Henry quoted Stolen Focus by Johann Hari
The evidence is clear, Earl told me: there's no alternative, if you want to do things well, to focusing carefully on one thing at a time. As I learned all this, I realized that my desire to absorb a tsunami of information without losing my ability to focus was like my desire to eat at McDonald's every day and stay trim-an impossible dream.
— Stolen Focus by Johann Hari (Page 42)