突破速度极限

Some seemingly simple sequences of multiplication and addition grow so quickly that they question the very foundations of mathematics, finds Richard Elwes D ID you hear the one about the man who invented chess and got himself executed? Legend has it that a man called Sessa, who lived in India long ago, developed the rules for the game and presented them to a king. The king was delighted and offered the man his pick of reward. number of grains of sand it would take to fill the universe. And in Central America, the classical Maya contemplated timescales of octillions of years, vastly longer than the age of our universe. These pioneers are partly why I wrote my book, Huge Numbers. …