The bounded rationality hypothesis and the argumentative reasoning hypothesis provide competing explanations for why humans reason. Match the explanation of these cognitive biases to how each theory of reasoning could explain it.
The false consensus effect occurs because most people are statistically average. Unless we have statistics on what people actually believe, we can assume that our choices, thoughts, and beliefs are also statistically average.
The fundamental attribution error occurs because we do not have information about other people's situational factors to give everyone the same benefit of the doubt that we give ourselves.
The false consensus effect occurs because we believe that we are justified in our preferences, beliefs, and opinions. Because our valid beliefs and opinions are valid, we can assume that other people have also arrived at the same beliefs and opinions.
The backfire effect occurs because we want to believe that we were justified in our earlier opinions. If we change our opinions, it would make our past self look foolish or uninformed.