Abstract

In Manipulated Agents: A Window to Moral Responsibility, Alfred Mele invokes radical reversal cases in which one agent is covertly manipulated to be just like another agent in relevant respects to defend a version of the following “externalist” thesis: how agents acquire their springs of action, such as desires and beliefs, bears on whether they are morally responsible for their actions. I assess proposed rationales for the crucial verdict that agents in such cases are not responsible for their germane actions. I argue for the superiority of Mele’s rationale and propose that these cases also support accepting an externalist constraint on other normative appraisals, such as those of practical rationality. Key words: Moral obligation; practical rationality; radical reversal cases; ultimate origination; zygote argument.