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For as much as I love the dream of high-speed rail linking our great metropoli, the thought of spending hundreds of billions of dollars to build out a network like that is daunting, especially when a flight from BOS to DC already costs $36 and only takes 1½ hrs. Not to mention what autonomous cars might do to the picture.

Yep, pretty much. As a die-hard train lover, I've moved on to autonomous cars as the hope for civilized travel in the future.

Like a tiny train that takes you wherever you want to go. Plus, the era of public spending on public good in the US is over.

May be the cars will travel very close taking advantage of drafting. Like trains on the highway.

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