An amateur driver can easily drive from San Francisco to Boston in less than a week via the highway system. A team of drivers in one vehicle can make the same trip in about two days. But to say that is somehow a marvel is misplaced. It moves people away from interaction and pushes them to live farther and farther out. This causes an artificial demand and thus cheaper prices.
Roads are one example.
So too are houses. Either one of which are put to shame by those built in the founding era. Just a thought.