Game theory seems to a layman to be just a bunch of mathematical formulas. Fortunately, game theory is concerned with daily economic life issues, so it must not eat people's fireworks. In fact, this theory brings competition from chess, poker and war. The terms borrowed from adversarial and decision-making issues sound a bit mysterious, but actually have important practical significance. The most pleasurable summary of the above text? ['Game theory may seem mysterious, but it actually comes from everyday games and has important practical significance.', 'As a branch of mathematics, the fields involved in game theory are mainly issues of daily economic life.', 'Game theory appears to many laymen as a whole bunch of mathematical formulas, but it is not really esoteric.', 'Game theory can explain many realistic problems in economic society with vivid and understandable game language.']