The effectiveness of cloth masks has been misrepresented by #Masks4All

I recently advised caution about COVID-19 research performed by people without a background in infectious diseases. Some people hated that advice. I’m going to show an example of why it matters. In recent weeks, entrepreneur Jeremy Howard has led the #Masks4All campaign to make it mandatory to wear cotton face masks in public. Howard claimsContinue reading “The effectiveness of cloth masks has been misrepresented by #Masks4All”

All models are wrong, but some are completely wrong

At this critical time in the modern history of the human race, mathematical models have been pushed into the foreground. Epidemic forecasting informs policy and even individual decision-making. Sadly, scientists and journalists have completely failed to communicate how these models work. Last week the Financial Times published the headline ‘Coronavirus may have infected half ofContinue reading “All models are wrong, but some are completely wrong”