Abstract

By some measures, quantum mechanics (QM) is the great success story of modern physics: no other physical theory has come close to the range and accuracy of its predictions and explanations. By other measures, it is instead the great scandal of physics: despite these amazing successes, we have no satisfactory physical theory at all—only an ill-defined heuristic which makes unacceptable reference to primitives such as ‘measurement’, ‘observer’ and even ‘consciousness’.