During a conference call on Monday, Tesla and SpaceX CEO Elon Musk dished out the details of his "fifth mode" of transportation -- a lofty and innovative system that's unlike anything ever built.
Laying out his vision and answering questions on the futuristic-sounding plan, Musk sounded confident his big idea could get done.
The proposed cost for the Hyperloop transportation system, which wants to get you between San Francisco and Los Angeles in just 35 minutes, Musk says, is about $6 billion.
That sounds very cheap and fast compared with the current California high-speed rail plan, which is aiming for a 3-hour travel time
for the same trip, with a current budget of $68 billion