She's just summarizing the work of Cal Newport, who used it to get through an MIT PhD in Computer Science while writing a couple of books and managed to get an

She's just summarizing the work of Cal Newport, who used it to get through an MIT PhD in Computer Science while writing a couple of books and managed to get an assistant professorship at a major university shortly after graduating. She mentioned this in her article. If you look at the daily lives of some of the greatest scientists and creatives in history, you'll find that a surprising number of them have had similarly compressed schedules. Newport's blog discusses many of them.