In-process control is not as good as in-process control. In-process control is not as good as in-process control.

There is a widely spread story: Wei wenwang asked Bian Que: "which of the three of your brothers is the best in medicine ?" Bian Que answer: "Long Brother is the best, middle brother is the second, and I am the worst ." Wen Wang asked: "Why are you the most famous ?" Bian Que answer: "Long Brother is treating diseases before and after the onset of illness, and has no feeling. The average person knows that he has exceeded the cause in advance, so he is well known, at the beginning of his illness, the average person thought that he could only cure minor illness, so he was famous only for his hometown. When I was treating a serious illness, people always saw that I was bleeding through a needle on the Meridian, applying medicine to my skin is the most skillful, so my fame is everywhere in China."
As a result, many people come to the conclusion that post-event control is not as good as in-Event Control, but in comparison, people engaged in post-event control are easy to spread their reputation and benefit the most. It can be seen that there is a gap between the world's understanding and the facts: Diamond is expensive, and it is dispensable for people; rice is cheap, but people have to eat. Back then, when wrong decisions cause significant losses, and then seek to make up for it, even if the famous "Bian Que" is invited, it also has to "Hurt skin bleeding ", there is also a possibility that "the sky is not busy ".