Ray Dalio* is a good source, his articles on these issues are always backed by data and historical trends.
One of his latest ones: https://www.linkedin.com/pulse/three-big-issues-1930s-analog...
One of his latest ones: https://www.linkedin.com/pulse/three-big-issues-1930s-analog...
Christ nobody wants to live in 1935-1945. That period set the All-time record for violent death
https://www.vox.com/2015/6/23/8832311/war-casualties-600-yea...