This forum does not have a sub section for transport, so I am putting this where the Electrical Vehicle thread is...
Hyperloops have the potential for very fast transport, and so, if there was a wide enough network it might take away from the airlines.
I have no idea yet of the energy requirement vis-a-vie the other personnel transport modes but this is another vision from the same stable as Tesla
https://www.inverse.com/article/30029-hyperloop-one-11-routes-across-the-united-states
And 9 more routes proposed for Europe.https://yle.fi/uutiset/osasto/news/new_hyperloop_plans_could_include_helsinki-tallinn_connection/9655016
ps. I don't think I will ever be able to afford to own a Tesla , but one of the earlier proposed routes (Helsinki - Turku/Åbo -Stockholm) is one that I might use.