The Notion of „Objectivity”. Classical Physics, Quantum Physics, Philosophy

Abstract

It is commonly held that the rise and development of quantum mechanics forces us to reject the idea of objective knowledge and the notion of truth in science. In the article I critically analyse arguments against possibility of objective knowledge in quantum mechanics, which were formulated by philosophizing physicists (Bhor, Heisenberg, Weizsacker). I point out that the term „objectivity” used by those physicists, in ambiguous. They do not distinguish epistemological and ontological notions of „objectivity”, different meanings of the ontic objectivity itself, and they do not separate the objectivity of cognitive acts from the objectivity of cognitive results.