It's my theory partly why China has smashed out so many thousands of km of HSR and what appear to be excessively wide highways (other than prestige and a genera

It's my theory partly why China has smashed out so many thousands of km of HSR and what appear to be excessively wide highways (other than prestige and a general vibe of governance=more, bigger infrastructure). In 100 years when the ossification and NIMBYism is the norm, the rail corridor land is already there. Renovating a line that already exists may not be easy, but it's easier than prizing land out plot by plot, and even in China that's a huge hassle. Plus the hard physical bits like blasting tunnels and digging cuttings is already done before labour costs succumb to spiraling cost disease. Then again, at about $45 million per mile, it's actually not even that much more expensive that Chinese HSR: to build the current 45000km of rail at the LV-LA price would be $1.25 trillion, which isn't vastly more than the Chinese system has cost so far. In fact it's very roughly about as much as the US spends, per year, on healthcare on top of what European countries pay for the same outcomes (total annual spending: 4.2 trillion and a bit, or 12.5k per person, vs global number two, Switzerland, at 8k: about 1/3, not far from 1.25/4.2!)