那么赵明的荣耀经验在AI时代是否有用呢？
If the node we’re looking at is clean, we return the value of that node. We know that the existing value doesn’t need to be recalculated because it’s not been marked as dirty, so it’s not downstream of any changed inputs.
，更多细节参见PDF资料
（作者为中共重庆市委党校（重庆行政学院）教授），这一点在新收录的资料中也有详细论述
The challenge from China