Simulation works for a trainee pilot because the pilot knows what the simulator is for; a model trained across domains has no such goal.

Added to korrents 7 Sept 2026 · How quotes work · Something wrong? Tell us

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• The goal was never good simulation; it was answering counterfactuals, and a value function does that job as well as a simulator does. SLSergey Levine12 Sept 2025
• If we live in a simulation, whoever is running it does not know how it ends, because nobody runs a simulation whose outcome they already know. EMElon Musk9 Nov 2023
• RL environments exist to make a model generalise, not to teach it each skill one at a time — exactly as pre-training does. DADario Amodei13 Feb 2026
• Building a realistic simulator is exactly as hard as building the agent, because the simulator is itself a large AI model. DDDmitri Dolgov3 Aug 2026
• Reinforcement learning only works once a model already knows something, which is why robots must be pre-trained by imitation first. SLSergey Levine12 Sept 2025

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