Technologically, it is already possible to make a high-speed rail system that stretches across the country. However, such a system would be expensive and many people do not see a need for it because of the existing highway system. However, in the 19th century, when we built coast to coast railway systems, many people also thought the project was too expensive and did not see a need. Eventually the railways were built and became quite popular.
Which of the following most accurately expresses the conclusion drawn in the argument?