Abstract

In conventional quantum mechanics, complementarity appears as a remarkable but somewhat useless consequence of the formalism. On the contrary, in Bohr’s view, his notion of complementarity – what I call Bohr’s complementarity – apart from offering a consistent interpretation of QM, was setting the requirement for a ‘thorough revision’ of our common attitude towards ‘physical reality’ and was teaching an ‘epistemological lesson’ transcending the domain of physical sciences. In the present paper, the discussion on the internal rationale of Bohr’s thought from a contemporary philosophical viewpoint permits me to argue that BC stems from a realistic standpoint which starts by accepting an ontology compatible with the non-separable structure of quantum formalism and comes to recognize the necessity of largely revising the epistemological ideas of traditional scientific realism. In this respect, I propose an elaborated form of BC which recognizes the participation of the human perspective in the content of knowledge and, on this basis, attempts to ground scientific objectivity on the notions of ‘perspectival contextuality’ and ‘perspectival plurality’ which integrate reductionistic and holistic epistemological demands in a realistic worldview. The epistemology delineated here creates, I claim, a promising epistemological bridge between physical sciences and humanities.