I've been writing a Go book that builds a simulated world from an empty directory, and I want to be upfront about how it came together, because the numbers look strange without the context. The repo started on 2026-05-25 as a shelf of teaching books. The first chapter of The World, the big project book, landed on 2026-08-24. As of yesterday it has ten volumes, 105 chapters, and 2,800 pages, built over 18 working days and 212 commits. That pace is only possible because I draft with AI assistan...