Dynamical Frames in Gravity: Observables, Locality, and Covariance

This lecture by the instructor from Okinawa Institute of Science and Technology explores the concept of dynamical frames in gravity, focusing on observables, locality, and covariance. The discussion delves into general covariance and locality, the formulation of gauge-invariant observables, and the challenges posed by gauge symmetry. The lecture also covers the notion of relational locality in gravity, the construction of gauge-invariant observables, and the importance of dynamical reference frames. The presentation concludes with a detailed examination of dressed observables, relational microcausality, and the implications of gauge-invariant local subsystems.