So, once again the Little Goons are attempting to redefine reality to suit their desires. Par.
As usual, the primitives don't know excresence about a damned thing.
Statisticians usually define the "baby boom" generation as those born 1946-1964.
It's true that those born in the 1960s don't have much in common with those born in the 1940s, but they're lumped together, and so there one has it.
"Generation X" is defined as those born 1964-1980, although some statisticians DO expand it to 1961-1980; not many, however.
"Generation Y" is defined as those born since 1980.
It doesn't follow a set number of years; it follows trends in people having families. A family in the 1940s was likely to have children into the early 1960s, but not beyond that. (Maybe some, but not statistically important.) Many of those born as late as 1964--not all, but many--were born of parents who started families in the late 1940s, early 1950s.
Baby Boom = 1946-1964.
And there's not a damned thing the primitives can do about it.