My Uncle Thinks He’s a Giraffe
Well, actually, he doesn’t (at least I don’t think so), but if he did, there’s no way I could tell you about it without using the kind of language that only humans have. If you doubt this, just give it a try. Try to ‘tell’ someone (without using any language--either spoken or signed) that your uncle thinks he’s a giraffe. Let's see, how could you do this?