This video, https://www.youtube.com/watch?v=hO3hB86PhqE&index=5&list=PL6BsSDLnXCAOdKgdTcFmBY5z0B0O_qrXN, can also be seen at https://www.youtube.com/playlist?list=PL6BsSDLnXCAOdKgdTcFmBY5z0B0O_qrXN.