It's sad that after a nice article he ends thinking in taxing, it sounds like a lost case when you need taxes to solve the problem!

My naive point of view sees lowering lifecost (cheaper real state, health insurance, etc) so people needs less money to live in a good way and costs can go down. That can't be done in Silicon Valley or NYC but thanks to the technology and good transportation can be done in other areas of the country with good planning.