911 is a Generational marker point that for those of us alive now and probably for another generation or two will have only one meaning. nine-one-one is one thing but nine-eleven for us will always be the day that the towers went down. For my parent's generation and even into mine, it was December 7th. To them and my generation, December 7th was the day we went to war when Japan hit Pearl Harbor. In between was the assassination of JFK. Days that everyone remembers in detail and also remembers what they were doing and where they were.