In recent political debates there has been a significant change in the valence of the word "experts" from a superlative to a near pejorative, typically accompanied by a recitation of experts' many failures and misdeeds. In topics as varied as Brexit, climate change, and vaccinations there is a palpable mistrust of experts and a tendency to dismiss their advice. Are we witnessing, therefore, the "death of expertise," or is the handwringing about an...