Full context:   The scale theorized by Kardashev was born in the geopolitical context of the Cold War, in which energy had supreme value. According to Guillermo A. Lemarchand, a physicist at the University of Buenos Aires, there are four arguments against Kardashev's classification: For the British meteorologist Lewis Fry Richardson, author of a statistical study on mortality (published in Statistics of Deadly Quarrels, 1960), man's aggressiveness does not allow us to predict a life span that will allow humanity to reach more evolved stages. He estimates that man's violent impulses will destroy the social order over a period of 1000 years. Moreover, mankind will probably be destroyed with weapons of mass destruction within a few centuries at the most.