I'm open-minded, but find this hard to believe. Look at investment bankers or management consultants or doctors. These professions require very long hours, and

I'm open-minded, but find this hard to believe. Look at investment bankers or management consultants or doctors. These professions require very long hours, and the work is clearly mental, not physical. I myself work as a consultant, and my work is 100% mental, but I don't feel that working 40 hours is cruel. Even working 70 hours is a pain, but I wouldn't call it cruel.