This video, https://www.youtube.com/watch?v=05iy2JDc_rc&list=PLO6o9s4QR5NxhfvioiQZJlyHULYfbeaFI&index=7, can also be seen at https://www.youtube.com/channel/UCYvSQHBoOI7g7CWyqkIznPQ.