That is exactly what I intended to say. Everyone thought the 4 minute mile was impossible, until it was done, and then everyone started doing it. Had Roger Ban

That is exactly what I intended to say. Everyone thought the 4 minute mile was impossible, until it was done, and then everyone started doing it. Had Roger Bannister had a cardiac arrest and evacuated on himself, people would have stopped trying for it. https://www.youtube.com/watch?v=aFH0qcmw36Q https://www.youtube.com/watch?v=aFH0qcmw36Q