Summary of what you have learned in the past two weeks

 About the first week of the first lesson I realized the professor and the class rules and Wikipedia.  "What does Wikipedia have to do with collective intelligence?" I think the term "collective intelligence" is an everyday phrase.  For example, when completing a complex job, the leader may want to emphasize the role of the team and often hear the sentence "This is inseparable from everyone's collective wisdom!" Just like Wikipedia papers may have many authors, but when they are cited, often  Only the first author is mentioned.  Wikipedia is composed of many "first author" results into a huge knowledge network - encyclopedia is like collective intelligence. 

The question in the second section is "what is more important: the actions of individuals or the environment that influences them?" I think the environment is more important. If the environment around you is optimistic, that person must be cheerful.  If the environment is negative, the behavior of that person is also negative.  Personal behavior changes with the environment, just like a person who does not know English lives in an English environment, that person must learn English.

In the third class, "Why burn the national flag?" My idea is that the national conditions of each country are different, and Americans treat the national flag differently from people in other countries: respect the national flag, they love this country, and commemorate it when it comes to festivals  On meaningful days, each family hangs the national flag; when they encounter something that makes them dissatisfied, "burning the national flag" becomes their first choice, which is an attitude they express their dissatisfaction with the government.

There is also an impressive question "Why is pink associated with girls?" This question is of the same nature as many questions.  For example, "Why do couples usually choose candlelight dinner?" These questions are very interesting.