> You can't change a process - especially not a medical one for 100s of millions of people - and then say "We're 100% certain of this. This is all new.

The testing process? Of course we can, statistics is quite an established and predictive science.

Again, looks like you have a problem with a non-traditional process. You also seem to have a falling for low-quality science journalism. Both are understandable, but your failure of understanding the vaccine policies around the pandemics were due to your partial understanding, and not fault of the policies.