For the past six days, the national punditocracy has shaken its head, tossed its hands, and joined together in a rare demonstration of collective befuddlement to ask: Okay, why did Palin really resign?

Apparently, the answer comes back to what most things in life will, eventually: Sex on Skates.

Megan Garber is an assistant editor at the Nieman Journalism Lab at Harvard University. She was formerly a CJR staff writer.