One way to look at this is that the Bay Area focuses on transportation technology that works and scales regardless of the rare socio-political star alignment that makes HSR and subways possible.
And the Bay Area, largely, eats its own dogfood.
There is no faster, more powerful public transportation system than a city that allows Uber to offer mototaxi service. Uber was allowed to turned that on in Rio at some point in the last couple years and it puts busses and subways to shame. The number of cities where a subway is consistently faster than a skilled motorcyclist who can lane-split is very small if not zero.
And the Bay Area, largely, eats its own dogfood.
There is no faster, more powerful public transportation system than a city that allows Uber to offer mototaxi service. Uber was allowed to turned that on in Rio at some point in the last couple years and it puts busses and subways to shame. The number of cities where a subway is consistently faster than a skilled motorcyclist who can lane-split is very small if not zero.