The bankers of Wall Street have an obsession: not to miss, with the emergence of the cryptomonnaies, a major technological and conceptual revolution. "I know people were skeptical when the notes took gold," said Lloyd Blankfein, Goldman Sachs' boss, on Tuesday (October 3rd), on Twitter, who did not rule out going into the market bitcoins. "I always think about bitcoins. No conclusion - no support or rejection. According to the Wall Street Journal, the bank is considering setting up a small team to serve as large institutional clients buying such currencies as buying Coca-Cola shares or treasury bills. The market exists, 70 hedge funds (hedge funds) now invest in these virtual currencies, whose daily trade reaches 750 million dollars.