Another value of cultural genes is that social theory can be more inspired by biology. Compared with social theory, the level of development of social theory is still very low. Biology has achieved rich results and formed a set of methods and paradigms. The discovery of biological gene brought about a revolution. It has freed people from  complex traits of plant and animal. In a genetic project, people can use some simple methods to create miracles. In the past, sociologists can only envy these successes. Now the similarities between cultural genes and biological genes make infinite imagination. People can promote the development of social sciences, even to revolution.

Baudrillard did not compare symbols with biological genes, but his theory of simulacrum belongs to the theory of cultural gene. Karl Popper made this comparison, but he did not directly point out the relationship between the third world and biological genes. Susan Blackmore's meme theory has raised the relationship between cultural genes and biological genes to unprecedented heights, but there are also obvious flaws.

Popper, Baudrillard, and Blackmore all discovered the role of symbols in social development, but they did not learn from each other. Because their understanding of the role of symbols and copying is not thorough enough, they cannot be consistent and research separately.

Popper's Theory of the Third World

The theory of the third world is a major research resulted in Popper's evolutionary epistemology. This theory puts forward some important ideas of the general evolutionary theory. Popper believes that the cultural background is relatively free from the creators. There is a third world, “the world of the objective contents of the thought, especially the scientific and poetic thought and of works of art”. The first world is “the world of physical objects or of physical states”, the second world is “the world of states of consciousness or of mental states, or perhaps of behavioural dispositions to act