A panel discussion on "What is an Observer?" at FQXi's 5th International Conference with James Hartle, Adrian Kent, Susanne Still, David Wolpert, David Wallace, Alan Guth, and Adam Brown.

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• The Quantum State of the Universe - A Dialogue with Sean Carroll and Alan Guth: Sean Carroll and Alan Guth discuss the quantum state of the universe.
• The stochastic thermodynamics of computation David Wolpert Santa Fe Institute: David Wolpert present formulas for the thermodynamic costs of implementing (loop-free) digital circuits, of implementing Turing machines, and of implementing multipartite processes like the interacting organelles in a cell.
• "Adam Brown - Agency and Quantum Mechanics": Theoretical physicist Adam Brown talks about Agency and Quantum Mechanics at the 6th International FQXi Conference.
• Maxwell's Demon in the Real World - Information as Fuel Talk by Susanne Still: Dr. Susanne Still shares the real-world implications of Maxwell's Demon, the thought experiment that challenges the second law of thermodynamics.