To what extent can we know what happens in the most fundamental depths of nature? And how is it possible that the mechanisms of life—such as photosynthesis—take advantage of quantum effects that we still struggle to understand? These and other questions were at the heart of a unique conversation between two key figures in contemporary physics.

Quantum physics has not only revolutionized our understanding of the universe, but has also opened surprising avenues in computing, cryptography, biology, and philosophy. In this discussion, Alexandra Olaya-Castro, an expert in quantum phenomena in biological systems and recipient of the Maxwell Medal, spoke with Časlav Brukner, a leading quantum information theorist and pioneer in reflecting on reality and causality in the quantum realm.

Moderated by Lorena Sánchez, a journalist with The Conversation , the two explored the most fascinating dilemmas of quantum physics from complementary perspectives: fundamental theory, the limits of knowledge, and the entanglement between science and life. It was a space to question what we take for granted, open up new hypotheses, and discover how quantum physics not only describes the world but also redefines it. An encounter for those who seek to think beyond the visible, and for those who know that quantum physics is, above all, an invitation to imagine what exists.