[Innsertnamehere]

I'm seriously doubtful of that cost. Especially since he is not considering development costs. I feel the concrete supports alone for 500km (meaning 5,000 supports) would cost $4 billion. Never mind the stations, inevitable tunnelling required to reach the downtown core of the cities, solar panels, batteries, tubes, motors, matinence yards (probably a billion alone for that), etc. Often with infrastructure projects is when they are first proposed they are really cheap, then as design progresses and they realize what actually needs to be done to get the project to work, costs skyrocket. I love the concept, but I have problems with it being $4 billion dollars. I have a feeling that final project costs would be closer to $40 billion.