Baby Boomers and the 9/11 Generation

[MaxL]

In the Weekly Standard William Kristol describes the Baby Boomers (generally accepted in the U.S. as those born between 1946 and 1964) (snip).

I'm not sure how you can speak meaningfully about such a vast and divergent bunch of people. What does a man who was 18 in '64 have in common with a man who was born that year? When the latter was 18, the former was 36.

It seems to me that arbitrarily dividing people into groups (let's call them generations) on the basis of age, and then trying to analyze what those groups have accomplished is not going to be a productive exercise.