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It is wrong to think that following your friends online will introduce you to new ideas, opportunities and information. However, if you spend the same amount of time reading other people ideas but following a certain topic that interest you. This will probably expose you to more information, viewpoints, ideas, etc..
Curiosity killed the cat!
I don't know were did the above proverb come from. But I know how curiosity came to exist. It could be defined as the motivation to explore or examine. Curiosity is a hard wired innate behavior in many animals including invertebrates like fish. It is an instinct that probably increases our chances of survival. Simply by increasing our chances of getting food and/or sex. It is also important for learning and
So a cat sniffing a small object, then either trying a small bite at it or leaving it afterwards, is out of curiosity. A kid throwing solid objects at a glass door several times and trying to understand why things don't pass through, is also out of curiosity.
There is nothing really new in what I have just said. Almost common sense.
Having developed out of a primordial soup that existed by the physical forces that were just a side effect to the accidental bad joke and entirely purposeless big bang. I propose, people join Facebook to get connected to other people to increase their chances of getting their sperm or ova join a biological procedure called fertilization, which is important for our genes to propagate.
So this is the subconscious reason then? Well, sort of but this doesn't explain things properly?
Facebook is a closed network, it is like a fortress, people outside it couldn't see what people inside are doing. But people on the outside know the existence of the thing and they occasionally get a glimpse of something related to what is happening in the inside. Plus the whole village occasionally mentions Facebook with a sort of `controversy'. This actually makes Facebook more attractive and motivating for people to join.
By the time you have already joined Facebook, you have already spent time putting information adding friends and you have now access to information about your friends. Now this is something that is hard to give up on.
We are interested in ourselves and the people close to us. It is extremely interesting for us to know where we are in relation to people we know. It is in our culture, ''where are we and where our friends are?''. ''Where are we and when will the polar ice caps melt?'' is not an important issue.