I am not an idiot. I may occasionally be ill informed resulting in sub optimal decisions or advice. Which is kind of the point of the question. How do you evaluate information? Do you trust Big Media? Do you trust grainy videos from the war zones? So you trust the declaration of the leaders at war?
I don't think there's a clear cut answer to any of these questions. Your truth will be a mix of your prejudices and the incoming information.
I am also an idiot.