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FQXi Conference on Setting Time Aright
Enjoy the many talks from the FQXi 2011 International Conference. All presentations are copyrighted by the authors and may not be copied or distributed without prior written permission.
Opening Panel
Sean Carroll, Panel Debate
Closing Talk
Setting Time Aright: Public Event Panel Discussion
Panel: Understanding How Time Works
Life
Paul Davies, Opening Remarks
Michael Laessig, Arrow of time in evolutionary biology
Existence
Memory
David Albert, Memory
Universe
Andreas Albrecht, On the Universe
Panel Debate: Huw Price, Richard Easther, Andreas Albrecht and Craig Callender
Choice
Multiverse
Paul Davies, Multiverse
Panel Debate: Paul Davies, Anthony Aguirre, Max Tegmark, Raphael Bousso
Quantization
Scott Aaronson
Jeff Tollaksen, Pre- and post-selection, weak measurements, dynamical nonlocality & the flow of time in quantum mechanics
Complexity
Truth
Mock Debates
Time with Julian Barbour and Tim Maudlin
Quantum Mechanics with David Albert and David Wallace
QSpace Latest
PressRelease: Precision experiment puts pressure on quantum collapse theories
Quantum mechanics, the theory governing the microscopic world, is famously counterintuitive. A particle can exist in a superposition of multiple states, such as different positions, until a measurement is performed. At that point, the wavefunction describing that particle appears to ‘collapse’ to a single outcome. This puzzle lies at the heart of the measurement problem, famously illustrated by Schrödinger’s cat, suspended between life and death until observed. The XENONnT detector, which was designed to be sensitive to rare physics events, has tightened constraints on one family of possible solutions to the measurement problem, known as ‘collapse theories.’ The work, which was partially funded by FQxI, was reported in Physical Review Letters in March 2026. Image credit: XENON Collaboration.