2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/149206I present arguments to the affect that the topological phase of string theory must be event-symmetric. This motivates a search for a universal string group for discrete strings in event-symmetric space-time which unifies space-time symmetry with internal gauge symmetry. This is partially successful but the results are incomplete and I speculate on the use of quantum groups to define a well behaved theory which would resolve the discrete/continuum dual nature of stringy space-time.37 pages, TeX (an important errata has been added)High Energy Physics - Theorytext