the.com/generation gap

The distance between 'back in my day' and 'okay boomer.'

means The differences in values, habits, and communication styles between older and younger generations that make them baffled by each other.

from A mid-20th-century phrase, popularized in the 1960s when sociologists and journalists needed a name for the sudden, loud rift between young baby boomers and their parents over music, politics, war, and hair length. The term caught on because it was useful shorthand for something everyone could feel but hadn't yet named — and it's been recycled by every subsequent generation to explain why their elders or juniors seem to be speaking a different language.

origin
Coined widely in the 1960s youth counterculture
irony
Every generation invents it, then becomes the punchline
tech twist
Now measured in app updates, not decades
constant
Parents always think music peaked before kids were born
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