He calculates the Fourier-transform of a rational function in his mind. He inverts a 9 by 9 complex valued matrix on the back of an envelope in ten minutes. At the age of 30, He publishes one chapter of a book and 10 articles every year, in 3 of these articles he is a single author. He works 11 hours a day in his room and he is always busy thinking or calculating. He knows the answer to any physical and mathematical question you ask. He must be a genius.