The Colloquium focuses on the foundations of spacetime physics broadly construed, and will be held fortnightly on Zoom (16:00-18:00 CET).

The program for the winter semester is the following:

• 2 October – Carlo Rovelli (Aix-Marseille University) – “Why can we decide what we shall do tomorrow, but we cannot decide what we did yesterday? Time reversibility and the physics of an agent”
• 16 October – J. Brian Pitts (University of Cambridge) – “Change in observables in Hamiltonian general relativity”
• 30 October – James Read (University of Oxford) – “Shifts and reference”
• 13 November – Karen Crowther (University of Oslo) and Sebastian De Haro (University of Amsterdam) – “The role of singularities in the search for quantum gravity”
• 27 November – Claus Kiefer (University of Cologne) – “Time in quantum gravity”
• 11 December – Radin Dardashti (University of Wuppertal) – “The rise and fall of scientific problems”
• 8 January – Karim Thébault (University of Bristol) – “On the structure of time in physical theory”
• 22 January – Vera Matarese (Univ ersity of Bern) – “Spacetime the many substances”

People interested in attending the Colloquium can register by sending a
message to Antonio Vassallo (antonio.vassallo@pw.edu.pl).