NONLOCAL CHARACTER OF QUANTUM-THEORY

In a recent article under the above title (but without the question ma rk) Henry Stapp has presented arguments which lead him to conclude tha t under suitable conditions ''the truth of a statement that refers onl y to phenomena confined to an earlier time'' must ''depend on which me asurement an experimenter freely chooses to perform at a later time.'' I suggest that this conclusion contains an essential ambiguity as reg ards the meaning of the expression ''statement referring only to pheno mena confined to an earlier time,'' when such a statement talks about the outcome of an experiment that was not actually performed. As a res ult Stapp's argumentation does not imply that future choices can affec t present facts. But it does provide a wonderful and instructively dif ferent opportunity to reexamine a central point of Bohr's famous reply to Einstein, Podolsky, and Rosen. (C) 1998 American Association of Ph ysics Teachers.