There is a rumor swirling on Wall Street that China may be reversing its decades-old policy of buying U.S. Treasury Bills (T-Bills), which is giving bond-traders a case of nerves.  If China does not buy T-Bills, then the Federal Reserve will have to raise the yield on the bonds to make them more attractive to other buyers.  This rumor combined with the possibility that the Chinese economy will eclipse the U.S. economy in twenty years seemingly makes a thirty-year T- Bill less attractive than in the past. What a strange time in which we live, when cryptocurrencies like Bitcoin and Ethereum may be a...