What I find striking about this, and other parts of the article, is how they seem like they must be contradictory. He spent 19 hours of his day working? Thats

What I find striking about this, and other parts of the article, is how they seem like they must be contradictory. He spent 19 hours of his day working? Thats exceptional. A feat I certainly couldnt achieve. But... he also spent an hour and a half playing high intensity tennis and/or taking regular walks to the shops near his house? That dosent sound like 19 hours of work to me. And he balanced his personal life and relationships whilst working 19 hours a day? Or did his family only see the benefits in the last 18 months (as he states near the end of the article)? So often when I read these "hack your life/productivity" articles and actually try to figure out the logistics, it just does not seem to check out.