Alphabet, Google's parent company, is on the brink of a $4 trillion valuation, reaching about $3.82 trillion this week with shares at $315.9, a rise of over 70% this year. The surge arises from strong investor confidence and advances in AI technology, particularly the Gemini 3 model. This resurgence in performance, along with a robust cloud business and avoidance of antitrust penalties, positions Alphabet for continued growth, despite market concerns reminiscent of the dot-com era.