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)

In recent years, compatibilism has been the target of two powerful challenges. According to the consequence argument, if everything we do and think is a consequence of factors beyond our control (past events and the laws of nature), and the consequences of what is beyond our control are themselves beyond our control, then no one has control over what they do or think and no one is responsible for anything. Hence, determinism rules out responsibility. A different challenge--here called the manipulation (...) argument--is that by allowing agents to be fully determined compatibilist accounts of practical freedom and responsibility are unable to preclude those who are subject to global manipulation from being free and responsible. (shrink)

In "Omniprescient Agency" (Religious Studies 28, 1992) David P. Hunt challenges an argument against the possibility of an omniscient agent. The argument—my own in "Agency and Omniscience" (Religious Studies 27, 1991)—assumes that an agent is a being capable of intentional action, where, minimally, an action is intentional only if it is caused, in part, by the agent's intending. The latter, I claimed, is governed by a psychological principle of "least effort," viz., that no one intends without antecedently feeling that (i) (...) deliberate effort is needed to achieve desired goals, (ii) such effort has a chance of success, and (iii) it is yet contingent whether the effort will be expended and the goals realized. The goals can be anything from immediate intentional doings, tryings or basic actions, to remote and perhaps unlikely consequences of actions, e.g., global justice. The thrust of the principle is that it would be impossible for a wholly rational self-aware agent to intend without a background presumption of an open future as concerns the desired state and the means to it. But this presumption embodies a sense of contingency which, in turn, requires an acknowledged ignorance about what the future holds, otherwise the future would appear closed relative to present knowledge with the desired state presented as either guaranteed (necessary) or ruled out (impossible). Regardless whether this self-directed attitude is accurate, it follows that intentional action precludes complete knowledge of one's present and future. Consequently, no omniscient or omniprescient being can be an agent. (shrink)

In ‘Omniprescient Agency’ David P. Hunt challenges an argument against the possibility of an omniscient agent. The argument – my own in ‘Agency and Omniscience’ – assumes that an agent is a being capable of intentional action, where, minimally, an action is intentional only if it is caused, in part, by the agent's intending. The latter, I claimed, is governed by a psychological principle of ‘least effort’, namely, that no one intends without antecedently feeling that deliberate effort is needed to (...) achieve desired goals, such effort has a chance of success, and it is yet contingent whether the effort will be expended and the goals realized. The goals can be anything from immediate intentional doings, tryings or basic actions, to remote and perhaps unlikely consequences of actions, e.g. global justice. The thrust of the principle is that it would be impossible for a wholly rational self-aware agent to intend without a background presumption of an open future as concerns the desired state and the means to it. But this presumption embodies a sense of contingency which, in turn, requires an acknowledged ignorance about what the future holds, otherwise the future would appear closed relative to present knowledge with the desired state presented as either guaranteed or ruled out . Regardless whether this self-directed attitude is accurate, it follows that intentional action precludes complete knowledge of one's present and future. Consequently, no omniscient or omniprescient being can be an agent. (shrink)