how much of that work requires physical labor? when I think of the work to be done, I think of like, building roads and houses and factories, transitioning to renewable energy, staffing hospitals with doctors and nurses, picking up trash on the street, cleaning up oceans, research in biology and pharmacology.

I don't really think of filing paperwork, or writing code, or meetings in general. It's the stuff that requires arms and legs and fingers that's our bottleneck. ChatGPT can't help with that. Robots can, but RL is lagging.