I see. My model is something like: working uses up some mental resource, and that resource being diminished presents as “it’s hard for you to work more hours without some sort of lifestyle change.” If you can work more hours without a lifestyle change, that seems to me like evidence your mental resources aren’t diminished, and therefore I would predict you to be more productive if you worked more hours.
As you say, the most productive form of work might not be programming, but instead talking to random users etc.
I see. My model is something like: working uses up some mental resource, and that resource being diminished presents as “it’s hard for you to work more hours without some sort of lifestyle change.” If you can work more hours without a lifestyle change, that seems to me like evidence your mental resources aren’t diminished, and therefore I would predict you to be more productive if you worked more hours.
As you say, the most productive form of work might not be programming, but instead talking to random users etc.