In 2040, mankind has gradually entered the post-digital era. The great progress of science and technology has closely linked human life with digitalization. Human beings rely on the bonds generated by information interaction after digitization to connect. Information flow closely connects human beings with the physical form of the world and the virtual world. However, due to the strong enough of information digital virtualization, the proportion of the physical form of the world is gradually shrinking, and the whole world is composed of information digital. When the proportion of human society is replaced by digitization, how will this huge human group change?