Why do people think they're right when they aren't?

People often believe they are right due to cognitive biases, such as the Dunning-Kruger effect, where individuals with less knowledge overestimate their competence. Confirmation bias also plays a role, as people tend to seek out information that supports their beliefs while ignoring contradictory evidence. Additionally, emotional investment in a viewpoint can cloud judgment, making it difficult to accept alternative perspectives. This combination of psychological factors leads to a strong conviction in their correctness, even when they are not.