Truth in lies

Ok so I know this is a weird and random thing to ask here. But I don’t have anywhere to post this and this is the closest place to making any sense posting this crazy thought. What if the entire world was magically cursed to always lie? If everyone knows that everyone can only lie they would make it a language. Say the opposite of what you mean. So wouldn’t that mean it’s the truth? And anyone growing up in that world would think the lie language is just normal language so it wouldn’t be a lie for them. So would the curse make them tell the truth? I know this really doesn’t fit here but it doesn’t fit anywhere and I assume you guys appreciate a weird question more than other aminos would.