 Technically, the relational blockworld approach is set up as a modification of lattice gauge theory, with the Feynman path integral functioning as an “adynamical global constraint”. While adynamical and acausal rather than retrocausal in spirit, on the authors’ view this interpretation exploits the retrocausality loopholes of the no-go theorems. They conceive of the relational blockworld view as \(\psi\)-epistemic. In more recent work (2018: Ch. 6), Silberstein, Stuckey and McDevitt have developed this approach into an ambitious overarching programme in fundamental physics, aiming at field-theoretic unification as well as a novel account of quantum gravity.