The world's fastest brain, "Kyo", a supercomputer developed by the Institute of Physics and Chemistry and Fujitsu, which performs calculations that take dozens of days in just one second even if all 7 billion people on earth work together, and listen to and understand human language, popular quizzes "Watson" of IBM, the "world's strongest" artificial intelligence that defeated the national champion on the program. These two brains, born after fierce competition, have the potential to dramatically transform human society.