Thx. Shelby is good in debunking complex stuff

But tell him pls to distinguish strictly between real world and models we try to cast from it. Fist is math.

Then economics and game theory

In real world there is no equilibrium, also nothing sustainable like a Nash equilibrium

Proof: if there is equilibrium, nothing more will change, it is called death

Better model is Stackelberg. But again- a poor model

For Bitcoin it is the same, there is a perfect model of the stable true Bitcoin, but there is only one real live instance running of it - not perfect, not in Nash equilibrium, but living

Hope that helps