"In the last 350-odd years, the international "scientific community" has come to be the bastion of consensus and concerted action, especially in the face of two global crises: disastrous climate change, and a deadly pandemic. How did "the scientific community" come into existence, and why does it work? Rivals is an attempt to answer these questions in the form of a brief historical overview, from the late seventeenth to the early twenty-first centuries,...