Burn out is one reason to never give your all. Often you can do enough and the extra effort doesn’t provide extra utility. This goes back to the bogus education

Burn out is one reason to never give your all. Often you can do enough and the extra effort doesn’t provide extra utility. This goes back to the bogus educational demand that you should always work hard and do your best at school. I never bought into this and applied the metric of just doing enough to attain the goal, grade, or what have you. Doing more has much less RoI. Teachers don’t like this attitude but it’s what makes for entrepreneurs a success.