 Robert Adams (1974) argues that modal realism leads to surprising results in moral philosophy. The modal realist says that the way things are, in the broadest possible sense, is not a contingent matter, since we can’t change the nature of the pluriverse. Hence we cannot do anything about it. So if moral requirements flow from a requirement to improve the way things are, in this broadest possible sense, then there are no moral requirements. Lewis rejects the antecedent of this conditional as something that only an extreme utilitarian could accept. What is crucial about morality is that we not do evil. Even if their actions won’t make a difference to the nature of the pluriverse, a virtuous agent will not want to, for instance, cause suffering. By rejecting the view that in our moral deliberations we should care about everyone, possible and actual, equally, Lewis avoids the problem.