The asphalt desert is largely created because the sprawling nature of automobile centric cities demands large amount of roads and structures.
This is a very fundamental principle that will make life enjoyable in the future. Using proximity power we can allow existing structure to have multiplicity of uses which makes life much more convenient for people.
By powering our cities from renewable energy we minimize our need for hydrocarbon fuels that are causing excessive global warming. Human energy should be considered much more important as a valuable resource for making things happen in the future. This is accomplished with leverage and ergonomic tools.