I wonder if graphite could be used as a material for the disk in this. It would be cool if it worked, I know what I think of when I read about a large spinning disk anyway, little green men. This is something Elon Musk should look at, he would have the resources to find out if it's BS or not.
https://www.scotsman.com/news/welcome-to-mars-express-only-a-three-hour-trip-2480607 There was a great article on Heim Theory in New Scientist a few years ago, but it isn't available online anymore.