Notably, after Zhang Beihai meets with his father in the hospital, he confronts Wu Yue about Wu Yue’s defeatism. According to Zhang Beihai, that defeatism stems from Wu Yue’s belief that because the Trisolarans are more technologically advanced than humans, the Trisolarans will necessarily win the war. Zhang Beihai, on the other hand, argues technology won’t be the only factor that determines success on the battlefield.