I would say you could reproduce all the notes if you had a couple or three hours a day available for several years. The flow of the notes is the problem. Doc isn't even being close to the fastest flatpicker there is, any more than Earl Scruggs is close to being the fastest Scruggs-style banjo player. Most musical is another thing entirely.

(My wife just walked in and asked what I was doing. I said, "I'm pontificating." She replies, in mock disbelief, "YOU?!")

Peter.