  A simple solution to the puzzle is to reject premise 2. Each of the relevant fusions of water droplets looks and acts like a cloud, so it is a cloud. As with the first option this leads to some very counterintuitive results. In any room with at least one person, there are many millions of people. But this is not as bad, I think, as saying that there are no people. And perhaps we don't even have to say the striking claim. In many circumstances, we quantify over a restricted domain. We can say, “There's no beer,” even when there is beer in some non-salient locales. With respect to some restricted quantifier domains, it is true that there is exactly one person in a particular room. The surprising result is that with respect to other quantifier domains, there are many millions of people in that room. The defender of the over-population theory will hold that this shows how unusual it is to use unrestricted quantifiers, not that there really is only one person in the room.