I just watched the video he posted a few pages back and it say nothing about how the technology works. Here is a description I found:
http://www.pbs.org/wgbh/nova/next/tech/hyperloop-and-high-speed-trains
"The basic concept of the hyperloop is a pair of elevated steel tubes through which capsules carrying 28 passengers glide along at up to 760 mph on extraordinarily thin cushions of air. Capsules would be accelerated via linear motors, the same technology used in maglev trains. Linear motors are just like regular electric motors that are cut open and laid flat; electromagnets embedded in the track create waves of magnetic fields that propel capsules down the tube. To speed things further, air would be pumped from hyperloop tubes down to 100 pascals, or one-thousandth of the air pressure at sea level, reducing wind resistance. The remaining air would be compressed and fed through skis that run the length of the undercarriage to levitate the train."