
By the year 2050, Europe is going to become carbon-neutral and the high-speed rail network would replace airplanes. A lot of infrastructure will become obsolete. A great solution is to recycle it by creating energetically self-sufficient communities. Such a project will be a great playground to test out different green technologies before applying them to the rest of the city.
In a nutshell, turning an old airport into a village helps Paris to create a cultural space to kick-start creativity.