 Two strategies that we can sometimes use to solve (in the sense of practically deal with) dynamic choice problems are suggested in Kavka’s description of the toxin puzzle. One strategy is to use gimmicks that cause one to reason or choose in a way that does not accord with one’s preferences. The other strategy involves the arrangement of external incentives. Although such maneuvers are ruled out in Kavka’s case, they can prove useful in less restrictive cases. This subsection considers the former strategy and the next subsection considers the latter strategy.