s, and social organiza- tions cannot be directly copied in large number. Only symbols such as words and videos can be reproduced in large number, and then these symbols can be used as the mother board to generate consciousness and produce new civilization achievements. The treasury of knowledge as a system is a continuation for thousand years. It has accumulated continuously and will rarely be reinvented. People are constantly changing generation by generation. But both biology gene and cultural gene have a drawback: the lack of function. The book can't be eaten, and DNA can't hunt. Although cultural genes are complex and orderly systems, they are only symbol systems and do not have the functions that people need.

Reference

1. Popper,K.R.(1972) Objective Knowledge - an Evolutionary Approach. Oxford: Oxford Univ. Pr., p.106.

2. (ibid.) 112.

3. (ibid.) 164.

4. (ibid.) 108.

5. (ibid.) 112.

6. Christoph Horrocks.(2005). Baudrillard and the Millennium Year. Wang Wenhua Translated. Peking University Press, p.5-6. (In Chinese)

7. (ibid) 7.

8. Susan Blackmore.(1999). The Meme Machine. Oxford University Press, p.43.

9. (ibid.) Foreword 12.

10. (ibid.) Foreword 11.

11. (ibid.) Foreword 12.

12. (ibid.) 242.