Inequality and Skin in the Game

You do not create dynamic equality just by raising the level of those at the bottom, but rather by making the rich rotate –or by forcing people to incur the possibility of creating an opening. The way to make society more equal is by forcing (through skin in the game) the rich to be subjected to the risk of exiting from the one percent

Dynamic equality assumes Markov chain with no absorbing states

Our condition here is stronger than mere income mobility. Mobility means that someone can become rich. The no absorbing barrier condition means that someone who is rich should never be certain to stay rich.

Dynamic equality is what restores ergodicity, making time and ensemble probabilities substitutable

via https://medium.com/@nntaleb/inequality-and-skin-in-the-game-d8f00bc0cb46