Join hosts Elaine Matthias and Alexis Morin as they interview design luminaries, thought leaders, and experts to showcase the best of the IxDA community. In this episode, Interaction 21 team member Poppe Guthrie sits down with Day 3 Keynote David Brin, an astrophysicist and award-winning author of science fiction novels, including The Postman, Earth, and Existence.