This is a “must see”. David Christian, whom I’ve raved about previously, and who Bill Gates raves about too, just delivered a fabulous 17-minute TED talk (below). If you’ve not already heard it, I also recommend taking the time to listen to Connie’s and my “Inspiring Naturalism” interview with David last year. I consider David’s The Teaching Company course on Big History to be the single best educational experience I’ve ever had. (I just noticed that it’s on sale 70% off. DON’T MISS IT!) Connie and I playfully refer to our dear friend and colleague as, “King David”. You’ll soon see why. He does these evolutionary evangelists proud!