On the other hand look where airplanes are now. It turns out that even though it's theoretically possible to have supersonic human/cargo transport we gave up on

On the other hand look where airplanes are now. It turns out that even though it's theoretically possible to have supersonic human/cargo transport we gave up on it because it turned out not be economical. Hell we were supposed to have suborbital launches, anywhere in the world 20 minutes.