Group 1 - The article discusses the recent cooling of the U.S. 20-year Treasury auction and the poor performance of Japanese bonds, signaling potential financial crisis risks [1][2] - It highlights the resurgence of stagflation and the failure of Keynesianism, drawing parallels to the 1970s economic turmoil [1][2] - The article critiques Modern Monetary Theory (MMT) and its implications for U.S. and Japanese debt levels, with Japan's debt-to-GDP ratio at 260% and U.S. federal debt surpassing $36 trillion [2][3] Group 2 - The concept of "privileged currency" under MMT is examined, suggesting that the ability to print money is being challenged by rising bond yields, with U.S. 30-year Treasury yields exceeding 5% [2][3] - The article argues that the illusion of "debt monetization" is being dismantled as inflation pressures shift to asset bubbles and currency volatility [3][4] - It emphasizes the historical context of Japan's economic policies and the potential consequences of reduced bond purchases by the Bank of Japan [5][6] Group 3 - The article notes the rise in gold prices as a reaction to the perceived failures of the modern monetary system, indicating a loss of confidence in sovereign currencies [4][5] - It discusses the implications of Moody's downgrade of the U.S. credit rating and the potential for a currency devaluation-type default, with estimates of a 30%-40% loss in purchasing power for investors [6][7] - The article warns of a potential financial crisis as foreign investment in U.S. debt declines, reminiscent of the 1971 "Nixon Shock" [6][7] Group 4 - The article concludes with a historical perspective on the cyclical nature of economic theories, emphasizing the importance of learning from past mistakes and the need for genuine economic recovery based on productivity and equity [7][8]