This question <3|16> overall <13|15> Scarlett: <13|164>.  
  Question 22: Are there things which can be useful without being in the exclusive possession of the user?   
  [14] Scarlett: There are quite a few things which can be useful without being in the exclusive possession of the user. Intuitively, I think of anything which is used by a community of people. For example, a park which is used by many people, a library where the community has access to all the books and facilities. When shared by a group of people, rather than being an exclusive possession of one or a few people, things are significantly more useful to a group as a whole.   
  Hans: Even to the individual. Think of telephones. Libraries have similar effects: if others read the same books you are reading, they may develop the art or the theory in those books further, which benefits also you.   
  [14] Scarlett: I never thought of that, but it is true that in order to get the full benefit of some things, it is necessary to share them with other people.   
 
 
 
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