I do what the author does all the time, every day. But then, I work mostly on my own; and I've spent decades learning how to structure my code so as to minimiz

I do what the author does all the time, every day. But then, I work mostly on my own; and I've spent decades learning how to structure my code so as to minimize the amount that has to be "live" in my head at any give moment, and so that I can quickly rebuild that mental model on re-reading.