We've been there already in the 90s, and it was too expensive [1]. Has the technology changed that much ? [1] https://en.wikipedia.org/wiki/Swissmetro https://

We've been there already in the 90s, and it was too expensive [1]. Has the technology changed that much ? [1] https://en.wikipedia.org/wiki/Swissmetro https://en.wikipedia.org/wiki/Swissmetro