[bandushrew]

I think maybe a key mistake economists make regularly is equating an equilibrium with a lack of change.

In nature stability - on average - is often achieved by matching peaks and troughs, not by a lack of change (nature abhors a lack of change)

(see vacuum fluctuations)

[VladRussian]

>In nature stability

or at least in somewhat understandable models beyond simple linear ones:

http://mathworld.wolfram.com/StrangeAttractor.html