The collapsing black hole, as I called it many years ago. Eventually there's not enough power outside the inner circle to reverse the concentration of wealth an

The collapsing black hole, as I called it many years ago. Eventually there's not enough power outside the inner circle to reverse the concentration of wealth and power: at least, that was Marx's analysis, particularly of the cycles of warlordism (of a few centuries) in Chinese history, if I remember rightly. Enough time and the aristocracy becomes incompetent and dissolves into revolution and the cycle starts again.