, a different-effect reply, and an in-the-circumstances reply. All are found deficient.

This paper examines Jaegwon Kim's Supervenience Argument (SA) against nonreductive physicalism, concentrating on Kim's response to two of the most important objections against the SA: First, the Overdetermination Argument, according to which Kim has no convincing argument against the possibility that mental causation might be a case of genuine or systematic overdetermination; second, the Generalization Argument, according to which the SA would entail that causation at any level gives way to causation at the next lower level, thereby leading (...) to an untenable all-encompassing epiphenomenalism. It is argued that as of yet, Kim has failed to develop a coherent overall position, since various moves he makes in response to these criticisms are strangely at odds with other parts of his philosophical position. (shrink)

Widespread causal overdetermination is often levied as an objection to nonreductive theories of minds and objects. In response, nonreductive metaphysicians have argued that the type of overdetermination generated by their theories is different from the sorts of coincidental cases involving multiple rock-throwers, and thus not problematic. This paper pushes back. I argue that attention to differences between types of overdetermination discharges very few explanatory burdens, and that overdetermination is a bigger problem for the nonreductive metaphysician (...) than previously thought. (shrink)

Jaegwon Kim argues that if mental properties are irreducible with respect to physical properties then mental properties are epiphenomenal. I believe this conditional is false and argue that mental properties, along with their physical counterparts, may overdetermine their effects. Kim contends, however, that embracing overdetermination in the mental case, due to supervenience, renders the attribution of overdetermination vacuous. This way of blocking the overdetermination option, however, makes the attribution of mental epiphenomenalism equally vacuous. Furthermore, according to Kim’s (...) own logic, physical properties, and not mental properties, may be in danger of losing their causal relevance. (shrink)

A much discussed argument in the philosophy of mind against non-reductive physicalism leads to the conclusion that all genuine causes involved in mental phenomena must be reductive physical causes. The latter ostensibly exclude any other causes from having genuine effects in human thought and behaviour. Jaegwon Kim has been the chief exponent of this line of argument, calling it variously the causal exclusion argument or the supervenience argument against non-reductive physicalism. I will analyse this argument and show that some (...) of its key assumptions are unwarranted. Two assumptions on which I will particularly focus are the causal closure of the physical and the prohibition against causal overdetermination when multiple sufficient causes are involved in some effect. The upshot will be that rather than lower-level physical causes always excluding or pre-empting possible mental causes, context plays a key role in determining what kinds of causation are at work in human behaviour and how those causes cooperate. (shrink)

Causal overdetermination, the existence of more than one sufficient cause for an effect, is standardly regarded as unacceptable among philosophers of mental causation. Philosophers of mind, both proponents of causal exclusion arguments and defenders of non-reductive physicalism, seem generally displeased with the idea of mental causes merely overdetermining their already physically determined effects. However, as I point out below, overdetermination is widespread in the broadly physical domain. Many of these cases are due to what I call (...) the preservation of causal sufficiency. We need therefore to be precise about what unacceptable overdetermination amounts to in order to evaluate the prospects for a non-reductive account of mental causation. I argue that in order to have a good understanding of unacceptable overdetermination we should appeal to the notion of a minimal sufficient cause. In brief, a sufficient cause is minimal if it is sufficient to bring about the effect, but not more than sufficient. One way a cause could be more than sufficient for an effect is if its existence necessitates the existence of another (simultaneous) cause that is also sufficient for the same effect. In the second half of the paper I use this revised understanding of unacceptable causal overdetermination to show that the validity of the causal exclusion argument depends on strong readings of the principle of the causal self-sufficiency of physics. These strong readings can reasonably be questioned by a believer in non-reductive accounts of mental causation. This puts the burden of argument back on the causal exclusionist. (shrink)

A typical thesis of contemporary materialism holds that mental properties and events supervene on, without being reducible to, physical properties and events. Many philosophers have grown skeptical about the causal efficacy of irreducibly supervenient properties, however, and one of the main reasons is an assumption about causation which Jaegwon Kim calls the causal exclusion principle. I argue here that this principle runs afoul of cases of genuine causal overdetermination.Many would argue that causal overdetermination is (...) impossible anyway, but a careful analysis of these arguments shows them to be misguided. Finally, I examine the reasons given in support of the causal exclusion principle, and I conclude that it is plausible if, and probably only if, a certain view of the nature of causation turns out to be correct. Since that view of causation is unacceptable to nonreductivists on other grounds, however, it turns out that exclusion-based arguments essentially beg the question. (shrink)

One way of responding to Jaegwon Kim's Causal Exclusion Argument is to argue that the relevant mental and physical properties overdetermine their effects. Insofar as this is a reasonable way of securing mental causation this presents a viable framework for understanding how divine and non-divine causes can conspire to bring about events in the world.

