It would be more apt to say the spring is in a high viscosity fluid. It takes some time for the fluid to move away because there is some friction in the system.

It would be more apt to say the spring is in a high viscosity fluid. It takes some time for the fluid to move away because there is some friction in the system. It's free to make small movements quite quickly but the longer ones are damped. But there is a spring in there with one end connected to something. In the case of BTC it's probably connected to a much larger mass in the fluid that can move itself, not held down like some fiats.