 In other words, the completeness question holds fixed the issue of what it means for something to be physical, and asks instead what relation or relations obtain between everything and the physical if physicalism is true; in what sense, in other words, is physicalism a complete thesis, a thesis that applies to everything whatsoever. Notice again that a parallel question could be asked of Thales: assuming we know what condition you have to satisfy to be water, what does it mean to say that everything satisfies that condition? 