The distance between a car and its garage. The car tends to be parked at the same place every night, so it returns to 0, despite some perturbations that may happen. However, the car might eventually be moved to a different long-term garage.
Blood glucose levels. I think this applies to a lot of biological systems, actually. But blood glucose level will “spring back” from local perturbations.
Price of a commodity. There can be surges in demand and supply, but generally the price should stay in the same place.
The distance between a car and its garage. The car tends to be parked at the same place every night, so it returns to 0, despite some perturbations that may happen. However, the car might eventually be moved to a different long-term garage.
Blood glucose levels. I think this applies to a lot of biological systems, actually. But blood glucose level will “spring back” from local perturbations.
Price of a commodity. There can be surges in demand and supply, but generally the price should stay in the same place.