http://www.paleofuture.com/blog/2007/5/29/moving-sidewalk-1900.html
Maybe Heinlein's The Roads Must Roll or Asimov's The Caves of Steel weren't quite as huge a leap of the imagination after all...
Moving sidewalks
http://www.paleofuture.com/blog/2007/5/29/moving-sidewalk-1900.html
Maybe Heinlein's The Roads Must Roll or Asimov's The Caves of Steel weren't quite as huge a leap of the imagination after all...
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