The NESS Condition

The NESS (Non-Equilibrium Steady State) condition describes a situation where a system continually flows or changes but maintains a stable, overall behavior over time. Imagine a river with a constant flow: water moves, but the overall shape and level stay the same. In NESS, energy or matter keeps moving through the system, yet its overall properties don't change. This steady but dynamic state occurs in many natural and engineered systems, such as living organisms, electrical circuits, or chemical reactions, where continuous input and output sustain a consistent, balanced condition beyond equilibrium.