2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/51732We review a recent proposal towards a microscopic understanding of the entropy of non-supersymmetric spacetimes -- with emphasis on the Schwarzschild black hole. The approach is based at an intermediate step on the description of the non-supersymmetric spacetime in terms of dual Euclidean brane pairs of type-II string-theory or M-theory. By counting specific chain structures on the brane-complex, it is shown that one can reproduce the exact Schwarzschild black hole entropy plus its logarithmic correction.13 pages, 3 figures; Summary of talks given at 10th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY'02), Hamburg, Germany, 17-23 Jun 2002 and RTN Workshop on the Quantum Structure of Spacetime, Leuven, Belgium, 13-19 Sep 2002High Energy Physics - Theorytext