Believe it or not, this is huge. North Korea is a country that prides itself on its collectivistic culture. Americans and other western countries think differently: our cultures are individualistic. North Koreans, on the other hand, think as a group. They consider that their strength. “The Mass Games,” which is sort of like the Olympics and a Broadway show mixed together, is an expression of this group mentality where something like 100,000 participants, gymnasts, dancers, athletes and students, put on this big show for the country’s leader and for the people. They practice and practice until they are moving as one …