(2)The Principle of Survival Struggle of Memes:

Fact 1: People have limited capacity to preserve memes;

Fact 2: Cultural genes are replicating and mutating faster and faster;

Conclusion: Most cultural genes will be lost.

(3)The Principle of Generalized Evolutionary of Memes:

Major premise: The cultural gene with superior variations is not easily lost, and the cultural gene with inferior variations is easily lost;

Minor premise: Most cultural genes will be lost;

Conclusion: The cultural gene with inferior variations must be extinct, and the cultural gene with superior variations can be preserved for a long time.