It's tricky business to define Sam Altman's "day job." He's got the basic task of overseeing OpenAI's executives and staff , as any CEO does. Work doesn't stay at the office, though. Altman has become the public face of the AI boom, responsible for selling a technology that's upending workforces, capturing markets, and costing billions of dollars to build. That's often a high-wire act, and especially so this week — he also had to sell himself. I watched Altman's testimony on Tuesday in the