High Speed Rail
I still remember taking the Bullet Train from Tokyo to Kyoto in 1966. It was thrilling just being on such a train. Train travel long ago surpassed air or car travel fro intermediate distances, but of course, we are too stupid to invest in such stuff. We'd much rather sit in traffic, inhalling CO. Living in LA in the mid-1950's, I learned that the automobile was definitively not the way to move large numbers of people. But the monied folks who represent cars, and the extractive industries are not about to let alternatives happen.