A key methodological insight from the Internal Strife chapter: **every U.S. government document automatically enters the public domain if not classified.** These operations documents and training materials are invaluable learning resources — more practical, direct, and honest than most public-facing content. **The "internal-only" heuristic**: Materials written for internal use within effective organizations are almost always worth reading. They don't spend time selling you on their core assumptions — you've already bought in if you're reading them. Ray Dalio's *Principles* started as internal-only at Bridgewater before being leaked and later released publicly. **Examples of high-quality internal documents**: - U.S. Army guidelines on running, strength training, nutrition, recovery, injury prevention (designed for 1M+ soldiers of varying fitness levels) - FBI firearms safety procedures - EPA ecology assessment guidelines - Treasury money supply assessment documents - Any counterintelligence or ops document from high-stakes government environments **Why internal docs are better**: Public writing is sanitized because authors want to avoid bad reactions. "No one does; everything written for general publication is sanitized, and often it's the most harsh, critical, and counterintuitive elements that are left on the cutting-room floor." Internal documents don't have this problem — they're written for people who need to get things done.