What did Liu Cixin mean by: In this book, a man named “humanity” confronts a disaster?

Question

In a postscript to the American edition of The Three-Body Problem / 三体, the author says:

In science fiction, humanity is often described as a collective. In this book, a man named “humanity” confronts a disaster

But I cannot recognize any character's name as being "humanity."  Maybe the man who most clearly sees the disaster is Wang Miao (汪淼).  I don't think that can be "humanity."

Is there a character whose name can be read as humanity?  Or perhaps is Liu speaking metaphorically in the postscript?

Answer 1

I think the character should be Cheng Xin(程心）. She was the main character in the third book of the Three Body Problem. Cheng Xin, in Chineses pronounces as sincerity. And in the book Cheng Xin was a kind and sincere person, she has been chosen by people to be the sword holder to deter the three body civilization.But because of her kindness, it has caused huge disasters like earth being intruded by the three body civilizations(even though it didn’t really happen)and etc. Liu Cinxi loves to use the same pronunciation Chinese words to represent the personalities of the characters such as 维德(Wei De) the disobedience of moral and Luo Ji（logic) and etc.So in conclusion, Cheng Xin is the one who represents humanity but actually brought disaster. And Liu was not only emphasizing the humanity of Cheng Xin, but also the whole human beings.