CNBC Daily Open: When AI hype hits gravity

NVIDIA CEO Jensen Huang speaks during the Live Keynote Pregame during the Nvidia GTC (GPU Technology Conference) in Washington, DC, on Oct. 28, 2025.The euphoria around artificial intelligence is colliding with the limits of reality, and cracks are emerging.Last night, tech giants like AMD smashed expectations on AI chip demand, and Palantir reported another quarter of strong growth. Yet the Nasdaq fell, revealing Wall Street's playlist is stuck on one track: AI mania.Palantir — the poster child of that obs ...