 We know and use fewer words than we used to. We're less able to convey our thoughts and emotions through language. And this is at least partly, it seems to me, because we use little cartoons as linguistic crutches. We're devolving all the way back to caveman days as emojis are essentially just high-tech cave paintings. The written language of primitive man used to consist of pictures scrawled on the wall of a cave. Now our written language consists of pretty much the same thing, though the medium has changed.