In the 2021 book “How to Talk to a Science Denier: Conversations with Flat Earthers, Climate Deniers, and Others Who Defy Reason”, Lee McIntyre introduces different anti-science movements and their reasoning. Based on personal interactions with committed science deniers and literature from various disciplines including cognitive psychology, he argues that all these communities use the same playbook in terms of reasoning about evidence, argumentation, demands on scientific certainty and recruitment of new members. Such observations allow McIntyre to propose a universal strategy to combat these beliefs by using respectful in-person engagement and effective science communication tools. His argument is rooted in the idea that anti-science beliefs are built on identities, not on the content of specific beliefs.