According to Wallerstein, since their beginning in the 19th century, the social democratic, communist and national liberation movements have chosen the concept of seizing power; this is what has failed in our century and caused disappointment to the followers of these movements. He sees a link between the East European turn and the shaking of the US's world power position. He once again expounds his theory about the development of the large regions of interest (Pacific zone and United Europe). He states however, that capitalism is coming close to the end of its possibilities, and the major unsolved problems include the lagging behind by the third world which is accompanied by population explosion, the already started decline of the middle classes and a decrease in security.