Correct me if I'm wrong, but haven't generational limits shortened in the past hundred years?

I think in terms of family trees and genetics, a new generation emerges about every thirty years, not every ten.

But maybe it's like fashion where the change is always accelerating.

I am quite aware that one definition of generation X is to be born between specific calendar years. Another is determined by parentage (I was borne from boomers, which according to some makes me a member generation X, like my older sisters.)

Gen-Xers that I know had to work very hard to fight the negative connotations of their generation. That's why - I've been told by people who study such things - they think you have to always be self-sacrificing to get ahead.