  It is recalled that closed (isolated) systems are essentially reversible
whilst open systems like the Earth, or living beings on it, are irreversible
because they are not isolated. Earth and life irreversibility derives from the
evolution of the universe, which is a consequence of its special initial
conditions. It is stressed that, although relativity theory forbids that
information travels faster than light, it does not forbid influences of an
event on its past light cone. Therefore the violation of Bell inequalities in
loophole-free experiments is compatible with relativity theory. A correlation
formula, alternative to Bell's, is proposed as the starting point for hidden
variables models fitting in relativity.
