As a reply to several posts regarding the industrial capacity of the US.
The US has fought every war since WWII with one (both?) hands tied behind its back.
Everything is about not disrupting civilian life back in the States. The Vietnam War came closest to doing this (=forcing Average Joe to making sacrifices), and in the end the US lost because it threatened to actually make a difference.
Every war since? Not even a blip, in comparison.
If the US were to ever make an effort on the scale of WWII, that is, transform into a war-time economy, it would totally and easily be able to produce thousands of fighter jets and tanks, and once more be able to lose 50 bombers in a single mission and still call it a success.
Please don't confuse what a country can do in these two modes:
a) regular citizens don't even have to realize the country is fighting a war in the first place
with
b) the US government forces every young man (and woman?) into uniform. Every corporation is possibly forced to produce war materiel (at gunpoint, if needed). Civilian stuff is reduced to basic necessities, and production of war materiel is doubled and doubled and doubled and THEN doubled again. Trillions of dollars that previously couldn't be allocated to saving the climate or feed the poor suddenly materialize to send technological development into the stratosphere.
The US is many MANY times richer and more capable in 2020 than in 1940. If it's capable of doing most of the things the US managed back in WWII while still allowing its citizens to focus on such important things as hating each other on Facebook and purchasing new iPhones

, imagine what it could do if some outer force REALLY stirred the ant-hive, and magically made most Americans agree it was worth risking your life to defend the free world?
On topic

I took the second booster yesterday (shot number 4 for those counting). The clinic said it was an updated formula (from Pfizer), but noone seemed to know
which updated formula (I think there are two?)