Six degrees of separation is way of dividing everybody on this planet into six other people. There are six billion nodes in the world but people need only six links from each.
2. How is the fabric of society today different from pre-internet society? p. 31
The net works behind society and the online universe were fundamentally different(31).
People can move quickly in the web thanks of search engine but before this, people had to click a lot of times to search something.
3. How many more links separate any pair of web pages compared to people in society? What can explain the difference? p. 34
Nineteen degrees may appear to be. But there is slight difference between six and nineteen because the internet network had much larger number of routers.
4. So far, what ranges of separation have network scientists discovered in different kinds of networks? p. 34
Scientists in different fields of science are separated by four to six coauthorship links.
5. What does research suggest about the fundamentals of networks? p.34-35
Networks require only one link per node to form a giant cluster and the number of links is small in the network.
6. What is your estimate of your personal number of connections to society? What connections are your strongest?
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