Chinese chain-smoking marathon runner completes 26 miles in less than 3.5 hours (opens in new tab)

Its obviously for his personal enjoyment and most likely achieving a personal goal without having to be concerned with anyone elses goals.

Do you look at a 400 lb to 600 lb pound person and wonder what could have been also?

That was my coach's rationalization for not sending me to state competition at the end of my freshman year, despite my quali's. I put a "head" onto his name when I said thanks, got in lots of trouble and went and got a job instead of further competition. Best decision ever. Thanks, Richard!