By Sheila Jasanoff
Repeatedly over the past few months I’ve heard anguished cries from former students and junior colleagues asking how I might make sense of the strange time we’re in—a time in which so much we’ve valued about the making of robust public knowledge and critical understanding has been tossed overboard as if of no consequence to the conduct of the nation’s politics. How should we, as teachers of future citizens, respond to these calls, and what special obligation do we have as scholars of science and technology, with a professional commitment to understanding the role of facts and truth in society?
The “post-truth,” “alt-fact,” “fake news” era has drawn understandable outrage from thoughtful people. Some, especially in the mainstream media, assume that the line between truth and lies is clear-cut, and can be ascertained through careful fact-checking, as in a recent New York Times editorial on the real costs of the Trump administration’s immigration enforcement policy. Others, more historically minded and attuned to technological change, have called attention to social media and the ease of propagating claims that have not passed through the costly, messy processes of peer review or validation through experiment.[1] Still others have noted the rise of data as a substitute for tested facts, and how politicians’ reliance on mass measures of electoral sentiment may undermine the cultural habits of deliberation on real-world problems. All these are important arguments, with serious implications for public reason, but none have touched on the role of professors in this period of eroding confidence in the very meaning of evidence, facts, and truth. Yet, if ever there was a time to heed the Delphic mandate “know thyself,” surely for us in the academic business now is that time.