In a mostly spot-on piece, Joshua Kosman of The San Francisco Chronicle writes:
The mathematician Mark Kac, in describing the visionary physicist Richard Feynman, identified two types of geniuses: the ordinary kind and what he called the "magicians."
"An ordinary genius is a fellow whom you and I would be just as good as, if we were only many times better. There is no mystery as to how his mind works. Once we understand what they've done, we feel certain that we, too, could have done it. It is different with the magicians. Even after we understand what they have done, it is completely dark."
Mozart, like Feynman, was a magician.