Nathan's podcast, The Cognitive Revolution ... The enduring enigmas of AI ... Conceptualizing how LLMs conceptualize ... Do AIs actually understand things? ... Why AI doesn’t need to be superhuman to be revolutionary ... Human vs AI representations of the world ... Thinking through high-dimensional AI brain space ... Nathan on AI risk: Doomer? Accelerationist? Both? ... The open source question and Cold War II ... Do LLMs “naturally” learn human values? ... Mamba: a new approach to building large language models ...