Theory of Mind: The False-Belief Task

This simulator renders the classic Sally-Anne false-belief task in 3D and runs a real belief-tracking algorithm underneath it: each agent's model of the world only updates when that agent actually witnesses the change, so an agent who stepped out of the room keeps an outdated — false — belief even after reality moves on. You can step through the canonical scenario, extend it to a second-order question (what one agent thinks another agent believes), introduce a distraction that breaks that second-order tracking, and sample a simulated child subject's answer from a developmental age curve modeled on the meta-analytic false-belief literature.