Facing Quantum Mechanical Reality

Science  23 Sep 1983:
Vol. 221, Issue 4617, pp. 1251-1255
DOI: 10.1126/science.221.4617.1251


Two recent precision experiments provide conclusive evidence against any local hidden variables theory and in favor of standard quantum mechanics. Therefore the epistemology and the ontology of quantum mechanics must now be taken more seriously than ever before. The consequences of the standard interpretation of quantum mechanics are summarized in nontechnical language. The implications of the finiteness of Planck's constant (h > 0) for the quantum world are as strange as the implications of the finiteness of the speed of light (c < ∞ for space and time in relativity theory. Both lead to realities beyond our common experience that cannot be rejected.