E. T. Jaynes pointed out two hidden assumptions in Bell Inequality that could limit its generality. According to him:

1. Bell interpreted conditional probability P(X|Y) as a causal inference, i.e. Y exerted a causal inference on X in reality. However, P(X|Y) actually only means logical inference (deduction). Causes cannot travel faster than light or backward in time, but deduction can.

— Wikipedia on Bell’s theorem

However, it should be interpreted as causal inference because before measurement, there is no Y, such a classical state.

— Me@2012-04-07 2:35:55 PM

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