Earlier quoted context omitted.
I agree with you, but infrastructure is often built to expand future regions. Before the Golden Gate and Bay Bridges, there was a lot less commuting to SF. They only had ferries. Building the bridges allowed the broader region to expand and prosper.
Exactly, as people are priced out of the cities, having good HSR connections to SF and LA would be able to spur a lot of regional growth. This is a pretty common kind of blindspot for people to have, talking about how crazy it is to build transit to places with or lower populations or less population density, but forget that a lot of well-connected, dense places with good transit weren't very dense before good transi…
There is a reason these cities never got developed more than they are. It's kind of flat, unappealing scenery and it's boiling hot in the summer. People would rather live in LA. California has huge swathes of land with very, very low population density because nobody wants to live there.