Long ago, Randall Munroe flipped the script on making fun of people who don't know things. For every trend, fact, or meme, everyone in the know heard about it for the first time at one point. That classic comic may be his best known of them all. In this comic, we find out how he came to think that way. The moral of the story is, instead of being mean to people who are hearing about something for the first time, take joy in bringing them up to speed. This comic is from xkcd.