To the naked eye, it's hard to tell whether Michael Phelps really beat Milorad (Mike) Cavic to the wall.
Well, that depends on how naked you want to get.
Sports Illustrated has come up with this series of photos that seems to dispel any notions of conspiracy and device malfunction. It really does look like Phelps beat Cavic by the closest of margins.
By 1/100th of a second.
That's one centisecond, a bit longer than a flash. Technically, it's called a jiffy.
Yes, Michael Phelps won by a jiffy.