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My job here at The Conversation consists largely of helping scholars share what they know about sometimes very niche topics. In fact, one major goal of The Conversation is to break expert knowledge out of academia and get it into – and ideally improve – the broader public discourse.

All that’s to say, expertise is a very big deal for us.

But as the years go by, being an “expert” has lost some of its shine. Trust in scientists, for instance, has declined since the pandemic. Some people think “doing your own research” is the best way to dig into a problem, not checking expert recommendations.

Micah Altman and Philip N. Cohen are social scientists who study the role of science in society. Acknowledging that there are times to be skeptical, Altman and Cohen point to the value of expert consensus. “A system based on expertise,” they write, “is the best one modern democracies have come up with to offer guidance on the various complex issues they face.” Here, Altman and Cohen walk through what makes an expert, what expert consensus means, and the difference between professional consensus and individual opinion.

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Maggie Villiger

Senior Science + Technology Editor

Training and experience are the foundation for a group of experts to provide solid guidance. Tashi-Delek/E+ via Getty Images

‘Expertise’ shouldn’t be a bad word – expert consensus guides science and society

Micah Altman, Massachusetts Institute of Technology (MIT); Philip N. Cohen, University of Maryland

Expertise comes with training, experience and accreditation. And expert consensus is the best guide modern democracies have for making decisions about complicated challenges.

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