Bolt is unbelievable. One of the greatest Olympic performances ever. I'd think only Carl Lewis 1984, Paavo Nurmi 1924, Jesse Owens 1936, and Florence Griffith-Joyner 1988 are on the same level. FloJo didn't get the world record in the 100 during the Olympics, but she already had it (it still has never been approached except by her) and she set the 200 WR twice including during the final (that record still stands too). She added a gold in the 4x100 and a silver in the 4x400. Lewis didn't set either world record, but he dominated the competition in much the same manner as Bolt and set an OR in the 200. He added the long jump (first of an Olympic record 4 straight Golds in the same event) and the 4x100 golds. Owens won the same 4 golds that Lewis did, though in less dominating fashion than Lewis. He already had the 100 and long jump WRs from a meet at the U of Michigan in 1935. He gets extra credit for sticking it to Hitler. Nurmi won 5 golds in 1924, though 3 of those events are no longer contested. He won the 1500 and the 5K in WR times despite the finals having less than a half hour break between them. The 1500/5K double wasn't matched until 2004 by Hicham El Guerrouj, arguably the greatest miler ever. Nurmi also won the 5K cross country race and the 3K team and 5K cross country team events. Those 5, to me, are the greatest Olympic performances. The ranking is difficult, but Bolt's performance was so unprecedented that I'm still basically in shock. Literally 2 weeks ago, my wife asked me which track records I thought were the most unassailable. The obvious answer is FloJo's 100, but Johnson's 200 was next. Nobody had come within 3/10ths of it. Many people thought Johnson's performance was the 2nd most dominant in Olympic history, paling only in comparison to Bob Beamon bettering the long jump world record by almost 2 feet in 1968. Now Bolt has destroyed his rivals by even more than Johnson did. He wasn't able to lower the world record by nearly as much as Johnson did, but to better it at all is absurd. Johnson didn't even qualify for the Olympics when was as old as Bolt is now (Johnson had a lingering injury that season though). The question now is whether Bolt can keep this up for the next 8-12 years and become the greatest Olympian and/or runner ever. Only Carl Lewis repeated as the 100 meter champion (and that was only because Ben Johnson was DQ'd) and nobody has ever repeated as the 200 champ. Obviously, a lot of former champions didn't compete more than once because of arcane and stupid amateurism rules, but still, repeating is a daunting task. If Bolt can do the double again in London, he's probably the greatest ever, in my opinion. If he can do both in addition to adding the 400, as has been rumored, he'll be superhuman. I'm not even sure if that would be possible given the heat schedules, but we'll see, I guess. Sucks that we have to wait four years, I'm so excited. Johnson didn't peak till he was 29. That would be Chicago (hopefully) 2016 for Bolt. I can't wait to see what he can do in the interim.