The dozen people working at CSER itself—little more than a large room in an out-of-the-way building near the university’s occupational health service—organize talks, convene scientists to discuss future developments, and publish on topics from regulation of synthetic biology to ecological tipping points. A lot of their time is spent pondering end-of-the-world scenarios and potential safeguards.

A small cadre of scientists worries that lab-made viruses, AI, or nanobots could drive humans to extinction.