<s>[INST] So if you look at say, for instance, Robert Moses in New York, built loads of highways, they were supposed to solve congestion, and all they did was lead to more congestion. How do you avoid tunnels doing exactly the same but just being very expensive in the process? [/INST] I have to say this notion of induced demand is one of the single dumbest notions I've ever heard in my entire life. If, you know adding roads just increases traffic, why don't we delete them and decrease traffic, and I think you'd have an uproar if you did that. But the real problem is that we have not. If you take say, congested cities, which really almost all large cities are congested. You have a fundamental dimensional problem. You have, say these tall buildings or multi level buildings, where you've got you know, people you know, living in 3D, and then you want to take them in and out of those buildings on a 2D road network. Like how would you possibly expect that to work, especially if they want to all, you know, arrive and depart at roughly the same time?

This is just a recipe for traffic obviously. So now if you go 3D which you go 3D up or you go 3D down, now you have, your matching the dimensionality of the buildings. The buildings are 3D and if the road network or you could potentially have flying cars is 3D then you will completely alleviate the traffic problem. So think of tunnels not as a single layer of tunnels but as, as many layers as you want. And whatever layer count isn't necessary to drop traffic to negligible levels. I think it's so obvious this will work it boggles my mind that people wouldn't think it would work. And we already have a proof of concept of this in Las Vegas with a tunnel going from the convention centre to the strip. And that will soon be connecting all of the hotels and the airport in Las Vegas. And people will just try it out for themselves. It's working really well already in Vegas, and there was some scepticism among the county in the city as to whether it would be effective and I think the test tunnel just barely succeeded in a vote with you know that with the local government in Clark County and Las Vegas. But once they saw the national test tunnel and rode in it themselves, we got a unanimous vote in favour of expanding into the whole city. So that should tell you something. </s>