2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/51506I review our current understanding of the Worldformula, M theory, focusing on themes from the work of Heisenberg.10 pages, 1 familiar figure. Presented at the Heisenberg Centennial Symposium, Munich, Dec. 6-7, 2001High Energy Physics - TheoryHigh Energy Physics - Phenomenologytext