I applaud the author for his tenacity. There is no doubt that kind of discipline produces results, both in terms of work product and personal advancement. However, I have serious doubts about the merits of writing a book about a subject intricacies and philosophy of which you have not yet had the chance to distill through the lens of experience. The method may, perhaps, work for simple recipes, how tos and other proc…
But more ephemeral topics benefit greatly from experience. When I was in the military, I benefitted greatly from the experience of my NCOs and much of what they passed on to me where things that would have been very hard to put into a book or discover through any process other than experience.
But I suspect most technical topics fall into the former category rather than the later.