 We have seen that sequential decision trees can help an agent like Ulysses take stock of the consequences of his current choice, so that he can better reflect on what to do now. The literature on sequential choice is primarily concerned, however, with more ambitious questions. The sequential-decision setting effectively offers new ways to “test” theories of rational preference and norms for preference (or belief and desire) change. The question is whether an agent’s decision theory in this broad sense is shown to be dynamically inconsistent or self-defeating.