Last November, OpenAI investor Brad Gerstner pressed Sam Altman on a podcast about how a company with $13 billion in revenue could commit to $1.4 trillion in spending. Altman bristled. "If you want to sell your shares, I'll find you a buyer," he said. "Enough." Three months later, OpenAI is aiming to raise $100 billion in its latest funding round — a sign that, even amid mounting questions, Altman can find buyers. Amazon, SoftBank, and Nvidia are all reportedly considering investments that