The main content of this program: In life, it is not uncommon for people with extraordinary memory. Their ability to keep an eye on things makes us dumbfounded. Zhong Yi, a professor at Tsinghua University, studies the mechanism of forgetting. He has been using his own way to crack the secrets of human memory and forgetting. What kind of brain mechanism is working behind memory? More exciting content, please pay attention to this program. (Approaching Science, March 17, 2014, Memories)