Thanks for the reply. I appreciate your comments.Lots of fair comment in there.
However, let's go back to where this little sub-debate started. I responded to a suggestion that some people were peddling the idea that we had done marvellously. My comment was "I think by most judgements we have not done well." If we cannot yet conclude that we have done badly, then by the same token we cannot conclude that we have done well either.
My personal view remains that thinking that herd immunity in any form can be any kind of solution and that it should in any way drive our thinking and strategy, is completely bonkers. It makes no sense on many, many levels. Perhaps the first and most profound is that we really have no agreement the levels of immunity which those previously infected might have. That pulls the rug out from under the strategy, right from the start. Potentially we allow millions of additional, preventable infections and the corresponding thousands or tens of thousands of additional, preventable deaths... for no benefit whatsoever.
And even if we do have a degree of immunity after infection, is it conclusive that we have roughly 5x the levels of infection across the UK compared to Germany and that as a nation as a whole, we are now more immune than they are? (We have 4x the numbers of dead, in a population only 80% of their size). Because if we do not, then our approach - vs theirs - has failed. I do not know the answer to that and I am not sure anyone really does yet.
EDIT: And sorry I forgot your opening line, "It depends what the advantage is". The advantage we had was that we could see how things were unfolding in Italy and had time to take actions to prevent the same from unfolding here.
Yes I think there is a question mark about whether immune response fades over time. That could change everything.