Musk says LA Hyperloop tunnel to be unveiled December 10
https://phys.org/news/2018-10-musk-la-hyperloop-tunnel-unveiled.html
Responding to comments on Twitter, Musk said there would be an opening event that night and "free rides for the public next day."
Musk's venture, "The Boring Company," has been pushing the underground system as a futuristic concept that could radically speed transport within and between cities.