ELI5: Explain Like I'm 5

Self-referential paradoxes

Have you ever heard of a paradox? It's when something seems impossible or doesn't make sense. A self-referential paradox is a type of paradox where a sentence or statement refers to itself in a way that makes it seem impossible or contradictory.

Let's say you have a special sticker that says "this sticker is a lie." Sounds confusing, right? If the sticker is a lie, that means it's not true, but the sticker itself says it's a lie, which means it is true. So is the sticker telling the truth or lying? It seems like it can't be either one, which is why it's a paradox.

Another example is the sentence "I always lie." If the person who says this is telling the truth, then they always lie, which means the sentence itself is a lie. But if the sentence is a lie, then the person who said it isn't always lying. Confused yet?

Self-referential paradoxes can be tricky, but they are fascinating to think about. They make us question the nature of truth and language, and show that sometimes things aren't always as straightforward as they seem.