[marssaxman]

High speed rail from SF to LA is more than a suggestion, it's an active megaproject which broke ground nine years ago:

https://hsr.ca.gov/

[AnimalMuppet]

Yeah. I'm not sure that it will be rideable from SF to LA in my lifetime (even with generous values of "SF" and "LA").

So, yeah, they're working on it... at a glacial pace. And they haven't even gotten to the hard parts yet.