Comment by Reebz

being reductive, causality is the key term for a world model. the rollout is the key action to demonstrate causality. lots of nice LLMs can generate a 3d representation of a "visual world". These days the focus is on sensory data (image, video, etc.), however world models can be more than just 3d spatial representations - they could be tabular. Again being reductive, its how do you predict the next state from the current state (the rollout).