HSR is very likely to disappoint (underwhelm) in CA if it ever gets built, California is not Flat, most places where HSP works are flat and straight.
Anyway IMO it is a big Waste (in CA), I still think by the time you get to and from stations, From where you are coming from to where you want to go, self driving cars will be much more convenient 90% of the time.
Also where HSR works it goes though un-populated areas, not through 12 -13 major metros.