I think Terry Tao's advice is consistent with the original article: > There is an important distinction between “working hard” and “maximising the number of ho

I think Terry Tao's advice is consistent with the original article: > There is an important distinction between “working hard” and “maximising the number of hours during which one works” ... Generally speaking, it is better to try to arrange a few hours of high-quality working time, when one is motivated, energetic, prepared, and free from distraction, than to try to cram into one’s schedule a large number of hours of low-quality working time when one or more of the above four factors are not present.