This article was co-authored with Laurence Barry, and initially written in French during the 2020 Summer. The early days of the SARS-CoV-2 (or COVID-19) pandemic have seen a proliferation of calls for “individual responsibility”, starting with strong calls (and even an obligation in some countries, including France) to stay home as much as possible in the early spring of 2020, before it became mandatory to wear a mask in public (often closed) places during the summer. To paraphrase Coluche « dire qu’il suffirait que … <a href=“https://freakonometrics.hypotheses.org/63711" …