We live in turbulent times. Concerns about polarization and popular discontent are commonplace. So for many reasons, this seems a better time than ever to ask the question: what do we really know about such mass movements and societal sea-changes? Tom Postmes provides four key insights from his research over the last 7 years, which he conducted in close collaboration with various Dutch Ministries.
Science is in crisis, and there are many initiatives for how to improve it. The solutions that are proposed risk being counterproductive. They overemphasize the importance of good data and rigorous hypothesis testing, and devalue other factors in the advancement of knowledge.