You are assuming that they could move into SF. I'm sure Google could easily fill the Transamerica pyramid. SF isn't amenable to new construction, and Google an

You are assuming that they could move into SF. I'm sure Google could easily fill the Transamerica pyramid. SF isn't amenable to new construction, and Google and most these companies could easily be more decentralized then they are now in MV if they had to take up residence in the city.