 Perhaps no strong global supervenience thesis will state a sufficient condition for physicalism. Nonetheless, progress has been made if there is some global supervenience thesis that all physicalists must accept and that virtually all non-physicalists would reject. Physicalism would then be testable by opening it to would-be arguments by appeal to FISTS, such as the zombie argument mentioned above. Moreover, it would be a substantive condition of adequacy on any formulation of physicalism that it entail the global supervenience thesis. Indeed, all three global supervenience theses stated above—Jackson’s, Lewis’, and Chalmers’—seem to serve these purposes. Thus, even if they do not capture the doctrine of physicalism, they do enough to earn their keep.