Determinism is a claim about the laws of nature: very roughly, it is the claim that everything that happens is determined by antecedent conditions together with the natural laws. Incompatibilism is a philosophical thesis about the relevance of determinism to free will: that the truth of determinism rules out the existence of free will. The incompatibilist believes that if determinism turned out to be true, it would also be true that we don't have, and have never had, free will. The (...) compatibilist denies that determinism has the consequences the incompatibilist thinks it has. According to the compatibilist, the truth of determinism does not preclude the existence of free will. (Even if we learned tomorrow that determinism is true, it might still be true that we have free will.) The philosophical problem of free will and determinism is the problem of understanding, how, if at all, the truth of determinism might be compatible with the truth of our belief that we have free will. That is, it's the problem of deciding who is right: the compatibilist or the incompatibilist. (shrink)

The Consequence Argument is a staple in the defense of libertarianism, the view that free will is incompatible with determinism and that humans have free will. It is often thought that libertarianism is consistent with a certain naturalistic view of the world — that is, that libertarian free will can be had without metaphysical commitments beyond those pro- vided by our best (indeterministic) physics. In this paper, I argue that libertarians who endorse the Consequence Argument are forced to reject this (...) naturalistic worldview, since the Consequence Argument has a sis- ter argument — I call it the Supervenience Argument — which cannot be rejected without threatening either the Consequence Argument or the naturalistic worldview in question. (shrink)

According to classical theism, the universe depends on God in a way that goes beyond mere (efficient) causation. I have previously argued that this ‘deep dependence’ of the universe on God is best understood as a type of grounding. In a recent paper in this journal, Aaron Segal argues that this doctrine of deep dependence causes problems for creaturely free will: if our choices are grounded in facts about God, and we have no control over these facts, then we do (...) not control our choices and are therefore not free. This amounts to a grounding analogue of the Consequence Argument for the incompatibility of free will and determinism. If successful, it would have application beyond classical theism: similar concerns would apply to any view that takes our choices to be grounded in a deeper reality which is beyond our control. However, I show that the argument is not successful. Segal’s Grounding Consequence Argument is so closely analogous to the Causal Consequence Argument that any response to the one provides a response to the other. As a result, if you don’t think that prior causes (whether deterministic or indeterministic) undermine free will, you shouldn’t think that prior grounds undermine free will. (shrink)

Peter van Inwagen contends that free will is a mystery. Here I present an argument in the spirit of van Inwagen's. According to the Assimilation Argument, libertarians cannot plausibly distinguish causally undetermined actions, the ones they take to be exercises of free will, from overtly randomized outcomes of the sort nobody would count as exercises of free will. I contend that the Assimilation Argument improves on related arguments in locating the crucial issues between van Inwagen and libertarians who hope to (...) demystify free will, while avoiding objections these arguments have faced. (shrink)

The consequence argument purports to show that determinism is true only if no one has free will. Judgments about whether the argument is sound depend on how one understands locutions of the form 'p and no one can render p false'. The main interpretation on offer appeals to counterfactual sufficiency: s can render p false just in case there is something s can do such that, were s to do it, p would be false; otherwise, s cannot render p false. (...) Here I show that, in the context of the consequence argument, this interpretation conflicts with widely endorsed principles governing the logic of counterfactuals. (shrink)

This thesis investigates the conceptual relationship between laws of nature and free will. In order to clarify the discussion, I begin by distinguishing several questions with respect to the nature of a law: i) do the laws of nature cover everything that happens? ii) are they deterministic? iii) can there be exceptions to universal and deterministic laws? iv) do the laws of nature govern everything in the world? In order to answer these questions I look at three widely endorsed accounts (...) of laws: "Humean" regularity accounts, laws as relations among universals, and the dispositional essentialist account. I argue that there is nothing in the very nature of a law - in any of the accounts surveyed - that implies a positive answer to questions (i) and (ii). I show that this has important consequences for the free will problem. I then turn to the compatibility of free will and determinism. I focus on the Humean view and the dispositional essentialist account of laws. And the bulk of this discussion concerns the consequence argument, especially the question of whether the laws of nature are "up to us". I show that, on the dispositional conception of laws, there is no sense in which the laws of nature are up to us, contrary to the Humean view. However, this does not mean that there is no room for free will on the dispositional account. I argue that free will requires the laws of nature to be limited in scope, rather than being indeterministic. I conclude by showing that this allows one to resist the claim that indeterminism rules out free will. (shrink)

This paper introduces a new theory of moral responsibility that does not rely on any concept of human control. Since an understanding of determinism shapes the possible set of views one can take regarding control, and there is no account of control that could be held simultaneously by both compatibilists and libertarians, the “relational theory of responsibility” is meant to create a common ground between compatibilism and libertarianism which are held to be mutually exclusive. Since the relational account of responsibility (...) is to be a common ground, it must be neutral regarding the truth of determinism and indeterminism. Thus, it must also be indifferent concerning different concepts of control formed by compatibilists and libertarians. I argue that my view can be accepted by both compatibilists and incompatibilists. It makes the claim that, in order for a person to be responsible, she has to act in a certain type of situation that needs to be such that there is at least one relevantly similar situation in which the agent refrains from performing the action that was executed in the original case. A person cannot be held responsible for doing what she does if no person refrains from performing that action in a relevantly similar situation. I claim that the relational theory of responsibility itself is sufficient for grounding responsibility. Since the relational account expresses responsibility without relying on any concept of control, a choice between determinism and indeterminism does not have to be made in order to establish a proper concept of moral responsibility. (shrink)

Among challenges to libertarians, the _Mind_ Argument has loomed large. Believing that this challenge cannot be met, Peter van Inwagen, a libertarian, concludes that free will is a mystery. Recently, the _Mind_ Argument has drawn a number of criticisms. Here I seek to add to its woes. Quite apart from its other problems, I argue, the _Mind_ Argument does a poor job of isolating the important concern for libertarians that it raises. Once this concern has been clarified, however, another argument (...) serves to renew the challenge. The Assimilation Argument challenges libertarians to explain how ostensible exercises of free will are relevantly different from other causally undetermined outcomes, outcomes that nobody would count as exercises of free will. In particular, libertarians must explain how agents can have the power to settle which of two causally possible futures becomes the actual future. This will require them to distinguish cases where this power is supposedly present from similar cases where it’s clearly absent. (shrink)

In this paper I seek to defend libertarianism about free will and moral responsibility against two well-known arguments: the luck argument and the Mind argument. Both of these arguments purport to show that indeterminism is incompatible with the degree of control necessary for free will and moral responsibility. I begin the discussion by elaborating these arguments, clarifying important features of my preferred version of libertarianism—features that will be central to an adequate response to the arguments—and showing why a strategy of (...) reconciliation (often referred to as “deliberative libertarianism”) will not work. I then consider four formulations of the luck argument and find them all wanting. This discussion will place us in a favorable position to understand why the Mind argument also fails. (shrink)

The Mind Argument is an argument for the incompatibility of indeterminism and anyone's having a choice about anything that happens. Peter van Inwagen rejects the Mind Argument not because he is able to point out the flaw in it, but because he accepts both that determinism is incompatible with anyone's having a choice about anything that happens and that it is possible for someone to have a choice about something that happens. In this paper I first diagnose and clear up (...) a confusion in recent discussions of the Mind Argument and then go on to show why it is a bad argument. (shrink)