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

2015.05.23 Saturday (c) All rights reserved by ACHK