So you need a really good physics engine.

所以你需要一个非常好的物理引擎。

Another group's " neural physics engine" beat less structured neural nets at predicting ball collisions in containers.

另一组的“神经物理引擎”在预测容器中的球碰撞方面击败了结构化程度较低的神经网络。

So the physics engine, the rules that have been put into the software to mimic like gravity and the different properties of our world are good enough that this is actually training the hand.

因此，物理引擎、已放入软件中以模仿重力的规则以及我们世界的不同属性都足够好，这实际上是在训练手。