Walk along a street that has trees on the sidewalks, most of the vehicles that pass are bicycles or vehicles totally good for the environment. Buildings and houses are self-sufficient to generate their own light and even their water. There are small urban orchards in their gardens, sometimes they are individual and other times they are communal. The buildings are not too tall, so you can pass the sea wind and it does not increase several degrees as you enter more into the city center. There are robots that do the chores of the houses or flats, so that people only have to worry about going to work and then enjoying their family. People are happier because they don't have as many responsibilities outside of work.