Oh my word this posting is late! When I began writing and posting this blog, years ago, I promised subscribers that they would not get more than one notification a month. I made an exception to this during the first year of Covid-19. Things were so confused that I tried to make sense of the news and share my understanding. I posted regular blogs on Covid, the science, public health and its causes and consequences. It was amazing to see how rapidly the readership increased. Thank you to everyone who responded and supported this. It was nice to know it was appreciated. I stopped the Covid blogs as the public information improved, but in addition the situation increased in complexity, and I knew I no longer had a comparative advantage.

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