  The first strategy is unlikely to be productive. (Notice that some theorists nonetheless think the strategy important to the defense of interpretivism; see Smith 2010.) The interpretivist might begin by considering judgments about the existence of some legal obligation. His critics will say that disagreement in such judgments conceals agreement on grounds. The interpretivist will say that agreement in such judgments conceals disagreement on grounds. Absent some demonstration that actual agreements and disagreements are of one or the other kind, it will be hard to resolve the issue. It is possible instead to construct an inference to the best explanation of the phenomena, and the interpretivist may press that line. However, as I will suggest, the success of his thesis does not depend on the outcome.