As a tangent, one way to get much more accurate data in a much quicker way is to accept human challenge trials. We don’t even know the answer to whether delta

As a tangent, one way to get much more accurate data in a much quicker way is to accept human challenge trials. We don’t even know the answer to whether delta is vaccine resistant. With challenge trials it would be dead simple. Take 10,000 vaccinated volunteers, randomize into a delta and alpha groups. Spray them in the face with Covid. Compare rates one week later. Question answered immediately with statistical certainty. Right now, we’re trying to answer questions like this using nothing other than extremely messy observational data that’s subject to all sorts of uncontrollable confounding variables.