I can see now that the scientific community from the CDC to the WHO to the FDA and their representatives, repeatedly overstated the evidence and misled the public about its own views and policies, including on natural vs. artificial immunity, school closures and disease transmission, aerosol spread, mask mandates, and vaccine effectiveness and safety, especially among the young. All of these were scientific mistakes at the time, not in hindsight. Amazingly, some of these obfuscations continue to the present day.
But perhaps more important than any individual error was how inherently flawed the overall approach of the scientific community was, and continues to be. It was flawed in a way that undermined its efficacy and resulted in thousands if not millions of preventable deaths.