Couldn't Care Less

Mr. Carty made a video about the grammatical error that most of us make when we say "could care less." The correct way to use this expression is "couldn't care less." The difference being that "could care less" means that you do care in some way or another and that you could care less about it. "Couldn't care less" says that you don't care about something at all and really couldn't care less about it because you don't care about it in the first place. I must say, I fall victim to those who say "could care less." I guess I am proving Nick Mamatas right when he calls me illiterate.