Clueless

The Clueless Manifesto Revealed:

"You probably all know the story of Roger Bannister--prior to 1954, experts believed that running a mile in less than four minutes was beyond human capability. People assumed it was an insurmountable human limitation--not possible. Some believed that even if you could, your heart would explode. But in 1954, Bannister broke the four-minute-impossible-barrier and clicked in at 3:59.4.

That was cool, but the remarkable thing is what happened immediately after that. Just over a month later someone else did it, and then before too long a ton of people were doing the 'impossible' sub-four-minute mile. The real barrier was psychological."