Congratulations to Michael Phelps who somehow won his 7th gold by beating out the other guy by .01 second.
It's a good thing there's an electronic timing system, because that's too close for human beings to see the difference, especially with all that water splashing around in the butterfly stroke.
By the way, isn't "fly" a crazy stroke? But maybe it's the prettiest to watch.
When Phelps takes off untrammeled,
he's quite the aquatic mammal.