Lots of academics are from different countries than where they work. I couldn't imagine not visiting my family over the holidays. And what's with all the wisdo

Lots of academics are from different countries than where they work. I couldn't imagine not visiting my family over the holidays. And what's with all the wisdom we can read often, like good ideas come when doing something else, having fun, being bored. Working all day every day is not necessarily the most efficient, even if we care about nothing other than academic output. A clear headed idea after a relaxing vacation may save more time than was lost with the vacation. After some point keeping "working hard" will devolve to busywork, procrastination. Sure there are outliers who can work all the time, 12 hours every weekday, throughout the whole year, but those are very rare. In practice, I think a lot of what such "hard working" people do is busywork or procrastination for a significant number of hours. I've known successful PhD students who are very deliberate about their time. In the lab they only work, and put away time for regular exercise, social life and trips to interesting places to refresh the mind.