 Without Eq. (\ref{eq:independence}), in turn, Bell’s theorem can no longer be derived. Thus, admitting the possibility of retrocausality in principle reopens the possibility of giving a causal account of the nonlocal correlations entailed by quantum theory as mediated by purely action-by-contact, spatiotemporally contiguous, Lorentz invariant causal influences (of the type envisaged by Costa de Beauregard) acting between systems described by local beables. Concrete steps towards a model that might fulfill this promise will be reviewed in  §6.