I think he knew the world record wasnt possible, (he did comment afterwards) - cracks me up that when a camera is around he pulls a face or makes a had gesture - perhaps thats the way to beat him- get people around the track with cameras every 50 metres so he keeps posing !! Fair play to him and the rest of the Jamaicans even remembering to give "big ups" to the people of Birmingham where they had their pre olympic camp in their post run interviews. Respect.