 One might reply, however, that canceling path violations of faithfulness result from a system’s specific causal structure: the causal structures at issue appear to be designed precisely to allow for what amounts to violations of faithfulness. By contrast, Wood and Spekkens show that if we hold on to the Markov condition, then violations of faithfulness have to be a generic feature of quantum causal systems that violate the Bell inequalities. It is unclear, whether a plausible account of such generic violations of faithfulness in quantum systems involving cancelling paths can be given. Näger (2016) explores several alternative ways in which faithfulness might be violated in quantum causal systems. By contrast, Glymour (2006) argues that instead of giving up faithfulness, we ought to reject the Markov condition in quantum contexts.