The livestream has now ended, but you can still watch the talk in full above or on Dezeen's Facebook page.
Viñoly, the architect behind the controversial 432 Park Avenue apartment building in New York, talks how the concept of performance applies to his work, in projects ranging from his scheme for the Tokyo International Forum to a temporary mobile performance space he is designing for Berlin.
We will be broadcasting a number of talks and seminars over the next few days from both events – including talks by Francis Kéré and Pierre de Meuron – as well as conducting video interviews with the winners.
World Architecture Festival takes place from 15-17 November 2017 at Arena Berlin. Take a look at the full programme.