If someone strongly claims they know something and I later find out that they were wrong, I simply can't trust that person ever again. I'm glad you're a critic

If someone strongly claims they know something and I later find out that they were wrong, I simply can't trust that person ever again. I'm glad you're a critical enough thinker to do that (although it's unfortunate that you don't account for honest conviction or that person obtaining further understanding such that they change their position; after all, not all strong claims revealed to be wrong are meant to deceive). Not everyone is that kind of critical thinker, especially up against a savvy, dishonest debater/character/charlatan. Some people just keep shouting "I know the answer" or "Believe me!" to every question or issue and they end up with a following.