living and living things is replication.

Definition: The living material is a kind of complex material system with relatively stable special structure. This special structure makes it have the function of maintaining its own structure survival with self-replication under natural conditions.

The secret of human civilization is also replication. Biological traits may change the world, for example, predation, excretion, nesting. Human traits, including people's thoughts may also change the world. Therefore, every new idea of human beings is a new trait.

The rate of replication of biological genes is slow, and cultural genes replicate rapidly. Susan Blackmore call culture gene as meme. A newspaper can copy millions pieces a day. If I have a new idea, writing it in a newspaper and distributing it to millions of people, my thoughts may be copied into the ideas of millions of people. If I speak out my thoughts making videos, and copying them to televisions of millions of households by television signal, it can also become the idea of millions of people. In this way, everyone has added a new trait, which means adding a new ability to change the world. Because of the rapid rate of replication of cultural genes, human civilization has evolved at a much faster rate than biology. The copying of ancient cultures is slow, and the copying of books only by transcribing. Later, the technology of printing gradually developed. In modern society, with cameras and networks, the copying speed of cultural genes soars, and human civilization has reached the level of knowledge explosion.

Copying is an imitation. For example, the teacher taught us to learn bodybuilding exercise. We imitate the teacher's actions. In the classroom, teacher writes on the blackboard, we copied it in our paper. This is also imitation. All education and publicity processes are imitation.

Animals can also create civilizations. We can imagine that if a monkey knows how to use fire, and knows how to keep the fire. So it can protect itself with fire and eat cooked food. But after the monkey died, this skill was lost. This