 Moulton criticizes how the operation of the Adversary Method as a paradigm can hobble the progress of philosophical reasoning by narrowing the possibilities for discussion. Isolating claims maximizes their vulnerability and prepares them for Adversarial testing, forcing proponents to rely on ad hoc revisions, and prohibiting the systematic reconsiderations that encourage theories to evolve. For instance, ad hoc concessions “for the sake of argument” create common ground for discussion only by restricting the basis for disagreement; and so, Moulton maintains, they slow the development of philosophical thought (1983: 154–155).