Don't you see? Yes, literally thousands of men have now broken 4:00, it's not even unusual anymore, and for some it's expected. However, back in Bannister's time, people were saying not only that breaking the four minute barrier was impossible, but indeed it was very likely a deadly pursuit. Landy, Santee, and Bannister were each trying to be the first to breach that great mental barrier of running sub 4. Is 3:59.4 a world championship time now? Heck no. But to be the first to break the barrier is something incredible. Once Bannister broke four, many people started doing it. Was it because they suddenly all had breakthroughs in their training at the same time? No, it was because Bannister, and Landy soon after, proved that it was possible, and so they were able to remove that mental barrier. Obviously, I, too, recommend The Perfect Mile.