Long-form, nerdy essays on the intersections of AI, technology, economics, and how things actually get made.https://themarginalnotes.com/en-ushttps://themarginalnotes.com/posts/old-guard-quiet-war/https://themarginalnotes.com/posts/old-guard-quiet-war/Silicon Valley's defense companies are no longer just selling software to the Pentagon. They are building its shipyards and launching its satellites. The question is whether they are replacing the old guard or becoming one.Tue, 13 Oct 2026 00:00:00 GMTDefenseManufacturingShipbuildingSpaceSoftware