&gt; The best answer for NYC is probably to aggressively gentrify as many neighborhoods as possible, which means (bluntly) displacing most lower income residents and moving in bicycle riding organic jam loving armies of hipsters.<p>Where exactly will you find these armies of upper-middle class people? Wages and social mobility continue to decline.<p><a href="http:&#x2F;&#x2F;www.epi.org&#x2F;publication&#x2F;even-the-most-educated-workers-have-declining-wages&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.epi.org&#x2F;publication&#x2F;even-the-most-educated-worker...</a><p><a href="http:&#x2F;&#x2F;www.theatlantic.com&#x2F;business&#x2F;archive&#x2F;2015&#x2F;07&#x2F;america-social-mobility-parents-income&#x2F;399311&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.theatlantic.com&#x2F;business&#x2F;archive&#x2F;2015&#x2F;07&#x2F;america-...</a>