You may get the bends if you go up or down too fast. Around 150 stories, that may start happening. We don't know yet. You could pressurize whole buildings, but I don't think people want to live in a sealed building.

How much are they able to capture your imagination and your heart? Being tall doesn't necessarily do it.

I think for a while we will keep building up and up and up. The desire is there.

Architecture adds dimensions to my life that would be impossible to acquire if I retired. The beautiful thing about architecture is that every project is brand new. I am forced to renew myself with every project. Isn't that wonderful?

I see my buildings as pieces of cities, and in my designs I try to make them into responsible and contributing citizens.

When I finished high school, I was 16, and in Argentina you have to choose a career right after high school. There is no such thing as a liberal arts education.