That has been my entire life story. Running against the current and running with the current. Sometimes running with the current is underestimated. The acceptance of certain realities doesn’t preclude idealism. It can lead to certain breakthroughs.

Asia is still dominated by skyscrapers. I hope that, in European cities, it will become a declining trend. They were almost never necessary.

We discovered a person in Lagos who had a fish stall, and within a single square metre she carried two children all the way to Harvard. She supported an unbelievable escape of her children into education. In that sense it was a city completed pixillated, and every pixel contained amazing stories.

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.

Criticism per se does not worry me. I've always solicited it as part of the design process.

I studied in London in 1968. Our school had a separate department of tropical architecture. Of course it was totally unfashionable, partly because nobody wanted to think about colonialism, but basically what you learned there was that, OK, the sun is here, so you should create natural ventilation here - an unbelievable amount of really sound principles that have been completely abandoned, so now everything is air conditioned with big machines.

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.