Bolt has been reminding us all year of the four weeks training he lost after overturning his BMW M3 in a ditch in April. Thorns were embedded in his bare feet and he was unable to run a bend, and there were question marks over what kind of speed endurance he could come up with especially in a diminished field, without competition from the defending champion, Tyson Gay.
Before the race Michael Johnson, from whom Bolt took the 200m world record in 2008, had argued that you cannot miss out on basic training without it affecting your performance. He noted that Bolt's natural fortitude for the 100m would not wash in the 200m, that putting in the hours to improve his speed endurance was an essential requirement that brought even Bolt down to mere mortal standards.
With a minimum of fuss, Bolt dispensed of that theory. The question is, what on earth would he have done to the record had he prepared properly? In an event where the world record has been broken just four times now five - since electronic timing began in 1977, compared to the 14 times the 100m record has fallen, Bolt's achievement last night was simply extraordinary.