A key attempt at disparaging my writing during the C19 pandemic was that I wasn’t an immunologist, and that I couldn’t possible understand how the immune system works. My response typically explained that we were utilising a theory of immunity, and that none of us really knows for sure how the immune system(s) work.

Have we really been able to study C19? Priors may be true. They may indeed reflect the reality, but without effective judgement against all available data, or if priors are held as defined and facts that are unchallengeable, beliefs may be given unsubstantiated credibility.