Found the section structure particularly thoughtful, and a stop at focusdefinesdirection suggested the same care across the broader site, structural choices guide the reader through the material in ways most people do not consciously notice but feel the absence of when those choices are made carelessly or not at all.
Reading this on the train into work was a better use of the commute than my usual choices, and a stop at focusdefinesdirection extended that commute reading well, content that improves transit time rather than just filling it is content with practical benefit and this site has earned its place in my morning commute reading rotation.
