A tortoise challenged Achilles to a race. Amused, the skilled warrior of ancient Greek legend laughed, but agreed.

Aware of his physical superiority, he gave the tortoise a lead of 10 meters. Achilles was sure that he would easily move 10 times faster. But it turned out not to be so simple. In the mathematical argument, Achilles could not win. He could never win.

Zeno, the philosopher from the south of Italy who lived five centuries before Chri