"Heinz von Foerster was a physicist and philosopher, who worked extensively in cybernetics, biology and family therapy, although he hated being categorised as belonging to a particular academic discipline. Indeed he once remarked that “I am. Viennese. That is the only label that I have to accept. I come from Vienna; I was born there, that's an established fact” (von Foerster and Poerksen 2002, p. 43)"