In this paper I discuss a famous argument for physicalism – which some authors indeed regard as the only argument for it – the overdetermination argument. In fact it is an argument that does not establish that all the entities in the world are physical, but that all those events that enter into causal transactions with the physical world are physical. As mental events seem to cause changes in the physical world, the mind is one of those things (...) that fall within the scope of the argument. Here I analyze one response to the overdetermination argument that has acquired some popularity lately, and which consists in saying that what mental events cause are not physical effects. I try to show that recent attempts to develop this response are not successful, but that there may be a coherent way of doing so. I also try to show that there seems to be a philosophical niche in which this way might fit. (shrink)

Causal overdetermination – i.e. instances in which x, y, and z all occur and intuitively the occurrence of x alone is sufficient for the occurrence of z and the occurrence of y alone is sufficient for the occurrence of z – has long been considered a problem for counterfactual analyses of causation. Intuitively, we want to say both x and y caused z, but standard Lewisian counterfactual analysis yields the result that neither x nor y caused z. David (...) Lewis, himself, suggested that overdetermination ought to be left as “spoils to the victor”. I show how, if we modify Lewis’ account of events slightly, we can bring counterfactual analysis in line with our intuitions about overdetermination. (shrink)

Do component forces exist in conjoined circumstances? Cartwright (1980) says no; Creary (1981) says yes. I'm inclined towards Cartwright's side in this matter, but find several problems with her argumentation. My primary aim here is to present a better, distinctly causal, argument against component forces: very roughly, I argue that the joint posit of component and resultant forces in conjoined circumstances gives rise to a threat of causal overdetermination, avoidance of which best proceeds via eliminativism about component (...) forces. A secondary aim is to show that rejecting component forces does not require, pace Cartwright, rejecting certain attractive theses about what laws of nature express and the role such laws play in scientific explanations. (shrink)

Physicalists motivate their position by posing a problem for the opposition: given the causal completeness of physics and the impact of the mental (or, more broadly, the seemingly nonphysical) on the physical, antiphysicalism implies that causal overdetermination is rampant. This argument is, however, equivocal in its use of 'physical'. As Scott Sturgeon has recently argued, if 'physical' means that which is the object of physical theory, completeness is plausible, but the further claim that the mental has a (...) causal impact on the physical is no longer so evident. In this paper I assess the damage due to the ambiguity of 'physical' and provide a repair to the overdetermination strategy. (shrink)

Nancy Cartwright begins her recent book, Hunting Causes and Using Them, by noting that while a few years ago real causal claims were in dispute, nowadays “causality is back, and with a vengeance.” In the case of the social sciences, Keith Morrison writes that “Social science asks ‘why?’. Detecting causality or its corollary—prediction—is the jewel in the crown of social science research.” With respect to the health sciences, Judea Pearl writes that the “research questions that motivate most studies in (...) the health sciences are causal in nature.” However, not all data used by people interested in making causal claims come from experiments that use random assignment to control and treatment groups. Indeed, much research in the social and health science depends on non-experimental, observational data. Thus, one of the most important problems in the social and health sciences concerns making warranted causal claims using non-experimental, observational data; viz., “Can observational data be used to make etiological inferences leading to warranted causal claims?” This paper examines one method of warranting causal claims that is especially widespread in epidemiology and the health sciences generally—the use of causal criteria. It is argued that cases of complex causation generally, and redundant causation—both causal overdetermination and causal preemption—specifically, undermine the use of such criteria to warrant causal claims. (shrink)

In trying to establish the view that there are no non-living macrophysical objects, Trenton Merricks has produced an influential argument—the Overdetermination Argument—against the causal efficacy of composite objects. A serious problem for the Overdetermination Argument is the ambiguity in the notion of overdetermination that is being employed, which is due to the fact that Merricks does not provide any theory of causation to support his claims. Once we adopt a plausible theory of causation, viz. interventionism, problems (...) with the Overdetermination will become evident. After laying out the Overdetermination Argument and examining one extant objection to it, I will explicate the relevant aspects of an interventionist theory of causation and provide a characterization of overdetermination that follows from such an account. From this, I will argue that the Causal Principle that undergirds the Overdetermination Argument is false and hence the argument is invalid; and I claim that the only other available characterization of overdetermination would render a key premise in the argument false. Thus, the Overdetermination Argument fails to provide us with any reason to deny the causal efficacy of macrophysical objects, and therefore provides no reason to doubt their existence. (shrink)

The argument from causal overdetermination is considered to be the shortest route to token monism. It only assumes that:1.Efficacy: Mental events are causes of physical events.2.Closure: Every physical event has a sufficient physical cause.3.Exclusion: Systematic Causal Overdetermination is impossible: if an event x is a sufficient cause of an event y then no event x* distinct from x is a cause of y.4.Identity: Therefore, mental events are physical events.Exclusion does not deny the possibility of two gunmen (...) that fi re at a victim at the same time. But event-dualism is like a systematic fi ringsquad case — whenever I want to raise my arm, my arm is raised, and that is intolerable. (shrink)