It's almost as if we live under capitalism and many people, rational economic actors even, have this goal of maximizing their earnings over the course of their careers, how crazy! If you work hard for a decade at a FANG, you should be well off enough to not have to work another day in your life, if you live frugality and invest every penny you can and move to a low CoL area. Who cares about a possible AI downturn if you're independently wealthy and don't need that paycheck. I don't know about owning a house in California, but not needing a job sounds pretty damn nice to me!