 One noteworthy feature of the congruous versions of abduction considered here is that they do not rely on the assumption of an implausible privilege on the reasoner’s part that, we saw, ABD1 implicitly relies on. Another is that if one can be certain that, however many candidate explanations for the data one may have missed, none equals the best of those one has thought of, then the congruous versions license exactly the same inference as ABD1 does (supposing that one would not be certain that no potential explanation is as good as the best explanation one has thought of if the latter is not even satisfactory or sufficiently good).