From: mdhangton@gmail.com   
      
   On Saturday, June 28, 2014 2:22:55 PM UTC-4, Shawn Wilson wrote:   
       
   > So, you have an amount of economic activity on the planet.  Obviously it   
   must be scattered.  There aren't large unified deposits of [economia] to   
   exploit, so no large cities to exploit them.  QED.  Think the 19th century   
   American frontier.  If the    
   inhabitants wanted large cities they would have stayed back east.  St Louis to   
   San Francisco that was jack-all for large cities.   
   >    
   As I understand it, the American frontier production, after local needs were   
   met, revolved around driving livestock toward economic centers eastward or to   
   Chicago and the Great Lakes region, or floating products and raw materials   
   down the Mississippi R.    
   to the city of New Orleans.  So I don't see how the existence of cities can be   
   cut out of the scheme.   
      
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    * Origin: you cannot sedate... all the things you hate (1:229/2)