New York CNN  —  Sam Altman is the chairman of a company that promises a brighter future for humankind. No, it’s not OpenAI, the artificial intelligence company he co-founded and now runs as CEO. It’s a company called Oklo, and it’s developing the kind of nuclear power technology that many tech leaders — including Altman himself — say they will need to fuel future artificial intelligence advancements. The proliferation of electricity-hungry data centers to power our digital lives – and