HSR from SF to LA ain't gonna be $55 when everything is finished.
Whoever came up with that number just wanted to sell the project to the taxpayers.
Factor in all the cost overruns to build the thing, maintenance costs AND all the fat and lazy rail union workers who will want $100,000 a yr. + crazy lifetime benefits and the price per ticket will be mega high.
Look at how much BART workers earn.
Hell, we can't even build half a bridge across the SF bay without the thing being billions over budget.