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becomes smaller and smaller,
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and individuals become more and more dependent
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on things discovered and known by others.
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Take the toothbrush.
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Who's got a mic here?
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Let's go to the gentleman in the red t-shirt.
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If it were your assigned task in your first job
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to set up a manufacturing plant
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for ordinary plastic toothbrushes with nylon bristles,
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how would you go about it?
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I wouldn't really have a good idea.
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Probably start looking on Wikipedia.