These discussions of the ‘stream and sequence’ model in world history are a roundabout way toward reading WHEE at history-and-evolution.com and a general warning that the categories of evolutionary discourse, mostly darwinian are misleading us.
I am puzzled at the tenacity of the Darwin paradigm. All the smartest scientists are stuck on this and can’t get out of the morass. It will end in tragedy, as it did with the era of social darwinism.
This series of posts on the ‘stream and sequence’ model can help to try and visualize the large-scale motions of civilizations, which doesn’t follow darwinian logic.