Earlier quoted context omitted.
Only if the route is unchanged. Looking at a map it’s not going to be a straight line which increases travel time for every detour. http://www.hsr.ca.gov/Newsroom/Multimedia/maps.html
Yeah, but we're talking about a train that gets people from SF to LA in a couple hours or so. That's already pretty awesomely fast.
gets people from SF to LA in a couple hours or so
Only if it had zero stops, which would defeat the purpose in the first place. Every stop means deceleration, stop to offload people and freight, then onload people and freight, then reacceleration to speed.