Anyone with half a brain knew that that was Cummings Enda.Dynamite story in Sunday Times today. Says Dominic Cummings is behind the herd immunity policy.
This was because, like intangible and unprovable concepts like Fukuyamas end of history schtick, it has the Cummings trademark of just enough obscurity to deter the casual enquirer from going further, enough force to be declared as the solution down at Wetherspoons, and doesn't cost money.
It was taken as read that it was the work of the Gollum from early on in this thread, and once again your remarkable revelation fails to leave us awestruck.
Closer reading of what people had to say about 'Herd Immunity' in relation to Cummings in this parish would have better prepared you for this earth shattering revelation.