Others have provided explanations for things like object persistence, for example keeping a memory of the rendering outside of the frame. The comment from the

Others have provided explanations for things like object persistence, for example keeping a memory of the rendering outside of the frame. The comment from the expert is definitely interesting and compelling, but clearly still speculation based on the following comment. > I won't be surprised if Sora is trained on lots of synthetic data using Unreal Engine 5. It has to be! I like the speculation though, the comments provide some convincing explanations for how this might work. For example, the idea that it is trained using synthetic 3-dimensional data from something like UE5 seems like a brilliant idea. I love it. Also in his example video the physics look very wrong to me. The movement of the coffee waves are realistic-ish at best. The boat motion also looks wrong and doesn't match up with the liquid much of the time.