Reply 1: We have to start somewhere in philosophy. This kind of reply can be spelled out in two ways. There is a ‘Moorean’ move that says that the premise that there is one cloud in the sky is more plausible than the premises that would have to be used in an argument against supervaluationism. Alternatively, it might be claimed that the main argument for supervaluationism is an inference to the best explanation. In that case, the intuition that there is exactly one cloud in the sky, but it is indeterminate just which object it is, is something to be explained, not something that has to be proven. This is the kind of position defended by Rosanna Keefe in her book Theories of Vagueness. Although Keefe does not apply this directly to the Problem of the Many, the way to apply her position to the Problem seems clear enough.