Unscramble Words Don't Eat the Marshmallow!Online version In this short talk from TED U, Joachim de Posada shares a landmark experiment on delayed gratification — and how it can predict future success. With priceless video of kids trying their hardest not to eat the marshmallow. by pepe lijo 1 What happens when the professor leaves the room? of out the kids eat marshmallow three Two . .