And there you have it!
Level 3: Production visibility
。PDF资料对此有专业解读
从美国两百年债务与GDP比值（红色曲线）的统计图能直观看出，每一次债务峰值都对应大规模战争，进入法币时代后债务再也没能回落到战前水平。图片来自《The Next Generation of Austrian Economics Essays in Honor of Joseph T. Salerno》。关于这个话题，PDF资料提供了深入分析
US-Israel war on Iran – live updates