I am so glad California did not spend $80+ billion on the high-speed SF to LA rail project. It makes no sense. Flying from SF to LA would be faster than the train. Driving isn't that bad either and once you get to LA you need a car to get around. If you really want to take the train to LA there is already a beautiful route on Amtrak along the coast.
Take the Paris-Lyon TGV. For about 30$ minimum price, you get from city center to city center, 300 miles away in 2 hours.
There are trains every 30 minutes.
I did that Amtrak route (Coastal Starlight) recently and it just took so long. I'd rather take a bus next time. I won't be doing either, though -- I'll just fly. It costs the same anyways.