Strauss & Howe
Cyclical Limit — Fourth Turning
"The Fourth Turning" (1997). ~80-year Saeculum divided into 4 turnings: High, Awakening, Unraveling, Crisis. Current Crisis turning began ~2008. Predicts climax in 2030s. BST integration: the 80-year cycle nests inside the 138-year Phoenix. Generational archetypes (Prophet, Nomad, Hero, Artist) repeat. The current "Hero" generation (Millennials) parallels the GI Generation who fought WWII. The structural pressure geometry of the engine captures what Strauss-Howe describe narratively.
Also in BST Theoretical Foundation
Donald HoffmanCognitive Limit — FBT TheoremKarl FristonCognitive Limit — Free Energy PrincipleJoseph TainterHistorical Limit — Complexity CollapsePeter TurchinSocial Limit — Elite OverproductionGaya HerringtonPhysical Limit — BAU2 CorrectionSeshat Databank / EMEWSEmpirical Bedrock + Genesis SimulatorSerge GalamSociophysics — Inflexible Minority TheoremDirk HelbingRecursive Collapse — FuturICT