 Many commentators concede to the epistemicist, that it is logically possible for vague predicates have thresholds. They just think it would be a miracle: “It is logically possible that the words on this page will come to life and sort my socks. But I know enough about words to dismiss this as a serious possibility. So I am right to boggle at the possibility that our rough and ready terms such as ‘red’ could so sensitively classify objects.” Epistemicists counter that this bafflement rests on an over-estimate of stipulation’s role in meaning. Epistemicists say much meaning is acquired passively by default rather than actively by decision. If some boundaries are more eligible for reference than others, then the environment does the work. If nothing steps in to make a proposition true, then it is false. Or so opines Timothy Williamson.