This animated video is part of a project of collaboration with the Philosophy Museum in Milan and a contribution to their exhibition on Conspiracy Theories, Fake News and Misinformation (February 2024). The aim of the video is to introduce the public to recent philosophical and psychological research on how conspiracy theories arise and spread. Projects: "Conspiratorial Ideation and Pathological Belief", led by Ema Sullivan-Bissett and Anna Ichino (https://www.emasullivan-bissett.com/conspiratorial-ideation-and-pathological-belief.html) and funded by the British Academy; "A Birmingham Philosophy Museum: The First Steps", led by Lisa Bortolotti and funded by an AHRC Impact Acceleration Awards.