After getting laughed off Shark Tank, Rocketbook’s co-founders, Joe Lemay and Jake Epstein, have built their company on the back of improving efficiency and pushing boundaries. Now, they’re helping you better yourself by experimenting on themselves with the most extreme self-improvement methods the world has to offer. From time management with an egg-timer to focusing by fasting, The Betterment Experiment tests out the best and worst ways to better yourself, so you don’t have to.