Sosa provides an illustration to motivate this problem. A snowball is made of a piece of snow in a "round" (spherical) shape and follows certain persistence conditions. Sosa introduces the concept of a "snowdiscall." A snowdiscall is "constituted by a piece of snow as matter and as form any shape between round and being disc-shaped." On this definition, a snowball is also a snowdiscall, but a snowdiscall is not necessarily a snowball. So there are two distinct objects that overlap. But just as there is a snowdiscall, there can be an indeterminate number of other objects: objects between round and 50% disc-shaped, objects between round and 30% disc-shaped, etc. These are distinct, existing objects and not just arbitrary descriptions. What seems to be arbitrary in absolutism is the idea that one object (the snowball) has more claim to existence than the others.