Recently, a popular event on the prediction market platform Polymarket has attracted widespread attention: the probability that "the United States will officially recognize the existence of extraterrestrial life before 2027" has climbed to 18%, and the transaction volume of related prediction contracts has exceeded 10 million US dollars. The popularity of this topic originated from a statement released by former US President Trump on Truth Social.Trump wrote: "Given the high level of public interest in this topic, I will direct the Secretary of War and other relevant departments and agencies to begin the process of identifying and disclosing government files related to extraterrestrial civilizations, extraterrestrial life, unidentified aerial phenomena (UAPs) and unidentified flying objects (UFOs), and other related information related to these highly complex and deeply interesting topics."