Nike's Breaking2 documentary follows the groundbreaking attempt to break the two-hour marathon barrier. In this episode, Drs. Drew Brannon and Cory Shaffer explore three powerful lessons from the project: how mental "software" becomes essential as physical "hardware" peaks, how the theory of marginal gains drives sustained progress, and why redefining success on your own terms can lead to deeper fulfillment, even when the goal isn't reached.