Explore the development of behavior in infants through this insightful lecture by Karen Adolph from New York University. Delve into how everyday activities provide infants with extensive, varied practice for foundational behaviors, leading to increased flexibility and adaptability. Examine the self-motivated and spontaneous nature of infant practice, and discover how formal models suggest this natural regimen optimally prepares infants for a changing body and world. Consider the potential impact of open video sharing on advancing behavioral development research and enhancing scientific transparency. Gain valuable insights into topics such as flexible behavior, variable practice, the motivations behind infant movement and walking, and the concept of a "data brewery" in developmental research.