an issue. >> this is going to -- something like this is going to happen in some shape or form. >> sure. >> that's what all the experts say. californians cannot afford to have 40, 50, 60 flights a day and not have some fast rapid system between san francisco and los angeles. whether this is the answer, i don't know, but what is very clear about musk is he wants this to begin the debate. so he's putting his own money behind it to create the prototype, which he says ultimately could be the answer. >> and it's a fraction of the cost of the one that the state wants to build. >> 65 to $70 billion. >> a tenth of the cost. >> nobody has yet come up with the funding for this. will it be private? will it be public? i expect it would be private because you wouldn't get it done others wise. it's a long way from fruition but, ladies and gentlemen -- >> i love the idea. >> -- i urge you, look to the future. >> i think that's the beauty of it. he's already made his contribution. he's built something. an idea.