A cognitive bias is a systematic error in thinking that affects the decisions and judgments that people make. Some of these biases are related to memory. The way you remember an event may be biased for a number of reasons and that in turn can lead to biased thinking and decision-making.

Why is a strong national identity a cognitive bias?

> Just think about americans calling the french "dirty frogs" and how is that any different from racism?

It's different in that it is possible for a cultural stereotype to be observed to be true, whereas it has not, at least to my knowledge, been observed that individuals of an ethnic race will tend to behave in a particular way outside of a cultural influence. Culture and race are distinctly different.

If I desire to paint my house but not my neighbors, or have my tax dollars spent in my country rather than another country, am I guilty of unfairly prejudiced thinking?

So is rejection of tribalism, so that doesn't really say anything.