Explore the transformative potential of online education in this thought-provoking TED talk by Daphne Koller, co-founder of Coursera. Discover how top universities are making their most intriguing courses freely accessible online, not just as a public service, but as a groundbreaking research opportunity to understand human learning. Delve into the innovative features of Coursera, including peer grading, global study groups, and question-answer forums, that are revolutionizing the educational landscape. Examine compelling statistics and real-world examples that demonstrate the impact and reach of these online courses. Learn about the "Two Sigma Problem" and how active learning strategies are being implemented to enhance educational outcomes. Gain insights into how every interaction within these online platforms contributes to an unprecedented pool of data on knowledge processing, potentially reshaping our understanding of education and learning methodologies.