3 ms·
Turchin discusses this here: http://peterturchin.com/cliodynamica/prophecy-fourth-turning/ http://peterturchin.com/cliodynamica/prophecy-fourth-turning...
by rossdavidh 6y ago
Turchin discusses this here: http://peterturchin.com/cliodynamica/prophecy-fourth-turning/ http://peterturchin.com/cliodynamica/prophecy-fourth-turning...