   Furthermore, Arntzenius (1994) argues that all relativistic parameter-dependent theories are impossible on pain of causal paradoxes. In his argument, he considers the probabilities of measurement outcomes in a setup in which two EPR/B experiments are causally connected to each other, so that the L-measurement outcome of the first EPR/B experiment determines the setting of the L-apparatus of the second EPR/B experiment and the R-measurement outcome of the second EPR/B experiment determines the setting of the R-apparatus of the first EPR/B experiment. And he argues that in this experiment, relativistic parameter-dependent theories (deterministic or indeterministic) would give rise to closed causal loops in which parameter dependence would be impossible. Thus, he concludes that relativistic, parameter-dependent theories are impossible. (Stairs (1989) anticipates the argument that the above experimental setup may give rise to causal paradoxes in relativistic, parameter-dependent theories, but he stops short of arguing that such theories are impossible.)