The pandemic is not quite over, but we are getting used to its inconveniences. What disaster will be next? An antibiotic-resistant strain of the bubonic plague? Climate collapse? Coronal mass ejection? Will the next catastrophe be natural — perhaps a massive volcanic eruption, the likes of which we have not seen for more than two centuries, since Tambora in 1815? Or will it be a man-made calamity — nuclear war or a cyberattack? And might we inadvertently descend into a new form of AI-enabled totalitarianism in our efforts to ward off such calamities?

To all these potential disasters it is...