The TED Idea Search arrives in Buenos Aires, a city with a fierce intellectual tradition, as 10 speakers deliver talks in a stunning warehouse that’s home to the city's iconic opera sets, competing for a chance to speak on the TED main stage. Watch as a Gen Z voice reframes "brain rot" as a secret diplomatic tool and a surgeon explores the future of robotic medicine, reminding us why the human touch still matters — and much more. Choosing just one to represent Buenos Aires to the world turns out to be one of the hardest decisions yet.