USA - Competition for superiority in Artificial Intelligence at national level will “most likely” cause World War Three, billionaire entrepreneur Elon Musk has said, warning that an AI may deem first use its best chance of winning. “China, Russia, soon all countries with strong computer science. Competition for AI superiority at national level most likely cause of WW3,” Musk tweeted. It will likely not even be the countries' leaders that start the war, Musk elaborated, but “one of the AI's, if it [AI] decides that a pre-emptive strike is most probable path to victory.” Musk’s comments come days after Russian President Vladimir Putin stated that “the future belongs to artificial intelligence” and whoever masters it first will rule the world.