> Considering we've never had a civilisation last more than a few hundred [years] ... Huh? Current "Western" (= more or less global) civilisation is a direct c

> Considering we've never had a civilisation last more than a few hundred [years] ... Huh? Current "Western" (= more or less global) civilisation is a direct continuation (via the Renaissance and Enlightenment) of medieval European civilisation, which was a pretty direct continuation (via "Dark ages" and Migration Era) of antique Graeco-Roman civilisation. So a couple millennia, not centuries.