translation.en: Yes, we have prototyped cars that can drive by themselves, but without smart vision, they cannot really tell the difference between a crumpled paper bag on the road, which can be run over, and a rock that size, which should be avoided.
translation.zh: 是的，我们现在已经有了 具备自动驾驶功能的原型车， 但是如果没有敏锐的视觉， 它们就不能真正区分出 地上摆着的是一个压扁的纸袋， 可以被轻易压过， 还是一块相同体积的石头， 应该避开。