I don't want say anything bad about mass transit for large cities where it makes sense. But you have to reach a certain economy of scale before trains become m

I don't want say anything bad about mass transit for large cities where it makes sense. But you have to reach a certain economy of scale before trains become more efficient than cars. A train with just a couple of people uses far more power than a car does. We can do a lot to encourage people to live closer together by ending subsidies, removing zoning laws, etc. But in the end we still need farmers and other professions living spread out across the country. We can't achieve perfect urbanization. And given that electric cars are going to be a necessary part of getting to zero emissions.