It is impossible. The average interest rate of bond funds such as national debt and financial debt is only about 3%, and corporate debt is slightly higher, but it will not exceed 10%. These all mean that the credit rating is above AA. Bonds issued by enterprises below AA level are subordinated debts, and the interest rate is relatively high, but it will not exceed 15%. Bond funds will not allocate all kinds of bonds based on safe-haven demand, so it is reasonable to have a debt base of 4%-6%. 50% is bullshit.