While at work today, I overheard two older ladies (probably early to mid-70s) discussing a book they saw on a display.
Woman #1: The Bell Jar! I read that book a hundred years ago!
Woman #2: Well, we're not that old.
Woman #1: No, but I read it ages and ages ago. How old is it anyway?
[Sound of pages being turned as she searches for the copyright date]
Woman #2: It's probably the 1960s.
Woman #1: Oh, at least. Here it is -- 1971.
Woman #2: That's pretty old.
Woman #1: Yes. What is that, 25 years ago?
Woman #2: Yes, at least.
Yes, at least.