> The mechanism for how these vaccines work is pretty straightforward, well understood, and quick acting. Before 2020, mRNA was only considered a theoretical o

> The mechanism for how these vaccines work is pretty straightforward, well understood, and quick acting. Before 2020, mRNA was only considered a theoretical or experimental candidate for use in humans. Sure, we have a theory behind the mechanism, but that's it. Your implication that we know all about what these novel, unfamiliar mRNA vaccines will do is flat out wrong. > This idea that there is some sort of known risk of a significant issue popping up out of nowhere months or years down the road has no historical precedent. That's because there's almost no precedent at all. https://link.springer.com/protocol/10.1007%2F978-1-4939-6481-9_1 https://link.springer.com/protocol/10.1007%2F978-1-4939-6481... https://en.wikipedia.org/wiki/RNA_vaccines https://en.wikipedia.org/wiki/RNA_vaccines