I thought we had a thread about this already?
One of the companies trying to bring this to life tested it for the first time yesterday.
https://www.youtube.com/watch?v=1e-P...=youtu.be&t=43
What’s Happening With Hyperloop, Explained
https://www.youtube.com/watch?v=RPAtHvyvV7k
Elon Musk's Original document