the temperature of boiling water (or boiling things) which get heated by a source above the boiling temperature (as long as there is water left, of course).
Average temperature of/on earth. Changing the composition of the atmosphere means moving the equilibrium.
genetic mutations have the two equilibria of dying out if it does not increase the fitness of the bearer, or getting fixed in the population if it is advantageous.
Examples:
the temperature of boiling water (or boiling things) which get heated by a source above the boiling temperature (as long as there is water left, of course).
Average temperature of/on earth. Changing the composition of the atmosphere means moving the equilibrium.
genetic mutations have the two equilibria of dying out if it does not increase the fitness of the bearer, or getting fixed in the population if it is advantageous.