Fighting the last war: It is often said that generals fight the last war that they have won, even when those tactics are no longer appropriate to the war they are fighting today. The same point has been made about macroeconomic policy: policymakers cannot avoid thinking about the dangers of rising inflation, and in doing so they handicap efforts to fully recover from the Great Recession.
Another military idea is the benefit of using overwhelming force. In the case of inflation we have two legacies of the last war that are designed to prevent inflation reaching the heights of the late 1970s: inflation targets and in many countries independent central banks. Do we need both, or is just one sufficient? I think this question is relevant to the debate over helicopter money (financing deficits by printing money rather than selling debt).
Why are helicopter drops taboo in policy circles? Why is it illegal in the Eurozone? The answer is a fear that if you allow governments access to the printing presses, high inflation will surely follow at some point. ...
I think...: yes, in the grand scheme of things we should worry about inflation and debt, but right now we are worrying about them too much and therefore failing to deal with more pressing concerns.