I actually think it owes to the fact that it was never reasonable for any worker to work “overhead” all day, unassisted; the human body can’t take it. Working

I actually think it owes to the fact that it was never reasonable for any worker to work “overhead” all day, unassisted; the human body can’t take it. Working with your arms outstretched in front of you, Minority-Report-style, has been determined to be not feasible due to fatigue, so how is working overhead reasonable? I’ve never been in a car factory or on an assembly line, but from an armchair it sounds bound to lead to a lot of strain. Why not have workers lie on their backs on carts or something?