Honestly, President Obama and Michelle Obama’s “Thriller” dance, performed yesterday at the White House Halloween party, is probably a more accurate depiction of how a pack of zombies, aliens, and things with 40 eyes would dance. They aren’t perfectly choreographed. They don’t know all of the steps. Some of them are dads. But they showed up anyway to collectively terrorize the memory of Michael Jackson, and they are going to have fun doing it, whether or not they have the funk of 40,000 years.