This is assuming everyone would happily do their duty and also that the math would actually work out. I think the math is the bigger problem even though human n

This is assuming everyone would happily do their duty and also that the math would actually work out. I think the math is the bigger problem even though human nature is always a wrench in the gears of any such scheme, it's the math that dooms systems like this to implode after a while. The scheduling alone doesn't make any sense, to replace one full-time career of 45 years you'd need to break that up into say 9 five year stints. Then also considering that crappy jobs far outnumber 'good' jobs you'd be looking at rotating through a series of them, changing every 5 years until retirement because if you didn't and everyone 'retired' from having to work a crappy job after one 5 year term then you'd have a massive shortage of workers in no time. So everyone has to work a career that consists almost entirely of shitty jobs but they're forced to change jobs all the time so they can never really get good at any of them and then they retire when they're too old and worn out maybe with a single 5 year stint as a not very good accountant or something?