in 1 if *unspecified* beables in 3 were correlated with both through a (factorizable) common cause in the overlap of the backward light cones of 1 and 2. On the other hand, requiring a specification of *all* local beables in 3, may render the condition (LC) inapplicable in attempting to show how theories meeting it predict correlations different from those successfully predicted by quantum theory.

To see the problem, consider the set-up for the intended application depicted in Figure 1. $A$,$B$ describe macroscopic events[^3], each usually referred to as the detection of a photon linearly polarized either vertically or horizontally relative to an $a $- or $b$-axis respectively: $a$,$b$ label events at which an axis is selected by rotating through an angle $a{{}^\circ},b{{}^\circ}$ respectively from some fixed direction in a plane. The region previously labeled 3 has been relabeled as 3a, a matching region 3b has been added in the backward light cone of 2, and ‘3’ now labels the entire continuous stack of space-like hypersurfaces right across the backward light cones of 1 and 2, shielding off these light cones’ overlap from 1,2 themselves. Note that each of 1,$a$ is space-like separated from each of 2, $b$.

In some 