I love trains but for some stupid reason >$200 million per mile is the average cost for urban rail. We already sank a huge upfront investment into the interstat

I love trains but for some stupid reason >$200 million per mile is the average cost for urban rail. We already sank a huge upfront investment into the interstate highway system, so we'll have to settle for a private enterprise solution with semi-autonomous vehicles. At least, until the US Congress becomes less dysfunctional...