This is slightly less true for tech work though. If they don't have a cure for carpel tunnel syndrome by 2050, I'll retire I guess - but why should I when tech is so lucrative if it still somehow looks like how it does today?
Everyone seems in such a rush to stop earning money. Maybe be in a rush to get a "rest and vest" job instead? I plan to be some senior director at the 2050 equivalent of a sleepy and comfy giant company like IBM or Salesforce. By the time they realize I've stopped delivering value half a decade ago and lay me off, I'm already old enough to get the maximum possible monthly social security benefits AND will have prolonged my tech wealth earnings, likely with a house which is hopefully paid off. And I haven't even mentioned the golden parachute of long term severance packages!
I get it if you're doing back breaking work, but this is HN! Most of the folks here have nothing more to worry about except eye strain/blindness, deafness, and carpel tunnel.