You need some kind of long distance transportation with enough capacity in cities still, because people just don’t stay in their little neighborhoods, they want

You need some kind of long distance transportation with enough capacity in cities still, because people just don’t stay in their little neighborhoods, they want to try the new restaurant in neighborhood A, catch up with a friend in neighborhood B, go to the sale in neighborhood C and before you know it all these little trips add up really fast. This wouldn’t happen if our neighborhoods were clones, but that would be terrible. Tokyo is a carpet of self-sufficient, dense neighborhoods, and yet people still travel all over the place in large numbers.