If we describe the way in which politics and architecture have experienced the birth, growth and explosion of the phenomenon of informal settlements (favelas, slums, bidonville, townships), if we reconstruct this history, we should speak of indifference and condemnation....
Since the end of the Second World War a lapse in memory, in attention, has created a paradoxical situation where, for at least 40 years, architecture and politics have argued to the historic city, the new city of trustees , the city of urban sprawl, but they were unable to face what was happening: anywhere a city based on the principle of survival was born, a city pushed to make maximum use of space, with minimal investments and costs in materials and technologies.
An unplanned city but made by a lot of rules. This informal city is now home for 33% of urban inhabitants of the globe.
A few months ago the population living in cities exceeded 50% of that living in the entire planet. This means that today we have 3 ½ billion urban people, a billion and half of whom live in informal settlements. For 2050, the urban population will be 75% of the entire population of the