Elon Musk, founder of Tesla and SpaceX, thinks that commuting from Los Angeles to San Francisco in about 35 minutes by train is possible with what he calls the Hyperloop Transportation System.
Traveling the old way, by car, it would take 5 hours and 34 minutes to travel the distance of 371 miles from Los Angeles to San Francisco. Making the same trip in the Hyperloop would take just 35 minutes because you would travel at 760 miles per hour, a "fifth mode of transportation."