As opposed to the computer, the human being can intentionally mislead in many different ways, can behave chaotically, and whenever he has the motivation can choose also by improvisation, non‐consequent misleading, and spontaneous manners of reasoning and articulation. Human perception and the elaboration of the experience are existentially interest‐related, and distorted if found necessary. The arbitrariness is unlimited; human beings can initiate and produce absurd combinations, contextual failures and deceptive expressions, and do so also by intonation and body‐language. These are (...) the sources of social behaviour, of literature, arts, jurisprudence, politics, etc., all representing systems of meaning constructed by human beings, present in their ‘Lebenswelt’. Human beings are flexible, sensible of emotions and well‐trained to code and decode hidden fallacies, to produce wild associations, capricious‐temporary conclusions, tasks that the rigid computer cannot fulfil. They can choose incorrect and dysfunctional answers; the exactness of their reasoning can be logically invalid. The computer has only inner horizons; human beings have also outer ones, in which they are able to produce multidimensional relationships. They are not truth‐conditioned.The reduction of organic human thinking to the computer’s mechanisms can end up in humankind’s dehumanisation. (shrink)