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WorldEnv is an OpenEnv environment factory powered by canvas-engineering and a General Unified World Model (GUWM). Canvas-engineering provides a type system for multimodal latent computation: typed regions on a 3D spatiotemporal grid define fields with their own frequency, loss weight, role, and semantic embedding, while a CanvasTopology defines the attention compute graph. This allows heterogeneous datasets to train a shared backbone using missing-field masking—loss is computed only where ground truth exists, enabling transfer across domains without imputation. The GUWM defines an 857-field causal ontology spanning 19 layers (physics, markets, macroeconomy, firms, individuals, events, etc.). Any subset of fields can be projected onto a canvas to instantiate an RL environment. Corporate strategy, robotics, or macroeconomic environments are simply different projections of the same world model, enabling shared representations and cross-domain transfer.

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