Yeah man, back before covid scared the living shit out of people like you I'm sure there was 'sureness'. So much 'sureness' that major investors in Fidelity were cutting huge chunks of one of the only MRNA companies valuations:

https://www.statnews.com/2017/01/10/moderna-trouble-mrna/ https://www.statnews.com/2017/06/28/moderna-writedown/

The only thing you were sure of is that you were terrified, and wanted anything and anyone to save you.

But hey I'm sure all those auto-immune diseases cropping up from the vaccines fall into the category of "sureness" :D