And it came together with new rapid prototyping technologies for vaccines, and far better computer modeling than anything anyone has ever had before. Like, there were a bunch of technologies that just happened to be coming into maturity at almost the same time, and between those technologies and the combined powers of most of the major vaccine labs on the face of the planet, and the near-infinite money to tie all of that in a nice package, a vaccine was developed in 10 months
It’s really a story of humanity actually pulling their shit together and deciding to throw all their chips in a pile, as it were.