>when people say that we decrease our societies working hours by 1/2, 2/3, etc they are saying that we should halve the number of doctors, teachers, pilots, far

>when people say that we decrease our societies working hours by 1/2, 2/3, etc they are saying that we should halve the number of doctors, teachers, pilots, farmers, etc. No, they mean there should be twice as many of them working half as much (or less, if there are productivity improvements). Obviously that would be hard to achieve in the short term, because these jobs require training, but that doesn't mean it's impossible.