 In arguments of this type, superior explanatory virtues of a theory are taken as constituting decisive epistemic support for theory acceptability, warranted belief of the theory, and likely truth of the theory. There are, of course, multitudes of purported explanatory, epistemic virtues, including the incomplete list a couple paragraphs back (and lists of such have evolved over time). Assessing hypotheses in terms of such virtues is frequently contentious, depending, as it does, on perceptions of ill-defined characteristics, differences in background conceptual stances, and the like. Still, in general we frequently manage rough and ready resolutions.