Leaving Nothing to Chance reverses this retreat from luck egalitarianism, presenting a bold new theory of equality that overcomes criticism of luck egalitarianism by reinterpreting and strengthening its core commitment to equalizing the effects of luck. It offers the first major statement of all-luck egalitarianism, which unlike brute-luck egalitarianism neutralizes the unequal consequences of option luck as well as brute luck. The book further pursues the goal of luck neutralization by opening or 'greying' the black box of responsibility, rejecting personal identity in favour of a thin account of what matters for prudence and responsibility, and defending a moral rather than prudential account of the value of choice. While most recent egalitarian philosophers conclude that equality requires luck neutralization to be curbed or abandoned altogether, Leaving Nothing to Chance shows that the problems of brute-luck egalitarianism's partial luck neutralization can instead be overcome by fully neutralizing luck.