Chapter Summary The inversion of the 3rd Law of Behavior Change is make it difficult. A commitment device is a choice you make in the present that locks in better behavior in the future. The ultimate way to lock in future behavior is to automate your habits. Onetime choices—like buying a better mattress or enrolling in an automatic savings plan—are single actions that automate your future habits and deliver increasing returns over time. Using technology to automate your habits is the most reliable and effective way to guarantee the right behavior.
