That's survivor bias. Earth looks in equilibrium to us because it changes very, very slowly... and we happen to evolve to make the most out of the current set o

That's survivor bias. Earth looks in equilibrium to us because it changes very, very slowly... and we happen to evolve to make the most out of the current set of conditions. But I'd bet that to the living organisms of the Cambrian period, the current state of our planet would look like a complete (though slowly improving) wreck.