PONDER:Every civ formed its strategy after the Indo-European expansion resulted

PONDER:Every civ formed its strategy after the Indo-European expansion resulted in the bronze age collapse (1200bc). By 800 to 500 every major civ had reformed conceptually (strategically) as much as every major civ had reformed economically in response to the agrarian expansion. https://twitter.com/curtdoolittle/status/1417532490626080768