Because that is the only way to know anything. Someone can tell me 1000 stories about why they are a good guy and I can feel something different and know better. This is how I know core has been corrupted and Luke has pure intentions. It's totally cool that you disagree. But we aren't talking about hard facts. We are taking perception which is how we build our knowledge base of what we call facts. What is the fact that I need to know, in your opinion?