Authors who launch dʹalertes ?

Artists, and writers in particular, can play an important social role in times of crisis like the one we're experiencing with COVID-19. They shed light on the past and the present, formulating hypotheses for the future. Numerous authors of both French-language literature and science fiction have contributed to thinking about civilizational upheavals such as ecological disasters and epidemics. Are science fiction authors dʹalert launchers?