Pfizer-BioNTech and Moderna’s mRNA platforms are amazing—but they could easily have been overtaken by more conventional rivals.
https://www.wired.com/story/the-race-for-a-covid-vaccine-was-more-about-luck-than-tech
https://www.wired.com/story/the-race-for-a-covid-vaccine-was-more-about-luck-than-tech