"Our keynote speaker, USC Lusk Center director Richard Green, discussed the connection between housing and the economy. If home builders delivered 1.5 million houses per year, the economy would be much steadier than it is, because housing leads the business cycle of life. Don't worry about a collapse in demand: By the time the Boomers retire, the Millennials will be entering their home-buying years. (And by the time Millennials retire, we'll all be living on Mars.)"