At the initial stages of idea formation, “the pure rationalist has no place,” as the physicist Max Planck put it. Discovery, as Einstein also explained, “is not a work for logical thought, even if the final product is bound in logical form.”26 To activate divergent thinking, you must shut down the rational thinker in you, the part responsible for otherwise safe, beneficial grown-up behaviors. Set aside the spreadsheets, and let your brain run wild. Investigate the absurd. Reach beyond your grasp. Blur the line between fantasy and reality.