Cognitive dissonance is the mental discomfort of an individual caused by a collision in his mind the conflicting views and ideas. It may appear for different reasons: because of the logical inconsistencies due to cultural practices, etc. And yet it appears when you walk through our country and talked with the Russian people.
Lately it has become fashionable to say "cognitive dissonance", and the term is often used in different social networks and blogs. So let's see jokes on the subject.