Martin Bojowald talks about the problem of time in classical physics and proposes using quantum spacetime, specifically the covariance of the gravitational state, as a new "time" variable.

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• "Martin Bojowald - Hypersurface deformation structures and space-time models": Deformations of spacelike hypersurfaces in space-time have recently been shown to form an L-infinity algebroid. Space-time models for gravitational field theories, however, are commonly derived and analyzed using a Poisson bracket. The discrepancy may have implications for physics questions such as the nature of black-hole singularities.
• Martin Bojowald (Penn State), The cycles of bouncing cosmology:This video is part of the PROTEUS project that has received funding from the European Research Council (ERC) under the Horizon 2020 research and innovation programme (Grant agreement No. 758145) Key.
• The Return of the Observer by James Hartle: James Hartle discusses Information Gathering and Utilizing Systems (IGUSes) within the context of quantum cosmology, explaining how space-time and matter in the universe can be described using decoherent histories quantum mechanics.