The last several years have brought a striking convergence between gravitational path integrals, finite-N holography, and string theory. The gravitational path integral has become a practical tool for computing intrinsically quantum features of spacetime, including replica wormholes, Page curves, black hole entropy, spectral statistics, and near-extremal densities of states. At the same time, developments on supersymmetric indices, the Giant Graviton Expansion, fortuity, and BPS chaos have led to a rich set of precise probes of the microscopic Hilbert space of quantum gravity. This conference will focus on what this convergence teaches us more broadly about string theory and quantum gravity. Rather than treating gravitational path integrals and finite-N holography as separate technical subjects, the meeting will ask how they can be combined into a coherent picture of quantum spacetime.

Guiding questions include how finite-N physics is encoded in the saddles of the path integrals, how supersymmetric observables connect to fuzzballs, how microscopic states are organized in different types of black holes and grey galaxies, and how string theory can sharpen the meaning of the gravitational path integral beyond effective field theory. The goal is to identify new directions towards a microscopic understanding of quantum black holes, applications to de Sitter horizons, and emergent Lorentzian spacetime dynamics beyond the large-N approximation.