The Grid makes the history of architecture and all previous lessons of urbanism irrelevant. It forces Manhattan's builders to develop a new system of formal values, to invent strategies for the distinction of one block from another. The Grid's two-dimensional discipline also creates undreamt-of freedom for three-dimensional anarchy. The Grid defines a new balance between control and de-control in which the city can be at the same time ordered and fluid, a metropolis of rigid chaos.

You need to look at inequality as a typical condition of modern society.

Escape from the architecture ghetto is one of the major drivers and has been from the very beginning.

When air conditioning, escalators, and advertising appeared, shopping expanded its scale, but also limited its spontaneity. And it became much more predictable, almost scientific. What had once been the most surprising became the most manipulated.

In Lagos there's a really strong case to resurrect strong parts. Embedded in all of it are some amazing pieces of planning, amazing pieces of engineering and interaction. For instance, the campus of Lagos University is stunningly beautiful, efficient and generous, and that needs to be recognised and preserved.

But now sustainability is such a political category that it's getting more and more difficult to think about it in a serious way. Sustainability has become an ornament.

There's something really interesting about current urbanism: the only model is the universal model, and there is increasingly incapacity to consider the virtues and the qualities that are there, and then to build on them. The only thing is complete transformation.