"Extrapolis: A city for the introvert and the extrovert" by Diego Garcia Blanco 
  

This drawing re-imagines the Skyscraper of the 22nd century in a city inhabited by introverted and extroverted individuals. Seeking to energize and have more free space below, EXTROVERTS have small apartments with only beds and a few pieces of furniture, they energize by mingling with others in the buzzling and active open city below. INTROVERTS On the other other hand love to stay at home and stay in their funneled communities above. Their introspective communities have gardens in the middle and the funneled shape protects them from the noise and commotion below. Let our skycrapers be thinner and thinner, to reclaim as much space below for us introverts who love parks and mingling and let the skies be filled with communities for relaxation and introspection for those of us who energize from being in isolation and tranquility above.