The 99-Year Engine Room: Shale, Stablecoins, and Coolidge's Two Engines
A JD Unfiltered Report, with a Future Codicil on the Super Coupon Layer. The analog framework that anchors this publication, 1921 as 2020, 1927 as 2026, 1929 as 2028, makes a testable claim: eras of American swagger are not moods, they are machinery. Each is powered by two engines running