观察者理论是什么意思

　　Dissident artist Hu Jie has managed to make more than 30 documentaries. Films like Though I Am Gone and Searching for Lin Zhao's Soul are vital to understanding Chinese history and society. Widely recognized as the first artist to dare talk about the Great Famine, the labor camps, and the Cultural Revolution, Hu Jie is considered China's first historical documentary filmmakers.