Memes

I disagree; I don't think there's any clear cut line at which you go from "normal" to "dystopia"; societies are dystopian by the extent to which they fail to be utopian. Fictional larger than life examples of "dystopia" grab our attention by presenting decades or centuries of changes in the blink of an eye. Often such societies aren't even more repressive than our current ones; they just are more striking in presentation. And when they ARE more repressive it's not because someone pushed the dystopia button; it's from very long recurring events that push the slider to worse and worse positions.