 If we want to accept the quantum mechanical predictions, which appear to be empirically well-confirmed, we have to reject at least one of the postulates. Rejecting free choice amounts to accepting superdeterminism, according to which measurement settings cannot be freely chosen. Alternatively, we can give up relativistic causality, either by allowing for superluminal influences from the outcomes at one wing on that at the other wing, or by positing retro-causal relations, which allow measurement outcomes to influence the earlier state of the source (see, e.g., Price 2012; and references in Friederich &amp; Evans 2019).