What if the grand unified theory, even if one is found that gives a good representation of our universe, can never explain the universe fully? Maybe the truth behind the universe is difficult to uncover, not because our brains are incapable of it, but because the reality is so seemingly weird as to be unbelievable. For instance, go back in time and tell some ancient about Relativity. They would think you were off your chop. What if you go forward 50 years. You will have the same mental capacity but the theories will be new.
