I'm excited to introduce a person you've probably never heard of. His name is David Hall. He's an amazing inventor, and also a big expert on the city of Joseph. It's going to be a fascinating conversation. We're going to get into medical devices, electric cars, water purification, all sorts of amazing things. One title I considered for this interview is Thomas Edison Meets Joseph Smith. It's going to be a fascinating conversation. You definitely won't want to miss this one. It's one of my favorites of all time. Check out our conversation...