California should build a new mega city from scratch in Northern California, which is the poorest part of the state.  The new city should balance commerce, art, public space, and the environment.  Skyscrapers connected by a subway/tunnel system, skyways on the second floor and commuter bus stops built into the sides of the buildings would help encourage quick movement of workers in the dense downtown. The city would be built extremely dense by US standards from the start so that entrenched homeowners would not be able to stop growth. The state would encourage large tech companies to move their staff to the new city to alleviate the housing crisis in San Francisco, as well as poaching tech companies from cheaper states.  The new city would be well positioned geographically between Silicon Valley and Seattle/Vancouver.