Better than a car? Mechanized individual transportation that isn't bounded in the 2d plane. I think Elon also asked the question of what could be better than a

Better than a car? Mechanized individual transportation that isn't bounded in the 2d plane. I think Elon also asked the question of what could be better than a train and threw out one possible answer: Hyperloop Sewer? It doesn't take a lot of creativity to see how a sewer could be better. How about micro waste treatment directly inline with the sewer so now it is not carrying waste, but clean water, and just pipe it directly back in.