Global village
Question: I have heard it said that every person on Earth knows everybody
else through a chain of no more than seven people, so I could trace everybody
through a friend of a friend of a friend of a friend of a friend of a friend of
a friend. Is this true?
Answer: I have often dismissed this story as a myth, but this time decided to
investigate. I would estimate that I know or remember meeting approximately 100
people in my life so far (which hasn’t been very long). Say these 100 people
also know 100…
