What does an expert brain think about Lost, and can Michio Kaku explain those equations that Mrs. Hawking was caught scribbling in the basement of that church? Popular Mechanics grabbed a hold of Kaku's brain and shook it around until he promised us some answers.

Which, as per usual, lead to more questions. For example, Kaku speculates that the equations are probabilities from quantum mechanics "The only reason you'd be interested in probability is because you want to calculate radiation effect," says Kaku. "And radiation has to do with the stability of the wormhole. Say a flashlight was to go through a wormhole. It would go into the past, but [its] photons don't disappear; they go back in a second time, and go back in and in and in like a circle, until it builds up and the whole thing blows up." Brain, destroyed. [Popular Mechanics]