You&#x27;re right, it&#x27;s not the same.  Detroit is a remarkable exception.  But, SF in the late 80&#x27;s early 90&#x27;s was not a place you might think would grow.  People were leaving the city for other bay area cities.  Labor intensive industries were leaving [bedding for one] SOMA, Tenderloin, Market were severely depressed areas.  And companies can go --just like they left Detroit; just like they left SF in the late 80s early 90s.