The most important chart that nobody at the Fed seems to pay any attention to, and certainly none of the economists who urge the Fed to accelerate its monetization of Treasury paper, is shown below: it shows the Fed's total holdings of the entire bond market expressed in 10 Year equivalents (because as a reminder to the Krugmans and Bullards of the world a 3 Year is not the same as a 30 Year). As we, and the TBAC, have been pounding the table over the past year (here, here and here as a sample), the amount of securities that the Fed can absorb without crushing the liquidity in the "deepest" bond market in the world is rapidly declining, and specifically now that the Fed has refused to taper, it is absorbing over 0.3% of all Ten Year Equivalents, also known as "High Quality Collateral", from the private sector every week.