https://ashimsharma10.github.io/blog Software engineer sharing projects, notes, and guides on ML infrastructure. en-us sharmaashim00@gmail.com (Ashim Sharma) sharmaashim00@gmail.com (Ashim Sharma) Mon, 07 Sep 2026 00:00:00 GMT https://ashimsharma10.github.io/blog/world-models https://ashimsharma10.github.io/blog/world-models A world model is a learned simulator. Give it a state and an action and it predicts what happens next. This write-up follows the idea from Ha and Schmidhuber's V+M+C agent through Dreamer, MuZero and TD-MPC, to Genie, Cosmos and V-JEPA, the drift that comes with imagining too far ahead, LeCun's case for predicting representations instead of pixels, and why robots need all of this. Mon, 07 Sep 2026 00:00:00 GMT sharmaashim00@gmail.com (Ashim Sharma) world-modelsreinforcement-learningroboticsphysical-aijepamodel-based-rl