I think it's supposed to be more efficient, not just fast. I worked with a guy who helped design Maglev trains for China. With my limited knowledge, I'd think that a train floating above a track with no friction and being propelled by a magnetic wave has more potential that a train in a tube. I'm not familiar with the power and technology it takes to create that magnetic wave, but I still think it has more potential. I should have asked how the wave was created, but I was too amazed that the technology even existed.

I was teasing one of my employees once and he casually replied "I was looking for a job when I found this one." I found that to be highly profound.