Maintain a system with low entropy, always means injecting more energy from the outside. Because the entropy in an adiabatic(closed) system always increases. S

Maintain a system with low entropy, always means injecting more energy from the outside. Because the entropy in an adiabatic(closed) system always increases. Sometimes the energy cost/(effort) can be higher than the benefit, or the cost of the opportunity of having a mud/noise system can be negligible. As other human constructions, sometimes best is not better, it depends on the metric.