It's a chance to see Bill Gates as you might not have seen him before: as serious and motivated as ever, but having fun and being funny along the way. (After you've watched it, check out the Q&A session here, particularly when he starts talking about the need for diversity.) As the host suggests, I could just as easily have titled this post: "Bill Gates lets loose new bugs into the world . . ."
Enjoy---I hope you get as much out of it as I did.