Explore the fascinating world of infant cognition in this 19-minute TED talk by psychologist Alison Gopnik. Discover how babies and young children function as the "R&D division of the human species" through sophisticated intelligence-gathering and decision-making during play. Delve into topics such as understanding other minds, the relationship between longer childhood and bigger brains in smarter animals, and the concept of "Bayesian babies." Learn about intriguing experiments like the Blicket Detector and preschool statistics, and gain insights into how children use explanation and exploration to understand the world around them.