 This sort of proposal has been criticized by Sklar on methodological grounds. Sklar claims that scientists would not accept such an explanation (1985: 111–2). One might point out, however, that many scientists did believe in analogues of the time-ordering field as possible causes of the CP  violations.[4]  The time-ordering field, if it exists, would be an unseen (except through its effects) common cause of strikingly ubiquitous phenomena. Scientists routinely accept such explanations. To find a problem with the time-ordering field we need not invoke methodological scruples; instead we can simply ask whether it does the job asked of it. Is there a mechanism that will couple the time-ordering field to thermodynamic phenomena? Weingard says the time potential field needs to be suitably coupled (1977: 130) to the non-accidental asymmetric processes, but neither he nor Christensen elaborate on how this is to be accomplished. Until this is addressed satisfactorily, this speculative idea must be considered interesting yet embryonic. For more recent work in this vein, see Maudlin 2002.