In November 2008, the Federal Reserve launched Quantitative Easing — the purchase of long-dated Treasury and mortgage securities with newly-created reserves. It was, mechanically, money-printing. Politically, it was called 'unconventional monetary policy.' The innovation was not the printing; central banks had been doing that for three centuries. The innovation was that the printing became invisible to most people — the new money entered the financial system through bond purchases rather than fiscal deficits, and its effects showed up in asset prices rather than in consumer goods. Alongside QE, central banks have developed a toolkit of yield-curve control, reverse repo operations, currency swap lines, and measurement adjustments to the inflation indices themselves. The era's thesis: debasement still happens; it's just harder to see.