Agile Games 2012 conference in Cambridge. " The Marshmallow Challenge is a remarkably fun and instructive design exercise that encourages teams to experience simple but profound lessons in collaboration, innovation and creativity." David presenting the challenge at Agile Games conference. Watch Tom Wujec's TED.com talk about his many experiences with this exercise. Agile Games 2013 ! See Also: Results Oriented Web conference Marshmallow Challenge workshop Don't mistake the Marshmallow Challenge with the Marshmallow Test by Walter Mischel. One is a design challenge - the other is an experiment designed to see if personality traits such as self-control are malleable.