According to CoinMeta, a wave of bond selling has pushed long-term borrowing costs to multi-decade highs, with long-term bonds becoming the focus of investors' concerns. From inflation to the debt-ridden AI boom, various worries are being reflected in this market. Yields on government bonds in almost all countries are soaring. This week, the yield on 30-year U.S. Treasury bonds reached its highest level since 2007, France's borrowing costs reached their highest since 2008, Germany's bond yields are close to 2011 levels, and UK bond yields are also near their historical highs. The market fears that an increasingly fragmented world order will make economies more vulnerable to supply shocks and persistent inflationary pressures. The Chief Investment Officer of a French Paris-based asset management firm axa im core chris iggo stated: "It's difficult to determine what level of yields is needed to improve the overall return prospects for long-term fixed-income assets. The only factors that could change this situation would be a sudden weakening of economic data or some kind of external shock."