I know I've already mentioned Evacuated Tube Transports in another topic (similar to SwissMetro), but I feel the benefits of such a system have not been fully realized. ETT could easily be built with current existing technologies, its just a matter of engineering, and gathering resources (expensive).
-Assuming a straight global backbone ET3 track, the speeds could reach up to 2000mph, offering faster travel than aircraft or any other method. -Extremely energy/resource efficient -High density computer automated traffic I would imagine it would be more economical to build above ground, and its only a 5ft diameter tube, comparable to building an oil pipeline. Global shipping trade and traveling could be largely reduced with distributed hubs across the world, and as Jed said autonomous cars/taxis for local travel. http://www.et3.com/ http://www.youtube.com/watch?v=03kVU2FYl6U (Highly recommend) I would like to see more educated debates about this technology, weighing in on the pros and cons of adopting such a system.
