H. P. Grice & J. L. Speranza, "The implicatures of deixis"

Speranza

It is commonly held that retraction data, if we accept them, show that assessment relativism is to be preferred over non-indexical relativism (a.k.a. non-indexical contextualism). I will argue that this is not the case. Whether retraction data have the suggested probative force depends on substantive questions about the proper treatment of tense and location. One’s preferred account in these domains should determine which form of relativism one prefers.