The new deal exposes one of the biggest risks facing Nvidia right now.Nvidia (NVDA) has been perhaps the single biggest beneficiary of the boom in AI progress over the last three years. The company's market cap now tops $4.3 trillion, making it the most valuable company in the world. That's driven by continued demand for its market-leading graphics processing units (GPUs), which are essential for large language model training and inference.Nvidia's financials show a massive company that's still growing sale ...