In 1996, Ivan Illich (above) agreed to speak at Doors of Perception in Amsterdam on the theme of  ‘speed’. The philosopher-educator surprised us by bringing along two fellow speakers: Sebastian Trapp, a field biologist, and Matthias Rieger, a musicologist. Their contributions are as  fresh today as when we heard them in Amsterdam – so we are running them again in three parts. This is part three, the concluding remarks of Ivan Illich.