Richard Ngo — Notable For: AI governance researcher; formerly at OpenAI and DeepMind; influential writer on AI alignment and x-risk

NoteThe source directly confirms all key elements of the claim: (1) Richard Ngo worked at DeepMind (earliest work mentioned), (2) he worked at OpenAI (subsequent work mentioned), (3) his focus includes AI governance (explicitly stated), (4) his work addresses existential threat models and long-term future of humanity (which aligns with x-risk and AI alignment concerns). The source is Richard Ngo's own 'About' page, making it a primary source for his professional background and research focus. While the source doesn't use the exact phrase 'influential writer on AI alignment and x-risk,' it confirms the substantive elements of his expertise and career trajectory that support this characterization.