I think there are far more unsolved problems than just this. As Feynman said, physics is like watching two grandmasters play a game of chess. A novice might lea

I think there are far more unsolved problems than just this. As Feynman said, physics is like watching two grandmasters play a game of chess. A novice might learn the rules by watching but wont understand why masters chose a move or know all the rules from watching one game.