This chapter is my working map of where to look when I want to build something useful: domains that might matter, problems that could be worth solving, skills that support the work, and raw material for ideation. It is detailed and a bit catalog-like on purpose. The point is not to “cover everything,” but to have a place to think in the open.
None of this replaces judgment. In practice, direction is guided by what I find interesting, by curiosity, by problems I actually feel (mine or people close to me), and by what I can go deep on without faking enthusiasm. The lists are constraints and prompts, not a curriculum.
The short synthesis in chapter 1 explains how problems, ideas, skills, and value fit together as a loop. Here, the same ingredients appear in long form: personal requirements and future assumptions, macro-areas, what I exclude, and skills I care about. That page links to deeper skill notes (04.1 through 04.7), starting with Ideation and connecting ideas.