A Chess Prodigy Explains How His Mind Works

Magnus Carlsen is able to play a simultaneous exhibition match against 10 chess boards from memory!
(that is 320 pieces and over 400 possible moves from memory)

Magnus Carlsen has memorized every move of every game he has ever played; that is over 10,000 games (over 400,000 positions and 320,000 pieces) locked away in his brain, and he can replay any game at any moment perfectly.