So far that just describes any good science paper or math textbook; the difference is that he's writing about questions of great interest to HN, like in this case "how to build a web service", "how to do software version tracking" (https://danluu.com/monorepo/), "how to do statistics" (https://danluu.com/linear-hammer/), "why hardware development is hard" (https://danluu.com/why-hardware-development-is-hard/), "why everything is broken" (https://danluu.com/nothing-works/), and "how to hire talented people" (https://danluu.com/talent/). These are topics where there is an enormous amount of hot air out there on the web, but very little that is epistemologically justifiable.