Alphabet (GOOG, GOOGL) has announced a proposed $80 billion equity capital raise to fund AI infrastructure, which includes a $10 billion private placement from Berkshire Hathaway at prices near $350 per share. This shift toward at-the-market (ATM) offerings to fund capex is viewed as a bullish signal for AI beneficiaries, potentially setting a precedent for other "Mag 7" companies like META, AMZN, and MSFT. The author suggests this move warrants a portfolio rotation out of non-AI assets to double down on companies meeting unprecedented AI demand.