It is well known that Musk primary reason to push Hyperloop was because he didn’t want them to build a high speed rail for some reason:

> Musk admitted to his biographer Ashlee Vance that Hyperloop was all about trying to get legislators to cancel plans for high-speed rail in California—even though he had no plans to build it.

https://time.com/6203815/elon-musk-flaws-billionaire-visions...