An auto-generated index of every ## Open questions section across Facts. Source of truth lives in each entity’s Facts page — when you find a primary source that closes a question, edit the corresponding Facts page (not this index) and the next site build will rescrape and drop the question from the listing.

For the curated cross-cutting research-agenda (with the slow-motion mystery framing, prioritized research angles, and resolved chapters as one-line pointers), see the Mystery page. The Mystery page tells the story of the research arc; this page is the exhaustive working list of what’s still unanswered.

This page is rebuilt on every Jekyll site build by scripts/open_questions_build_jekyll_page.exs. Pages without a public Jekyll URL (KB-only synthesis pages without jekyll_filename:) are skipped because the index links each question back to its source page.