This is true if the 40 hours that you spend is on deep work. You are pushing your intellectual limit all the time. Practically this isn't the case right ? Most

This is true if the 40 hours that you spend is on deep work. You are pushing your intellectual limit all the time. Practically this isn't the case right ? Most of our work, whether we like it or not, falls into the realm of JSON parsing. 50-60 hours of such work is still fine in my opinion.