Field Note · World Models

The four learning paradigms behind a world model

23 June 2026 · Risto Anton Päärni · Helsinki, Finland

Companion to the three-piece loop. A world model for control rooms is not one model. It is four learning paradigms, each doing a different job.

Generative models build the simulator. Reward learning refines it. Reinforcement learning deploys an agent into it. Self-supervised learning compresses the raw signal so the other three can work.

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