V. interesting hypothesis in @mattwridley piece: what if transmission has been out of control in hospitals and care homes, but pretty low elsewhere? Tragic we didn& #39;t shield better. But something close to _current_ measures could see it off http://www.rationaloptimist.com/blog/we-know-everything-and-nothing/">https://www.rationaloptimist.com/blog/we-k... More data needed

But what I don& #39;t get in @mattwridley & #39;s article is he starts by saying widespread testing is a good predictor of success in keeping death-toll low. But how does that relate to his point about hospital/care being the burning core of the epidemic? Why would we need wider TTT?