Reply To: Reality Check on Covid treatment.

we do know some things now. So, look at early predictions and how they compare with later knowledge to estimate magnitude of errors and biases. For example, we had phase 3 results for vaccines and later much bigger observational studies. So, you can compare phase 3 results with observations under same conditions (original Wuhan and right after vaccine) – those were pretty on target both in safety and efficiency. and then, there are changes in conditions – Delta and 6 months later.