  The relationship between entropy and information now becomes less clear. With the demon left out of the system, it is free to be considered an agent, who has information about the system. The uncertainty in the description of the system may be thought of as the demon's lack of knowledge about the exact state of the system. If the demon has more information, the entropy of the system is less. However, once the demon can acquire information non-dissipatively, the entropy of the system goes down and the only compensation seems to be an increase in the uncertainty of the demon's state itself.