The nuclear start-up's share price has gone through the roof, and early investors should be thrilled.Nuclear is the hottest sector of the energy market right now, and perhaps no nuclear company is hotter than Oklo (OKLO +4.96%). The start-up is trying to develop small modular reactors (SMRs) to power an anticipated construction boom of new artificial intelligence (AI) data centers.Demand for electricity is surging in the U.S., partially driven by the massive energy needs of AI. A lot of that electricity pow ...