Courtesy of Ryan Avent.
What we see in the first image is that even if one takes into account the unconventional monetary policy actions the Fed has used through this crisis, the federal funds rate target remains nearly 4 percentage points above the level at which you’d want it. And in the second image we see that the huge growth of the Fed’s balance sheet has basically done nothing to increase long-run inflation expectations. Inflation is no concern at all; in fact the Fed should be doing more.
As it stands, the question of the day is not what more the Fed should do but how long the Fed should wait before undoing.
If you have no opinion on these things then go and start learning about monetary policy and then start worrying about what the hell is going on.