[lumost]

as I've gotten older, I've learned that it matters where you invest your "extra capacity". If you invest it in leisure, it's often good for a time - but depressing in the long term, if you invest it in work - you can risk burnout. I'd argue that investing it in any particular area all the time will lead to some form of burnout.

The key is to look for where you get the most return on invested energy. There are times where work is a thankless grind that doesn't care if you put in 20 hours or 80. There are times where putting in an extra 5 hours leads to a promotion/accomplishment of note. When you have 40 hours of spare capacity, binging netflix is not going to make you happy in the long term.

At the office, expecting everyone to want and be able to put in 60 hours a week is going to be a problem. I did this for my first 3 jobs, and it caused friction with those who are putting in their 30/35. Ultimately, it lead to me burning out and changing jobs rapidly for 5 years - because I wasn't getting out of my job something commensurate with the extra investment I was putting in.