Originally Posted by
tom11011
High speed trains with mag-levitation and vacuum tunnels is future of mass transit. About 100 years from now your children will be telling their grand kids all about how these weird tubes flew through the air.
The science is sound, but the infrastructure costs will be beyond colossal...far beyond the ability of few tech billionaire angel investors to fund. So it will take massive investor coalitions and/or government sponsorship. And then it would have to be protected from terrorists...a train traveling at high hypersonic velocity colliding with a cinderblock would release energy equivalent to about 40lbs of HE. Still have to stand in line at TSA.
Probably more than 100 years.