Barabasi: The Sixth Link pp. 25-35

Barabasi: The Sixth Link pp. 25-35
1. What is the principle of six degrees of separation? What number of social links does any one person need to be connected to global society? p. 30
The principle of six degrees of separation is that one person can communicate with any other person through five linking people.
Any one person need six linked persons in order to be connected to global society.

2. How is the fabric of society today different from pre-internet society? p. 31
The URLs can allow us to move with the click of a mouse from one page to another. They enable us to access to and gather information.

3. How many more links separate any pair of web pages compared to people in society? What can explain the difference? p. 34
In addition to six links in people's society, thirteen links are necessary in the web world. Nineteen links are necessary to connect any pair of web pages. On the other hand, six links are necessary to connect any pair of people in society.
The difference can be explained by the hugeness of web world compared to people's society.

4. So far, what ranges of separation have network scientists discovered in different kinds of networks? p. 34
There are three kinds of separation. First, our society has a separation of six. Second, the web has a separation of nineteen. Third, the internet has a separation of ten.

5. What does research suggest about the fundamentals of networks? p.34-35
The more links people add, the closer distance they need in order to reach any other person. The more links which each person has make the web world small.

6. What is your estimate of your personal number of connections to society? What connections are your strongest?
I estimate that I need 10 persons in order to communicate with any other person in my personal society.
My strongest connection is my members of the soccer club of my high school.