Entropy

Entropy is a measure of how dispersed energy is within a system. It describes the lack of exergy in a system; at maximum entropy, a system has used up all exergy and has reached its zero state.

Entropy naturally increases with time, as exergy naturally decreases. Æthereal fluctuations through phenomena like sequencing and wind can introduce exergy from outside a system, allowing for a local decrease in entropy.

Entropy measures the number of microstates in a system. As entropy increases, the number of possible microstates within a system increases. Entropy scales directly with temperature, approaching zero as the temperature drops further.

On the æther, higher entropy presents as "valleys" of lower magnitude.