The anti- realist interpretation of quantum mechanics championed by the physicist Neils Bohr (1885–1962) who worked in Copenhagen, and the subject of extended debate with Einstein . According to Bohr, there is no deep quantum reality, no world of electrons and photons. There is only description of the world in these terms: quantum mechanics affords us a formalism that we can use to predict and manipulate events described in everyday languages, or the language of classical physics, but it is misguided or senseless to postulate a quantum reality answering to the description. Problems such as the wave-particle duality, or the problem of Schrödinger's cat, suggest that there is no reality behind our observations.
Philosophy dictionary. Academic. 2011.