Loose Threads- The Advanced Theoretical Physics Working Group

TL;DR — A 241-page compilation of documents and notes about the 1980s Advanced Theoretical Physics working group on UFOs, organised by Col. John B. Alexander.

How much weight it carries: Self-published UFO research. Some primary documents inside; the framing is advocacy.

Where this came from

• Will Manidis’s “most underrated PDF” thread, July 2023 — routing record: The Most Underrated PDF on the Internet (July 2023)

241 pages. A copy is archived locally against link rot; the header links the original source.

The archived copy is split into 2 parts to stay under GitHub’s file-size limit; the parts’ page counts sum to the original 241.