META's stock price repeatedly tests the neckline level and is now beginning to decline again. This is still early, but if a larger correction occurs later and the critical support at $500 is broken, be alert to the risk of forming an Adam and Eve double top pattern. From a fundamental perspective, AI as a paradigm-shifting technology is rewriting the competitive landscape of the tech industry and poses a substantial threat to the tech giants of the past 20 years. This restructuring of power dynamics could directly impact the valuation logic and market position of these companies.