You build a few skyscrapers on very valuable land and then what? The area gets even more popular, congestion gets worse further decreasing the viable area in te

You build a few skyscrapers on very valuable land and then what? The area gets even more popular, congestion gets worse further decreasing the viable area in terms of commuting, some of those people would want to start companies close to where they live and now there's even more demand for that area. For most cities around the world, throughout history, this has their definition of success. Cities grow and change, and deal with the complications of that growth, or they stagnate and decline as economic development moves elsewhere. Paris and London built new high-rise business districts in their suburbs to protect their historic urban cores. This can help relieve demand pressure that otherwise can't be satisfied in a city largely protected from development by regulation. The application to the Bay Area, however, would be to protect San Fransisco by building high rises in places considered less architecturally and historically significant - like trailer parks in Palo Alto.