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高校生
解決済み
5？
7.
a scientist
You will only ever have 150 friends during your lifetime. No matter how popular you are
at school, how many parties you attend, and how many people you meet in different you
can't have significant personal relationships with any more people than that.
Why does the situation exist? It is known as Dunbarºs number because it was first explained by
2 Robin Dunbar who wrote a book named How Many Friends Does One Person
Need. The limit is just part of human nature. At a critical stage in human history, we lived in mobile
groups of around 150 people. Our brains adapted to that fact and came to regard it as
What happens if you meet more than 150 people? Are you unable to remember their names?
you may "know" more than 150 people, you won't think about them very much.
They won't be emotionally important to you. Your brain can't remember so many relationships at
the same time. Older acquaintances will disappear in your mind and be replaced by newer and
5
Thus, you'd better choose your friends carefully. After all, you can only have 150 of them!
3
Not exactly 4
ones.
2
DO (A) closed (B) close (C) closest (D) closer
(1)B (2)C (3) A (4) B (5)
8.
A collection of short stories titled 40 Minutes Late that
bed
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