Listened to this on my iPod yesterday. Watched it on YouTube today. Very powerful if you let it sink in.
Science can answer moral questions
I like this piece a lot more than when he spends most of his energy attacking religion. I already agree with him on most of that material, so it's far less interesting to me and too aggressive for my comfort.
Far better to focus on positive changes in science rather than "that over there is patently stupid."