Lightning does strike twice in the same place.
Was there ever any doubt that Usain Bolt, the fastest human ever, the most-watched man in the world on Sunday night, would burn up the Olympic 100m track again?
It wasn't quite the cakewalk he made it look in Beijing four years ago.
There was no chest-thumping before the finish line this time.
But Bolt won again with the same authority and commanding presence, with grace and style and, yes, beauty.
The London final played out much as expected. Bolt was typically slow out of the blocks - especially since his disqualification in last year's world championships - but had gathered in the field by the 60 metre mark and was never going to lose after that.
He was even quicker than in Beijing. His winning time of 9.63 seconds, the second fastest ever, beat his own Olympic record by six hundredths of a second, though it was a similar margin outside his world mark of 9.58.
Bolt remains in a class of his own, untouchable. He won convincingly from his Jamaican teammate Yohan Blake, the young gun who many thought might take him out after beating him twice at the Jamaican trials.
With the whole world breathing down his neck, Bolt could take no chances. The power-laden men who finished third, fourth, fifth, sixth and seventh had to run their fastest times ever to secure those spots. Three of the eight finalists, including Blake, then ran their best or equal best times ever. Still not good enough.
Bolt was soon performing his trademark celebrations, pointing his right index finger to the heavens, then adopting his bow and arrow stance for the cameras.
He had a couple of new tricks this time, including making a running gesture with two of his fingers before the start of the race.
He is a genuinely laid-back athlete who famously primed his body in Beijing by eating chicken McNuggets.
Surely he feels the pressure. But he really does seem to have the mind games sorted out. Maybe the Aussie swimmers should have a chat with him.
He thought he might be nervous in London, what with all the people of Jamaican descent in the stands.
But he always seems to get himself in the right head space.
The world's highest-paid athlete should now have no trouble, if he so desires, adding to the stable of six cars, all black, at his hilltop Kingston home. Surely none has an engine that purrs like his.
Bolt has not only secured the 100m double for his tiny Caribbean nation but a double-double, following Shelly-Ann Fraser-Pryce's back-to-back golds in the women's 100m.
Can he make it another double in the 200m? Don't bet against it.
Britain's heptathlon heroine Jessica Ennis, the Cathy Freeman equivalent of these Games, delivered the gold the host nation craved on Super Saturday.
On Supersonic Sunday, Bolt delivered for the world.