Meaningful discussions around the concept of the production and utility of scientific knowledge, interdisciplinary knowledge, and the limitations of expertise.
When the phenomena of multiple scientific fields interact, such as when it is necessary to trade off the health costs of a virus against the economic and other costs of a lockdown, policymakers can turn to experts about isolated phenomena. But there are no experts about the interaction of different kinds of phenomena or about the proper weighting of some against others. Policymakers can ask epidemiologists to weigh in on epidemiology, infectious disease specialists to weigh in on infectious disease, and economists to weigh in on economics. But there are no experts about how these subjects interact or how to balance them.