 But, second, do we ever happen to hear events in the medium? We actually do, but in a somewhat indirect way. Consider the visual realm. In some cases both a thing and (a part of) a medium between us and the thing are seen. This happens when we look at things through irregularly warmed air, or through moving water. In these cases, we see both the thing and the medium, the thing in an unclear way, and the medium as that which makes the thing appear in an unclear way.