“Scientists of the late twenties, led by Bohr and Heisenberg, proposed a conception of nature radically different from that of their predecessors … Their theoretical structure did not extend down and anchor itself on fundamental microscopic space-time realities. Instead it turned back and anchored itself in the concrete sense realities that form the basis of social life. This radical concept, called the Copenhagen interpretation, was bitterly challenged at first but became during the thirties the orthodox interpretation of quantum theory, nominally accepted by almost all textbooks and
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