A former senior banking analyst has flagged a potential financial crisis scenario worth monitoring. The warning centers on how major geopolitical announcements—like official confirmation of extraterrestrial life—could trigger severe market instability. According to the analysis, such a shock might cascade into widespread panic selling, potentially destabilizing banking systems. Financial institutions, particularly central banks like the Bank of England, need contingency frameworks ready. Market confidence rests on predictability; unexpected black swan events can shatter that foundation fast. While speculative, this scenario underscores how interconnected modern finance is—a single catalyst can ripple across multiple asset classes and institutional balance sheets.