Sir Roger Penrose has made seminal contributions to our understanding of space and time. In describing the initial conditions of the universe, he provided the foundation for studying the origins of the arrow of time.

A founding member and faculty at the Perimeter Institute for Theoretical Physics in Canada, a research institute devoted to foundational issues in theoretical physics, Fotini Markopoulou-Kalamara is a leading researcher in the problem of quantum gravity.

Michael Heller is a Professor of Philosophy at the Pontifical Academy of Theology in Krakow, Poland. His research interest is the intersection of physics, philosophy and theology in describing the nature of time.

George Ellis is Professor Emeritus of Applied Mathematics at the University of Capetown and investigates cosmology, the nature of time, and the emergence of complexity. He is the co-author with Stephen Hawking of The Large Scale Structure of Space Time.

David Albert is the Frederick E. Woodbridge Professor of Philosophy at Columbia University and a physicist who explores quantum mechanics. He is world-renowned for his insights into philosophical questions about the nature of time, space, and other problems of modern physics.