When AI does all the work for us, what will we humans do?
Always in the past (but who knows in the future), implementation of automation resulted in more jobs for humans overall, like a productivity increaser instead of a replacement. There are some humans put out of work, then other jobs for way more other humans. Power loom and textile industry is just one example of that.
Also, humans like things that are made by humans. People will pay more for furniture made by hand by Amish people than made in a big factory. Or pay more for art painted by a human.
Then there are jobs that AI isn't able to do until it has a body that works as well as a human body.
And LLM AI is probably not the structure that will overtake humans. So we are supposing new architectures of it come along and work far better.
The AI field is full of things that look amazing at first. An exponential increase in capability at first. But then it rolls over and asymptotes out, with progress that overall looks like a sigmoid, not an unbounded exponential. And we have to wait for the next different technology to come along with a sigmoid that goes higher than the previous sigmoid. I don't know for sure, but my guess is that LLM's will do the same. Top out at some level that is impressive and revolutionary, but not a replacement for all humans. And no one will know what or if the next thing will be.