When Amy Green's young son was diagnosed with a rare brain tumor, she made up a bedtime story for his siblings to teach them about cancer. What resulted was a video game, "That Dragon, Cancer," which takes players on a journey they can't win. In this beautiful talk about coping with loss, Green brings joy and play to tragedy. "We made a game tha...

Have you ever thought of the history of the spoon? From now on you'll never look at a spoon the same way again.