Uncertainty about the future constitutes the most difficult, but also by far the most important issue mankind is facing. The current state, which is characterized by the global warming, finance crisis and terror illustrates the fact that during the last centuries the future physical and social consequences of decisions for the whole global system have never been checked. One reason is that uncertainty is neglected in science and as a consequence has never been included in a rational way in the decision making processes. Contrary, science teaches that to be “rational”, human beings have to behave like a “homo oeconomicus” who acts to obtain the highest possible well-being for himself. In other words, only the consequences on an individual basis are considered in a shortsighted basis. As a result of the “individual” strategies, all vital systems exhibit an ever increasing instability that endangers individuals, nations and in fact the entire mankind.
