Always worth noting that "this time may be different." Specifically, this trend may or not be the beginnings of a long-term structural move of the world's wealt

Always worth noting that "this time may be different." Specifically, this trend may or not be the beginnings of a long-term structural move of the world's wealthy from suburbs to urban areas, with world cities like San Francisco, New York, and London becoming luxury dwellings for the 1%. If so, then prices will continue to rise substantially.