Recent years have seen an increasing growth in the study of global systems. These studies include the Boston Group’s approach to world dynamics, the theory of interacting populations, and the study of macroeconomic systems with many interdependent sectors. The typical techniques of cybernetics are particularly well suited to tackle these problems. Cybernetics studies the behaviour, in particular the stability, of interconnected systems, whether linear or not, deterministic or stochastic. Considering the great importance of this advance for human society at this particular time, an effort in this field seems essential. S. Gabor’s proposal to contribute to the transformation of the soft social sciences into hard sciences is welcomed.