Anonymous Award writes "Remember those old Isaac Asimov tales of cities of the future, where everybody walked along on moving sidewalks, sometimes clear across a country? Today's airport travelators have always been disappointingly pale imitations of these, but now in Paris we may be seeing the true birth of this wonderfully dangerous mode of mass transportation. Its already as fast as a bus, but when they can crank them up to motorway speeds... well, lets just say this may have a better chance of having cities designed around it than certain other recent innovations."
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