Do you know what the advice was that SAGE provided to Johnson? And do you know what Vallance personally thought of that advice? SAGE is made up of a number of individuals. Maybe Vallance was going along with a sense of collective responsibility, and thought it desirable for everyone to keep the message clear by not contradicting one another. But, anyway, even if Vallance did change his advice about herd immunity, you've provided one example of a change in objective that was made very, very early in the pandemic. In March things were obviously in flux. New insights and facts were becoming apparent by the day. To suggest that that change at that time constitutes yo-yo advice by Vallance isn't reasonable, at least not to my way of thinking.Originally Posted by Muddy Retriever
“When the facts change, I change my mind. What do you do, sir?” John Maynard Keynes.
