  The Bell's inequalities are derived from the hypotheses of Locality, Realism
and (what is lesser known) the equality between the factual and the
counterfactual time averages of the expectation values of observables. The
necessity of a hypothesis additional to Local Realism opens a promising way out
to the old controversy between Quantum Mechanics and Local Realism. For, it is
possible to speculate that it is this additional hypothesis, and not Local
Realism, what is disproved in the experiments reporting the violation of the
Bell's inequalities. Yet, there are doubts on how the additional hypothesis may
be violated in a physically reasonable process. A simple example showing that
this is possible, the relationship between the validity of the additional
hypothesis and the validity of the Bell's inequalities, and considerations on
its physical meaning, are presented.
