It's completely arbitrary, especially towards the edges of the time period. A boomer born 1946 had a wildly different life than a boomer born 1964, and a boomer born in 1964 has way more in common with a Gen Xer born in 1965.
Age cohorts are real, but "generations" are just arbitrary groupings.
Nationalities at least have a basis in actually existing nations. There's literally no basis for generations.
Age cohorts exist. People born the same year have stuff in common. Generations aren't like that, they're just arbitrarily defined over arbitrary time spans.
It's completely arbitrary, especially towards the edges of the time period. A boomer born 1946 had a wildly different life than a boomer born 1964, and a boomer born in 1964 has way more in common with a Gen Xer born in 1965.
Age cohorts are real, but "generations" are just arbitrary groupings.
Nationalities at least have a basis in actually existing nations. There's literally no basis for generations.
Age cohorts exist. People born the same year have stuff in common. Generations aren't like that, they're just arbitrarily defined over arbitrary time spans.