I have to say, I too found it really good. I've never met Jim, don't know much about what he was doing or explaining, and can't understand how what he was doing here (in the video) could help him out there, building an actual green; but I've been around enough creative people in enough creative fields to know/sense that I was watching the unselfconscious and flowing movements of someone who's approaching 'effortless mastery' in his particular vocation -- and that in itself is worth it for me.
Peter