> Traditional vaccines have also been "unreasonably effective"
AFAIK not really. I know just about Sinovac and that was significantly worse efficacy than other vaccines. Note that adonovirusvector based vaccines like AstraZeneca one are not 'traditional vaccines' but also rather new tech.
That’s why I put old in quotes. mRNA is also nothing new, just new at this scale. People are just acting like it’s something that was just invented over the last year.