To make the pod go faster, Musk proposes mounting a large fan to its nose. The fan would take high pressure at the front of the pod and direct it toward the rear, effectively alleviating the pressure of the pod and facilitating high speeds. Musk estimates that the cost of the project would fall between $6 billion and $7.5 billion, depending on whether the Hyperloop would ship cargo as well as passengers. Although the initial plan is tailored specifically to Los Angeles and San Francisco, Musk also mentioned other potential cities that could could incorporate Hyperloop, including San Diego and Las Vegas. Hyperloop is a different mode of transportation than the already approved California high speed rail system. Musk has criticized the high speed rail plans, calling them "a bullet train that is both one of the most expensive per mile and one of the slowest in the world." Surprisingly, the California High Speed Rail Authority did not dismiss the Hyperloop as a pipe dream. An official statement from the agency said that "new technology ideas are always worth consideration...We'll be happy to share our experience about what it really takes to build a project in California." Though Hyperloop's description would fit at home in any tinkerer's workshop, Musk sets himself apart with his track record. His companies, SpaceX and Tesla Motors, have pioneered both the commercial space flight and electric car industries. But Musk has asked both the tinkerers and the established researchers for feedback. "Hyperloop is considered an open-source transportation concept," he writes. "The authors encourage all members of the community to contribute to the Hyperloop design ... to help bring Hyperloop from an idea to a reality." Sponsored Content by Taboola