  Between 1964 and 1990, the notion of nonlocality in Bell's papers underwent a
profound change as his nonlocality theorem gradually became detached from
quantum mechanics, and referred to wider probabilistic theories involving
correlations between separated beables. The proposition that standard quantum
mechanics is itself nonlocal (more precisely, that it violates `local
causality') became divorced from the Bell theorem per se from 1976 on, although
this important point is widely overlooked in the literature. In 1990, the year
of his death, Bell would express serious misgivings about the mathematical form
of the local causality condition, and leave ill-defined the issue of the
consistency between special relativity and violation of the Bell-type
inequality. In our view, the significance of the Bell theorem, both in its
deterministic and stochastic forms, can only be fully understood by taking into
account the fact that a fully Lorentz-covariant version of quantum theory, free
of action-at-a-distance, can be articulated in the Everett interpretation.
