An astronomical increase in the Fed balance sheet during the pandemic:
]
Despite trillions and trillions of dollars of QE by the Fed after the 2008 crash, the velocity of money kept declining. Thus, no inflation:
With QE on steroids during the pandemic, the velocity of money began picking up when the shutdowns were lifted:
Consumer expenditures (demand) rose to an all time high after the pandemic. The surge is seen from the bottom of the pandemic plunge followed by a rapid rise to new highs.
As a result in the spike of spending and consumerism, the number of shipping containers and the number of container ships at our California ports surged tremendously to record highs. This overwhelmed the system.