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Technology as such...

The chain of inventions is what we master 
as technologists; eg,

  -[No one person can make even a pencil]-
      video lecture by Milton Friedman
  
      based (roughly) on a lecture 
       "I, Pencil" by Leonard Read.
           -[text here]-
               (a bit rambling, stream of consciousness....

  See also:  -[www.ideachannel.tv]-
           (more Milton Friedman stuff)