Ross says that since you believe you are in the really-real, true reality, you also believe that you have been extremely careful and devoted to sticking to the facts and thus are free from bias and impervious to persuasion. Anyone else who has read the things you have read or seen the things you have seen will naturally see things your way, given that they’ve pondered the matter as thoughtfully as you have. Therefore, you assume, anyone who disagrees with your political opinions probably just doesn’t have all the facts yet. If they had, they’d already be seeing the world like you do. This is why you continue to ineffectually copy and paste links from all our most trusted sources when arguing your points with those who seem misguided, crazy, uninformed, and just plain wrong. The problem is, this is exactly what the other side thinks will work on you.