Truth relativism and Evans' challenge

In this paper I develop a version of Evans’ challenge for MacFarlane’s assessment-sensitive relativism. The argument is meant to show that, contrary to MacFarlane’s intentions, the correctness of an assertion is a relative matter if the area of discourse has an assessment-sensitive semantics. Thus MacFarlane’s truth-relativism is an inherently unstable doctrine for it is unclear how we should behave in order to achieve the goal of an assertion