Get off your sarcastic high horse and think a bit before responding. I did not say Bolt would be taking off at 12.4m/s. I think that if his top speed is 3% faster, it’s not much of a stretch to think that he could take off at a faster controllable speed (maybe 3% faster even). Whether or not he can jump is another matter, and I said nothing to whether or not he can. Gaining 0.25m is over himself at a slower speed, not over Lewis because Bolt can miraculously long jump at an elite level with no training.