Worst of all, if you measure your productivity by time spent, your only way to get ahead is to spend more hours in the office — to the detriment of the rest of your life. In research published in HBR in 2006, Sylvia Ann Hewlett and Carolyn Buck Luce reported that 62 percent of high-earning individuals in America (whom they define as the top 6% of earners) work 50 hours or more per week; 35 percent work 60 hours or more per week.
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I really can’t see any other way to describe than madness. I can’t believe a creative person can stay productive under such circumstances for more than few months.