# Back From the Future

An article in DISCOVER Magazine discusses an apparent influence of the decision to make later measurements on the results of earlier ones.

But then it turns out that the effect persists even when the later measurement is not recorded. Such cases are dismissed as experimental error, but perhaps it is just that the presence of the apparatus for the final measurement that causes the effect. Just as the half-silvered ends of a laser trap the photon between them, so perhaps do the apparati for initial and final measurement also trap the photon subjects of the Aharonov-Tollakson experiment.

Is there any significance in the fact that the article was originally printed in the April edition?

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