"Just received verbal govt approval for The Boring Company to build an underground NY-Phil-Balt-DC Hyperloop. NY-DC in 29 minutes," Musk wrote on Twitter. In a follow up post, the Tesla CEO further explained his plans for this futuristic transportation system: "City center to city center in each case, with up to a dozen or more entry/exit elevators in each city."

The Hyperloop is something that Musk has been publicly speaking about for quite some time now. Setting aside all of the specifics, what Musk envisions is an underground transportation system that is capable of getting people from point A to point B in an incredibly short amount of time. If what Musk says is correct, then the Hyperloop would be able to turn a four hour car ride from New York to Washington D.C. into a 29 minute trip. Such technology would no doubt revolutionize America's transportation system and change the way we travel forever.