The basic assumption of game theory is that humans will always act to their own benefit in every condition and in every situation and based on the data at their disposal. Professor Israel Aumann, a renowned figure in Israeli public life and a global expert in game theory, presents his political, economic and social outlook as it is reflected in his work. From his seat at the Center for the Research of Rationalism at the Hebrew University, he demonstrates how game theory, based on mathematical equations, explains the behavior of male butterflies in nature as well as suicide bombers.