Equilibrium
Systems seek equilibrium.
Most systems spontaneously trend towards an equilibrium of competing forces.
Examples
https://interfaceware.atlassian.net/wiki/spaces/EC/pages/2777776171
https://interfaceware.atlassian.net/wiki/spaces/EC/pages/2778595336
https://interfaceware.atlassian.net/wiki/spaces/EC/pages/2780168207
Consequences
- big changes can be very disruptive