I don't think it's nonsense at all. It sucks until you get used to it. After you get in the habit of it, the time available in a day feels almost doubled. And

I don't think it's nonsense at all. It sucks until you get used to it. After you get in the habit of it, the time available in a day feels almost doubled. And there's (I suppose) the benefit of working fasted which generally enhances focus.