I concluded long ago that the only solution to unaffordable housing is geographic diversification. You can only cram so many people into one city before costs s

I concluded long ago that the only solution to unaffordable housing is geographic diversification. You can only cram so many people into one city before costs spiral for a myriad of reasons. The root of today's housing unaffordability is geographic consolidation of opportunity into a handful of places. There's a ton of affordable housing outside the top ten cities. For the most expensive places I'd advise young people to consider going there temporarily to get your career started, but don't stay unless you are making serious money -- enough to offset real estate costs. E.g. for the Bay Area I'd say if you're not making over $350k/year by age 30 you should leave.