The notions of superpower and unipolarity are seriously questioned by heavy trends: non-fungibility and dissemination of power; complexity of transnational interactions and interdependencies. The article argues that because of these mutations, China's rise, achieving the rank of "emerging potential superpower", and the narrowing of the gape on global power resources, the United State, who still have unmatched capacity, will probably be the last superpower in a Cold war era sense. The article concludes that unipolarity is not challenged because the operating interstate dynamics, in which involved actors which are supposed to work for building a multipolar world, contribute in fact to reproducing unipolarity.