Comment by ryanwaggoner
9 years ago
Anything is possible, but you were making the claim they they exist, which they definitely do not. They might theoretically someday exist, but so might Hyperloop.
9 years ago
Anything is possible, but you were making the claim they they exist, which they definitely do not. They might theoretically someday exist, but so might Hyperloop.
The idea of a 600mph train running in evacuated tunnels is about as old as the idea of trains itself: http://io9.gizmodo.com/5731620/in-an-alternate-universe-ther...
China is looking at building something like that: http://www.zdnet.com/article/china-developing-600-mph-airles...
Note that it's an above-ground system because the costs of building underground are utterly ridiculous for long distances.