The new dispositionalists defend the position that an agent in a deterministic Frankfurt-style case has the ability to do otherwise, where that ability is the one at issue in the principle of alternative possibilities. Focusing specifically on Kadri Vihvelin's proposal, I argue against this position by showing that it is incompatible with the existence of structurally similar cases to FSCs in which a preemptive intervener bestows an agent with an ability.

This book examines three issues: the principle of ought implies can ; the principle of alternate possibilities ; and Kant’s views on the duty to promote one’s own happiness. It argues that although Kant was wrong to deny such a duty, the part of his denial that rests on a conception of duty incorporating both OIC and PAP is sound.

In _Living Without Free Will_, I develop and argue for a view according to which our being morally responsible would be ruled out if determinism were true, and also if indeterminism were true and the causes of our actions were exclusively events.¹ Absent agent causation, indeterministic causal histories are as threatening to moral responsibility as deterministic histories are, and a generalization argument from manipulation cases shows that deterministic histories indeed undermine moral responsibility. Agent causation has not been ruled out as (...) a coherent possibility, but it is not credible given our best physical theories. Hence we must take seriously the prospect that we are not free in the sense required for moral responsibility. I call the resulting view _hard incompatibilism_. Furthermore, contrary to widespread belief, a conception of life without free will would not at all be devastating to morality or to our sense of meaning in life, and in certain respects it may even be beneficial. (shrink)

The principle of alternate possibilities (PAP), making the ability to do otherwise a necessary condition for moral responsibility, is supposed by Harry Frankfurt, John Fischer, and others to succumb to a peculiar kind of counterexample. The paper reviews the main problems with the counterexample that have surfaced over the years, and shows how most can be addressed within the terms of the current debate. But one problem seems ineliminable: because Frankfurt''s example relies on a counterfactual intervener to preclude alternatives to (...) the person''s action, it is not possible for it to preclude all alternatives (intervention that is contingent upon a trigger cannot bring it about that the trigger never occurred). This makes it possible for the determined PAPist to maintain that some pre-intervention deviation is always available to ground moral responsibility. In reply, the critic of PAP can examine all the candidate deviations and argue their irrelevance to moral responsibility (a daunting prospect); or the critic can dispense with counterfactual intervention altogether. The paper pursues the second of these strategies, developing three examples of noncounterfactual intervention in which (i) the agent has no alternatives (and a fortiori no morally relevant alternatives), yet (ii) there is just as much reason to think that the agent is morally responsible as there was in Frankfurt''s original example. The new counterexamples do suffer from one liability, but this is insufficient in the end to repair PAP''s conceptual connection between moral responsibility and alternate possibilities. (shrink)

_A philosophical analysis of free will and the relativity of values._.