EINSTEIN said this in an eight-page hand-written letter he wrote in 1945. It was part of his famous stand rejecting the theory of quantum mechanics that was developed in the early half of the 20th century by a group of young physicists who met regularly in Copenhagen—knowledge that at the time was still new, strange, brilliant and confusing.

Actually, Einstein was merely reiterating the conviction he had held since 1926. In a letter o