ELI5: Explain Like I'm 5

Truth theory

Truth theory is like a game where we try to figure out whether something is true or not. Imagine you have a friend who tells you that they ate a cookie. How do you know if they are telling the truth? You might ask them questions like "What kind of cookie was it?" or "Where did you get the cookie from?" to help you decide if they are telling the truth.

In truth theory, people have different ideas about what makes something true or false. Some people think that something is true if it matches up with what they see or experience. For example, if you look outside and it is raining, then it is true that it is raining. Other people think that something is true if it can be proven using facts and evidence. They might say that it is true that the Earth revolves around the sun because scientists have gathered a lot of evidence to support that claim.

Sometimes people might disagree about what is true, especially if they have different beliefs or values. For example, some people might believe that wearing a mask can help protect you and others from getting sick, while others might believe that masks are unnecessary or even harmful. These disagreements can make it difficult to figure out what is really true.

Overall, truth theory is all about trying to figure out what is true and what is not, and sometimes that can be a tricky and challenging game to play.