Imagine LLMs reach their potential and the general field of 'cognitive work' starts to be able to be largely automated. What happens then? I think there's some precedent with the Industrial Revolution. The increased productivity and the like did lead to some 'super farms' and the like, but the real change is that it left a vacuum in the economy. That vacuum was filled by industry such that even the 'super farms' started to be a vanishingly small part of the overall economy.
I think the same will happen with LLMs. They're going to create a vacuum in the economy, on a global level. And I think what will come next is something in the real world (as opposed to the digital) filling it. Humanoid robots might be myopic, but I think it's, at worst, a pretty decent guess. One basic goal would be able to automate typical service jobs, both in terms of normal employment - but also even within households. A low cost highly capable robotic maid would have a massive market.
I'm hand-waving away the dystopia of this all, because I ultimately think humans will still play a key role - but trying to predict what that role may be is impossible from where we're standing. Imagine trying to predict the consequences of mass industrialization when you've lived you're entire life in an agrarian society. There's just no real basis for an intelligent prediction, besides 'way different.'
You're saying the vacuum in the economy (people without an income source) will be filled by something else that leaves people without an income source? Who's paying for the robots? If people find themselves with more time than money, they're not going to buy robots to free up more time