Spinor-Vector Duality and the Swampland

The Swampland Program aims to address the question, "when does an effective field theory model of quantum gravity have ultraviolet complete embedding in string theory?", and can be regarded as a bottom-up approach investigations gravity. An alternative top-down aim explore imprints constraints imposed by dualities symmetries on representations most celebrated example this is mirror symmetry. Mirror symmetry was first observed worldsheet contructions compactifications. It completely unexpected from point view, its implications that context were astounding. In terms moduli parameters toroidally compactified Narain spaces, arising mappings internal space. Spinor-vector duality, which discovered constructions vacua, extension arises Wilson line moduli, provide probe constrain spaces $(2,0)$ spinor-vector duality are mere two examples much wider structure, whose yet unravelled. A mapping between supersymmetric non-supersymmetric vacua briefly discussed. $T$-duality another important property theory, thought phase-space compact I propose manifest related equivalence postulate mechanics, background independent overarching principles underlying