The problem of the dispersion between individuals, countries or cultural zones continues to be a big problem of human society. The problem has a tendency to get worse and worse. 1928 BC: Walt Disney As the evolution to symbolic models speeded up, the brain also increased the conceptualization level of the image models. The cartoons are based on such concept image models. Everybody (including childrens) easily understands them. 1938: World War 2 Both world wars starting in Europe occured in a very complex set of known and unknown factors. MDT can be used to evaluate the problem. Since Napoleon, there was a general tendency to war in Europe. MDT says that there must be a war-associated ZAM, which must be assimilated and accepted by the majority of the population. Also, the consciousness level has to be high enough to think that the war will solve all the problems, but not high enough to understand that this is not true. One example of such a ZAM could be "we have better weapons" or "we are powerful enough to win". Of course, the attacked people have a ZAM as "we must defend our country". It is possible that such action models create conditions for a war. But, such models, even if they are assimilated and accepted by the population, are not enough to start a war. There must be also a big enough number of high-ranking persons to plan such a war, and a series of technical conditions. Another factor, which is associated with the war start will be described below. The people who are in command are usually image-type persons, but symbolic-type persons make the weapons. Only symbolic-type persons are able to understand the power of such weapons, but such persons are not in command. Once a war starts, the image-type leaders lose the control of the short and long-range consequences. For instance, the leaders of the Second World War understood the weapons, based on the experience of the weapons of the First World War. In the WW1 the tanks were "exotic" weapons and planes, too. Very soon the tanks and planes changed totally the manner of evolution of a war. It was not possible to predict the destructions on such a large scale by the WW1- type persons who started WW2. This problem continues to exist even now. In some less developed parts of the world, the leaders and soldiers could be image-type persons, who are not able to understand the power of the weapons used by them. They are also not able to make such weapons. For instance, the war in Rwanda produced a huge number of victims. The different groups of population fought each other since the beginning of history and it was not a big problem. The problem occured when they obtained advanced weapons without being themselves advanced enough to understand their power. 1948: The Cold War