Re:Pfizer and Moderna vaccines may produce lasting immunity
by incrudible on Tuesday June 29, 2021 @04:41PM
(#27681450)
Placebo-controlled studies that verify that the benefits actually outweigh the risk can be counted into those foundations.
Speculative scenarios based on predictive factors that you could just fudge until the result looks "right" to you, those are the essentially quackery.
this is not handwaving, this is the foundation stone of modern medicine.