FOR THE NERDS: Cycle Theory, from simple to hard: Wiki: Kondratiev and Kondratie

FOR THE NERDS:
Cycle Theory, from simple to hard:
Wiki: Kondratiev and Kondratiev Cycles (cartoon).
Generations by Strauss and Howe (intro)
Carrol Quigley the Evolution of Civilizations (general)
Peter Turchin: Secular Cycles; Complex Population Dynamics. (specific)
That’s it. https://twitter.com/curtdoolittle/status/1486021629780144134