There’s a really, really fast subway system in your future.

Would you believe ground travel from Los Angeles to San Francisco in less than thirty minutes? That’s the prediction of the Hyperloop’s financier, billionaire entrepreneur Elon Musk (the co–founder of PayPal). The Hyperloop is being designed as a driverless public transport train that will rocket between American cities at speeds up to 700 miles per hour. Musk has tweeted his intent to build a first test track in Texas.

Musk has described the design of Hyperloop as being a cross between the Concorde, a railgun and an air hockey table. Passengers will sit in cars that are fired through a near–airless tube. Magnets will accelerate and brake the car capsules and not let the cars ever actually touch the sides of the tube. Musk foresees an initial $6–Billion investment and a 3—4 year completion schedule for the first phase.

Hyperloop Transportation Technologies is a crowd–funded project already working on how to make this transport system of the future a reality, but as of yet they have not created a prototype. Around 100 engineers across America are engaged in development of the system, but they estimate ten years as the wait for a commercially viable Hyperloop.