"To me the biggest mystery about the 2008 crisis is why so much QE has resulted in so little inflation." I don't know if this is the correct answer, but a very

"To me the biggest mystery about the 2008 crisis is why so much QE has resulted in so little inflation." I don't know if this is the correct answer, but a very simple answer would be that we were/are in a massively deflationary environment and (things like QE) have been necessary just to stay in place ...