In this discussion, Jackson Shuttleworth, Group Product Manager at Duolingo, reveals the secrets behind the game-changing Streaks feature that has propelled Duolingo to over 600 million users. He shares the evolution of Streaks and insights gained from 600 experiments, shedding light on user motivation and engagement. Jackson highlights the delicate balance between flexibility and user commitment, the psychological impact of Streaks, and strategies for effective product management. His wisdom on high-velocity teams and user retention tips are invaluable for aspiring product managers.