Elon Musk: To really be intelligent, AI has to make predictions that are in line with reality. “It's incredibly important for an AI model to be grounded in reality. I have a saying, which is physics is the law and everything else is a recommendation. I'm not suggesting people break the laws made by humans, we should generally obey the laws of humans. But I've seen many people break human made laws, but I have not seen anyone break the laws of physics. So, for any given AI, grounding it against reality and reality, for example, as you mentioned with the car, it needs to drive safely and correctly. The humanoid robot Optimus needs to perform the task that it's being asked to perform. These are things that are very helpful for ensuring that the model is truthful and accurate because it has to adhere to the laws of physics. So I think that's actually maybe somewhat overlooked or at least not talked about enough is that to really be intelligent it's got to make predictions that are in line with reality. In other words, physics.” Conversation with Satya Nadella, May 19, 2025