Entropy

Your luck surface area relates to the natural concept of entropy, which measures the amount of disorder in a system. In a clean room where there is a rule for where everything goes—socks in the sock drawer, shirts on hangers, etc.—there are not many possible configurations for everything in the room because of these strict rules. The maximum amount of entropy in this arrangement is small. If you relax those rules, for example by allowing clothes to go on the floor, there are suddenly many more possible configurations for everything in the room. The amount of possible disorderliness, the maximum entropy level possible for the room, has gone up significantly.