The spending they did do was probably illegal (glad they did it). They took ~$10 billion from other programs. Why didn't Congress allocate $50 billion?
The piece the New York Times did on production of the Pfizer vaccine makes it pretty clear that a lot of the production is not new (bioreactors and the like). I realize it isn't trivial to do that sort of production, and don't really disagree with "Arguments from hindsight aren't particularly convincing.", but I also haven't seen a single piece of information on what fundamental limit was run into. The mixing of the mRNA and lipids got a lot of attention, but there wasn't any clear 'here's why we can't go twice as fast' information published, as far as I saw.
The piece the New York Times did on production of the Pfizer vaccine makes it pretty clear that a lot of the production is not new (bioreactors and the like). I realize it isn't trivial to do that sort of production, and don't really disagree with "Arguments from hindsight aren't particularly convincing.", but I also haven't seen a single piece of information on what fundamental limit was run into. The mixing of the mRNA and lipids got a lot of attention, but there wasn't any clear 'here's why we can't go twice as fast' information published, as far as I saw.