String theory and the whole wave/particle topic. To me, it just takes everything down to the basic binary level, yes/no, off/on, black/white. It's how we are hard-wired, but it is also the thing we have to transcend to reach enlightenment. Of course, the truth about enlightenment is that we remember, we forget, we remember, we forget, so, yet another duality.
Of course, I ain't no physicist, either, so this is totally an off the wall interpretation.