Maps have power. They can make the illegible legible and the invisible visible. They can make the obvious even more obvious and the impossible seem possible. When Stamen Design mapped the routes of the private buses that ferry techies between their homes in San Francisco and their jobs in Silicon Valley for the 2012 Zero1 Biennial, the aesthetic choice to render the map as a transit-system schematic made an open secret within San Francisco obvious to the world. The city is becoming a suburb of the Silicon Valley suburbs.