Comment Those who ignore history (Score 5, Insightful) 100
There is a history of what we would now call industrial engineering and human factors going back at least as far as the first written records that shows that working more than a reasonable number of hours per week for any length of time leads to colossal decreases in productivity and quality, not to mention safety. If you have to work 18 hour days for two or even three weeks to get the crop in, yeah, that will work, but trying to keep human beings on this kind of schedule for very long leads to failure, burnout, and health problems up to and including death.