I'm generally more sanguine with mRNA vaccines than other sorts. The problems we've historically had with vaccines have mostly either been with live attenuated

I'm generally more sanguine with mRNA vaccines than other sorts. The problems we've historically had with vaccines have mostly either been with live attenuated viruses that turned out to not be attenuated enough or with adjuvants. With mRNA there's no virus at all and it works via the normal cell viral infection detection pathways so no need for an adjuvant that might accidentally sensitize you to something else.