Manufacturing matters, and six years ago, I said that one side effect from the pandemic is that mRNA technology, which had been lab-scale stuff, suddenly had dump-trucks full of money appearing to help them scale their manufacturing.

They apparently settled on the the sequences for the original covid vacs in a weekend. Going from that design to billions of doses is one of the hardest things to do, but once done, will persist. And it is ready to be deployed for the next hundred applications that we find for this.

Flu vaccines is an obvious application, since the prior egg-based manufacturing required about six months lead time and millions of eggs, but nobody wanted to invest in anything better.