Well, I think marathon each day is possible. I believe that's not far from what average persistence hunter runs a day (I have not checked my facts however). Run

Well, I think marathon each day is possible. I believe that's not far from what average persistence hunter runs a day (I have not checked my facts however). Running 3-4 times that is impossible IMHO. I have found this: http://en.wikipedia.org/wiki/Self-Transcendence_3100_Mile_Race http://en.wikipedia.org/wiki/Self-Transcendence_3100_Mile_Ra... It is 60 miles / day. Maybe it is upper limit?