This week Jad and Radiolab alum Tim Howard revisit a favorite episode from 2012.Because moments of total, world-shaking bliss are not easy to come by. Maybe that's what makes them feel so life-altering when they strike. And so worth chasing. This hour: stories of striving, grasping, tripping, and falling for happiness, perfection, and ideals. With Alexander Gamme, Arika Okrent, Richard Sproat, and Ken Libbrecht.This update was produced with help from Audrey Quinn.Support Radiolab today at Radiolab.org/donate.