The particular background was the race in May in which the Athletic Association competed against the university.  So, there was an event.  You cannot break world records unless it is an established event and you have three timekeepers and the whole thing is organized. The real problem was that May is a very early time in the year and the weather is usually bad. You cannot run a fast mile race if there is a strong wind because the wind, although it may be behind you part of the time, it makes your running uneven. The only way that you can achieve a four-minute mile is to run it as evenly-paced as possible, so that your energy expenditure is spread out, and you mix your aerobic and anaerobic energy supplies in an appropriate and efficient way. So the opportunity was there.  The question was, was the weather, which was very bad, and it had been raining, it was very windy, such that it was impossible to do it.  To try to do something when external circumstances make it impossible would: (a) have made me feel that it was a more difficult task; maybe there is a barrier about four minutes. My colleagues, Chris Chataway and Chris Brasher, who had agreed were running on my side in the race against the university, had agreed to set a reasonable pace.  Would I be able to get them to cooperate on some future occasion?  Or, might John Landy, who had then gone to Finland to be given the perfect opportunities in pacing, would he do it first? So, about 20 minutes before the race, the weather seemed to improve.  I said, “Let’s do it.”  So there we are.  That was the setting.