Once the owning class owns mostly everything and* has intelligent machines that serve them, The Economy crashing will not have real consequences for them. It barely has real consequences for them already -as they have consistently ended up richer after the dot com bubble, the 2008 recession, and the covid recession.*

The coming out richer part is undeniably true, but I have doubts about the conclusion, which is something like "after oligarchs own everything, they don't need many people". Look, even the old Bell System required participation of about a third of the US population.

Oligarchs might be able to have young, fit concubines, and loyal, retainers with steel thews if there's a population of less than a third of today, but they'll have trouble maintaining their health because there will be fewer doctors and no specialists. Telegram communications might be possible, but who's going to maintain gigawatts of data centers for such a population? I'm pretty sure "AI" will slip away in such a world, but who needs waifus when real harems can exist?

> they'll have trouble maintaining their health because there will be fewer doctors and no specialists

They are absolutely counting on AI curing cancer and robot doctors with the goal of eternal life, possibly in space. It's transhumanism or some variant of it (which by the way Jeffery Epstein and his friends -- these same billionaires) were very much into.