Actually the answer is very interesting. The launch loop is a so-called active structure. The momentum of the rotor is raising the structure (notice that ther

Actually the answer is very interesting. The launch loop is a so-called active structure. The momentum of the rotor is raising the structure (notice that there are cables stays, but they are to hold it down, not to support it). In this way active structures can be made to any height, taller than material properties that limit static buildings. At some point this technique will have to be used to make the next world's tallest building. Disadvantage is that the power must be kept on or the building collapses. Relevant Isaac Arthur video: https://www.youtube.com/watch?v=zSimYARyL2w&index=15&list=PLIIOUpOge0LtW77TNvgrWWu5OC3EOwqxQ https://www.youtube.com/watch?v=zSimYARyL2w&index=15&list=PL... https://www.youtube.com/watch?v=5QLOAQmZbZs https://www.youtube.com/watch?v=5QLOAQmZbZs