I might be overrating this- but even a know-nothing about track-and-field such as myself can't turn the TV off when Bolt scorches the earth.

Yes, I wonder if he's really clean. . .but I must admit (from a PR standpoint) it makes the story more interesting. This is probably a three. . .but my heart pushes it to a four.

Assuming he's clean, there's no denying Bolt is something special (and is aptly named). He recently set 2 world records (one in the 100 meters and one in the 200) in Berlin because of his absurd combination of footspeed (duh) and size (b/c he doesn't need as many strides to run a race). Most 6'5" guys I know lumber around awkwardly. Not Bolt. An SI writer compared him to a Yao Ming with Chris Paul quickness. I really hope he's clean. Sent via BlackBerry by AT&T.

I don't know how significant this is. Most people don't really care about races. Sure, the guy is fast, and is an Olympic champ but I'm sure there will be someone faster down the road.

This guy is amazing. He keeps pushing human barriers braking the world record (he held) by 0.11 secs.

I have read some experts saying that his technique is not perfect, so there is still room for improvement.