 The main options for the priority monist seem to be denying the modalized version of 28 (Schaffer 2013: 84), and so claiming that priority monism holds even at island universes; or denying the final premise that if priority monism is true then it is necessarily true, and instead claiming that the matter is contingent (Siegel 2016). But whatever option the priority monist should take, it is hard to see how an argument premised on the claim that it is necessary that basic objects evolve by the fundamental laws, could refute priority monism in the end, given the claim in 29 that the cosmos is the one and only thing which actually evolves by the fundamental laws. That much at least gets us the actual truth of priority monism.