Luck, Will, and Blame: Rethinking Moral Responsibility

Introduction: The Precarious Foundations of Blame

When we hold someone morally responsible for an action, we assume that the person could have done otherwise — that the action originated in a genuine choice, not in a causal chain extending back before their birth. This assumption is so embedded in ordinary moral life that courts distinguish premeditated murder from manslaughter, employers reward initiative over mere compliance, and friends feel betrayed rather than merely inconvenienced. Yet the philosophical foundations of this practice are far more precarious than its ubiquity suggests. The challenge from determinism — the thesis that every event, including every human decision, is the inevitable product of prior causes and natural laws — does not merely complicate moral responsibility; it seems to obliterate it. This essay argues that traditional libertarian and hard incompatibilist accounts of moral responsibility ultimately fail, but not for the reasons determinism's critics usually assume. The decisive problem is not determinism itself but moral luck: the recognition that factors entirely beyond an agent's control — birth circumstances, neurological constitution, the accidents of opportunity — shape the character from which choices emerge. A defensible position on moral responsibility must therefore be built not on the fiction of uncaused causation but on a compatibilist framework reconceived around the quality of an agent's will, with appropriate humility about the limits of blame.

The Libertarian Account and Its Internal Tensions

Traditional accounts of moral responsibility depend on what philosophers call the Principle of Alternative Possibilities (PAP): an agent is morally responsible for an action only if they could have done otherwise. The intuitive force of PAP is considerable. If a neurological condition compels a person to steal, we rightly withhold blame; if a gun is held to someone's head, coercion removes culpability. The libertarian position — which holds that genuinely free acts require that the causal sequence could have gone differently — builds on PAP to argue that moral responsibility requires a kind of causation that escapes natural law. Robert Kane, one of the most careful defenders of this view, argues that quantum-level indeterminacy in neural processes may give rise to a "self-forming action" in which the agent's own will tips a genuinely open situation in one direction (Kane 128). The appeal is that moral responsibility is grounded in something real: a moment of origination where the agent, not prior causes, is the ultimate source of the choice.

Moral Luck and the Limits of Compatibilism

This account faces a challenge that is frequently underestimated, however. Harry Frankfurt's famous thought experiments demonstrate that PAP is not a necessary condition for moral responsibility at all. Frankfurt asks us to imagine a neuroscientist who monitors a deliberating agent and stands ready to intervene to produce a specific decision — but never needs to, because the agent freely makes that decision on their own. The agent could not have done otherwise (the neuroscientist would have intervened), yet we intuitively judge the agent responsible. Frankfurt concludes that what matters is not the availability of alternatives but the internal structure of the will — whether the act flows from desires the agent endorses at a higher reflective level (Frankfurt 835). This distinction between first-order desires and second-order volitions reorients the entire debate. The question becomes not could the agent have done otherwise? but did the action originate in a will the agent identifies with? (Fischer and Ravizza 39). The implications for determinism are immediate: if alternative possibilities are not required, then the fact that determinism closes off those possibilities does not automatically extinguish responsibility.

The compatibilist framework that emerges from Frankfurt's challenge is more resilient than its critics acknowledge, but it requires confronting the deeper problem that Thomas Nagel isolated in his analysis of moral luck. Nagel observes that our actual practices of blame and praise are saturated with factors the agent does not control: circumstantial luck (whether one is ever placed in a situation that tests moral character), resultant luck (whether a reckless act causes harm or not), constitutive luck (the dispositions, temperament, and capacity for empathy one is born with), and causal luck (whether prior events caused one to be the kind of person who acts well or badly) (Nagel 28). The problem of constitutive luck is the most corrosive for traditional accounts. If a person's character — the very source from which their choices flow — is itself the product of genetics, upbringing, and social circumstance, then holding them fully responsible for actions that express that character seems to punish them for a self they did not choose. Nagel does not dissolve moral responsibility entirely, but he insists that our practices of praise and blame implicitly assume a self that stands apart from its causal history — an assumption that cannot survive honest scrutiny. Compatibilists who follow Frankfurt in locating responsibility in the quality of the will must therefore explain whose will we are assessing, if that will was shaped entirely by factors the agent never controlled.

Strawson's Reactive Attitudes and the Case for Compatibilism

The most defensible response to Nagel's challenge comes not from abandoning the quality-of-will criterion but from embedding it in what P.F. Strawson called the reactive attitudes. Strawson argued, before Frankfurt formalized the point, that moral responsibility is not a metaphysical fact to be discovered but a practice sustained by the human stance of holding one another to account (Strawson 6). When we feel resentment toward someone who wrongs us, or gratitude toward someone who helps us at personal cost, we are not making a claim about causal chains; we are engaging with others as persons rather than as objects. On this view, compatibilism does not need to show that an agent transcends their causal history. It needs to show that the reactive attitudes are coherent responses to beings who possess certain capacities — the capacity to understand reasons, to be moved by moral considerations, to respond to criticism. Determinism is compatible with all of these capacities existing, even if those capacities were themselves the product of prior causes. What would excuse a person from reactive attitudes is not the mere fact that their action was caused, but evidence that they lacked the relevant capacities — that they acted from compulsion, delusion, or incapacity rather than from a will responsive to reasons.

Conclusion: A Modest but Defensible Responsibility

The philosophical foundations of moral responsibility, on honest inspection, support a practice that is coherent but considerably more modest than either popular morality or traditional legal institutions assume. Libertarian free will cannot rescue responsibility from the problem of constitutive luck, because even if quantum indeterminacy introduces genuine openness into the causal chain, the character that tips the outcome in one direction is still the product of factors the agent did not choose. Hard incompatibilism correctly diagnoses the failure of retributive desert but overcorrects by abandoning the reactive attitudes that make moral community possible. The most defensible position is a neo-Strawsonian compatibilism that grounds responsibility in reason-responsiveness and the quality of the will, acknowledges moral luck as a genuine constraint on the severity of blame, and treats intention as morally significant without treating it as metaphysically magical. This is not a comfortable conclusion — it requires sustained discomfort with practices of harsh punishment and confident blame that most societies treat as obvious. But philosophical honesty about the foundations of moral responsibility demands exactly that discomfort. To understand why we hold each other responsible is also to understand how easily we hold each other too harshly.