i say bolt doesn't even come close to phelps.. he is simply 2/8's of phelps accomplishments..

amat, you have summed up how sprinting is more than just running in a straight line, but you may be forgetting how tiring and straining swimming is.. i'd consider myself in pretty good shape, prob 7-8% body fat, and i run just about every day, and when i go to my campus's pool.. if i do one lap at almost full speed i am breathing real heavy.. Swimming is much more physically demanding than running, simply because it involves the whole body, and also water is far more resistant than air.. FAR more..

when you compare bolt to the other runners and saying that he was so far ahead of them and such, phelps was the same way.. regardless of genetics.

to diminish anything phelps has done, because a sprinter won the 100m and 200m convincingly is silly.. At the same time, i cannot praise bolt anymore for his feat, but he would have to win 4-5 more races individually, and then run in some relay races to come close to phelps..