I think that one should only spend 36-40 hours a week on work, but one should also spend plenty of time outside of that honing one's craft. I think that neatly

I think that one should only spend 36-40 hours a week on work, but one should also spend plenty of time outside of that honing one's craft. I think that neatly squares the circle of burnout vs. getting to 10,000 hours.