Back in July, Siegel pointed out that the M2 money supply is 30% over pre-pandemic levels and predicted that would translate into 20% cumulative inflation over the next 3 years. Here are my talk notes / video links if you're interested: https://neapowers.com/investing/jeremy-siegel/
In July Siegel said "There is zero need for the Fed to be buying $120 billion in bonds every month given market conditions." I don't know why the Fed is buying mortgage backed securities in the midst of an apparent housing bubble.
Larry Summers was voicing inflation concerns back in March: https://www.youtube.com/watch?v=PBnaahSe7JU&ab_channel=Bloom...
The main macroeconomists I follow (Siegel, Gundlach, Summers) are all puzzled by the Feds actions recently.