I'm an original Elvis fan. I know what the Haight/Ashbury is. The movie "1984" was about the distant future. My kids grew up in the 70's and came of age in 1986, 1987 and - whoop, 1994! All well-into the "future"!
I could give you more hints... like how many inventions that you take for granted every day, were all brand new in my lifetime. Ok, here goes: Television, washers AND dryers, microwaves, electric typewriters, photocopy machines, cars with automatic shift. Oh, and when we went to the DMV to take a driver's license exam, it was on paper... no computer screens back then.
Enough about the stone age. How old do you think I am? If you can't figure it out and don't know what most of this stuff is about, you are probably a millenial... and, I have no idea what that means!