"In 2010, Turchin published research using 40 combined social indicators to predict that there would be worldwide social unrest in the 2020s"
https://en.wikipedia.org/wiki/Peter_Turchin
"In 2010, Turchin published research using 40 combined social indicators to predict that there would be worldwide social unrest in the 2020s"
https://en.wikipedia.org/wiki/Peter_Turchin