Difference is that they had to work all the time to generate enough wealth to produce enough to stay alive. We just fill up the day to 8 hours because "everyon

Difference is that they had to work all the time to generate enough wealth to produce enough to stay alive. We just fill up the day to 8 hours because "everyone has to work 8 hours a day" -- even when the productive parts could be done in 30 minutes per day.