right lori siegal? joining us with more on this. he released his plan, elon musk, the idea of a hyperloop, rocketing from san francisco to sflaengs halfen hour. incredible. traveled like something you see at the big drive-thru. how realistic is thises? do we actually think this is going to work? >> i think the sentiment is, if anyone can do it, it would be elon musk. so he's saying it's possible and he actually showed dozens of engineers from tesla and space x, released how he thought could actually happen. monday we saw pictures, how this would work. you're looking at them now. a tube-like device to travel up to 800 miles per hour. what it's going to come down to, is he going to be able to put in the resources to build this? up until now he's said, this could be a possibility, but he said if it was his top priority he'd be able to build out this prototype in about one or two