 The idea is that there are many unobtrusive metaphors; and that if metaphors can often be this unobtrusive, then maybe the non-literalness of our actual utterances of sentences of D is also unobtrusive. Of course, what Yablo says here is controversial. One can insist that some of Yablo’s examples are not metaphors but idioms. And one can insist that for some of the examples, the only reason to regard them as non-literal would stem from a prior conviction that their literal truth would require metaphysical absurdities. But so long as there are a fair number of unobtrusive metaphors, Yablo has a point.