You assess the facts and make your (informed) opinion. You defend that opinion because it's the best possible opinion, i.e. the most truthful. If the facts chan

You assess the facts and make your (informed) opinion. You defend that opinion because it's the best possible opinion, i.e. the most truthful. If the facts change, you re-assess and re-form your opinion. You are loyal to the "truth", not a belief. Or your ego. As somebody slightly on the autistic spectrum, I find it hard to understand why a lot of people don't operate like this. There is of course a difference between factual information and emotional response or differences in taste; I assume this discussion is only about empirical facts and not personal preference.