Philosophy
The Ethics of Moral Luck and Agent Regret
Quick fact
Philosopher Bernard Williams coined 'agent regret' to describe the unique self-directed remorse felt by a driver who accidentally kills a child, even though they were not at fault—a feeling distinct from mere regret or bystander sympathy.
Why this is interesting
You’ve felt it—that nagging guilt after a car accident that wasn’t your fault. But are you morally responsible for what you never intended?
Read the full explanation
Understanding The Ethics of Moral Luck and Agent Regret
We usually assume moral judgments should only consider what we control. Yet consider two negligent drivers: one swerves and kills a pedestrian, the other’s swerve happens to hit an empty sidewalk. The first is often judged more harshly. This is moral luck—luck that affects moral appraisal. Philosopher Thomas Nagel identifies four types: resultant luck (outcomes), circumstantial luck (situations we happen to be in), constitutive luck (our character traits), and causal luck (how we are determined). Moral luck creates a paradox: either we deny responsibility (rejecting the control principle) or we accept that ethical judgment is partly arbitrary. Agent regret, a concept from Bernard Williams, describes how an agent feels responsible for harms they cause, even without fault. This feeling is not simply regret—it is deep self-directed remorse, prompting the agent to want to make amends or explain themselves. It grounds responsibility in a way that goes beyond blameworthiness, showing that morality is not purely a matter of control.
A deeper explanation
The mechanism of moral luck lies in the interplay between our control principle—that moral responsibility requires control—and the unavoidable influence of luck on our lives. Nagel argues that because we cannot control the outcomes of our actions, the situations we face, or even the characters we have, the control principle leads to a skeptical conclusion: we are never truly morally responsible. Yet we cannot live with that conclusion, so we accept moral luck. Agent regret is a natural emotional response that reveals our implicit acceptance of moral luck. It is not a judgment that one is blameworthy, but rather a feeling that one's agency is implicated in the harm. This feeling motivates the agent to repair, apologize, or at least explain. In contrast, spectator regret is impersonal. Agent regret is a key mechanism through which we hold ourselves and others responsible, even in cases of innocent harm. Understanding this deepens debates about free will, determinism, and the legal system's reliance on outcomes.