**Acknowledgements**

The author addresses his sincere thanks to Anna Serra-Llobet, John Radke, and Matthias Kondolf (working at Berkeley), with whom he worked, and for the meeting organized the 6 February 2020 in Berkeley, with crisis managers and scientists, just before the international pandemic crisis. He also thanks Daniel Delahaye (University of Caen, France) and Patrice Langlois who create the RuiCells© model. He also thanks the institutions who financially supported this research: the France Berkeley Fund, for funds obtained in 2019; Avignon University, for support in 2022; and the Institut Universitaire de France (IUF), for grants over the period 2021−2026.
