2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/129079Investigation of the many-body condensed-matter systems allows us to connect the microscopic physics at the atomic energy scale and the macroscopic physics emerging in the low-energy corner. It gives some hints on the mechanisms of the formation of the physical laws which our Universe obeys. The paper is devoted to the centenary of Matvei Petrovich Bronstein.14 pages, 2 figure, submitted to proceedings of the conference devoted to centenary of Matvei Bronstein, St. Petersburg, November 2006, typos corrected, references addedGeneral Relativity and Quantum CosmologyStrongly Correlated ElectronsHigh Energy Physics - PhenomenologyHistory and Philosophy of Physicstext