On Monday we had some fun speculating about how billionaire entrepreneur Elon Musk's planned transportation system might work, but now we've heard from the man himself.
RELATED: Update: Inventor Musk shares plans for high-speed 'Hyperloop' travel (PDF)
Musk unveiled the alpha plan yesterday afternoon, saying that his Hyperloop could get you from L.A. to San Francisco in 30 minutes for one-tenth the cost of the proposed high speed rail route.
Bloomberg reporter Ashlee Vance spoke with Musk about his plans. He's writing a book on the founder of Tesla, SpaceX and Paypal and got the inside scoop on the Hyperloop.