HFT computers have almost depleted the independent human day traders. This has setup the match they wanted all along. A continual shakedown of the Federal Reserve, whereby the Fed recognizing it can never let the market go down again in a large amount, they will threaten a flash crash to permanently cripple the investment public's mental state if they don't get a Fed computer to take up slack in algorithm infinite loops. If the algorithms don't sense a profit exists, A.K.A. "slow human traders", then they will vacate the role of creating activity to show life and stop or deadlock in an infinite loop creating a flash crash. The Fed is happy to give money to the HFT shakers because they perform a vital function of creating a scene. Showing life, making numbers flip around, and most importantly -try and get an innocent real world life to enter the slaughterhouse and capture real investment dollars. The more money the Fed feeds an HFT computer owned by a bank with access to Fed borrowing privileges, the less need to make that transfer an interest baring loan from the Fed to the bank. The money is free, fed through HFT trading to banks, no longer needing to take money in the form of a loan, not that much interest is take on it right now anyway.