Exactly. The horseless carriage will never catch on.

Nobody will ever travel a mile a minute.

Surpass the speed of sound? Impossible.

Its not impossible its just very very difficult the shell needs to be biilt in such a way to use the stars gravity to hold itself together you wpuld start buy building large trianglular satellites in the solar orbit of the planet you want the size to be once you have a solid ring ypu begin building other ring s and use thrusters to keep everytjing in the right spin. Next rings are at 90 deg and 9pg to both so you have 3 rings then its filling in the gaps eventually the shell is come plete and you begin terra forming

I, quite honestly, don't read a lot of what you say as it is mostly ill informed.

You literally used a letter to the editor and Wikipedia as a source. FFS, wikipedia is not allowed in academia and further, isn't even a valuable source... for sources!

You claimed an absolute statement and I called you on it by quoting other absolute statements.