Simon Cullen is a faculty member, Dean's Innovation Scholar, and Artificial Intelligence and Education Fellow at Carnegie Mellon University. He developed the award-winning Dangerous Ideas in Science and Society course, helping students to explore diverse viewpoints on polarizing topics by teaching them the art of constructive disagreement. His research combines philosophy, cognitive science, and educational technology to improve reasoning, communication, and understanding across moral and political divides. His work has been published in Science Advances, Nature Science of Learning, Cognition, and the Review of Philosophy and Psychology. He holds a Ph.D. from Princeton University and has a background in the psychology of reasoning, reasoning pedagogy, and philosophy of cognitive science.