Cass Sunstein examines “nudge theory,” showing how we can all make better decisions when we get even the slightest push to change our behavior. This talk was filmed at TEDxBeaconStreet. All TEDx events are organized independently by volunteers in the spirit of TED's mission of ideas worth spreading. To learn more about TEDxSHORTS, the TEDx program, or give feedback on this episode, please visit http://go.ted.com/tedxshorts.