In the span of five years, a single rocket booster has quietly rewritten what human beings expect from a reusable machine. SpaceX's Falcon 9 first stage B1067, born in 2021 to serve a modest ten-flight ambition, has now launched and landed 36 times — approaching the storied mission count of the Space Shuttle Discovery, though in a fraction of the time and under a fundamentally different relationship with gravity and atmosphere. The story it tells is less about a rocket and more about what becomes possible when engineering goals are treated as floors rather than ceilings.