You know what legit drives me up the wall? When you're having a discussion--for example, one involving where being a millennial begins and ends--and you know the answer. Then when you explain out of embarrassment (when you're told you're smart) that you looked it up out of curiosity, the one other person in the conversation basically undermines your intelligence by saying, "Oh, but you had to look it up."
Um, correct me if I'm wrong, but isn't that how everyone gains the vast majority of their knowledge? By researching the things in which they're curious about, in which they could have no other means of obtaining said knowledge otherwise? I mean, seriously eff off with that ****; until I said it, you didn't have the ****ing answer, did you? Did you bother to look it up, to investigate it on your own? No. So where the hell do you get off trying to make me feel small, just because I actually sought out the information, rather than believing myself all-knowing "just because I've been alive sixty plus decades"? You're not a credit to your age group; for all the older folk's talk of "the younger generation thinking they know everything", I see an awful lot of older people thinking they don't have anything left to learn, just because they're older.
"Pot, kettle, black" much?