2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42172We present the natural arguments for the rationality of a recently proposed simple approach for renormalization which is based solving differential equations. The renormalization group equation is also derived in a natural way and recognized as a decoupling theorem of the UV modes that underlie a QFT. This new strategy has direct implications to the scheme dependence problem.6 pages, no figure, revtexHigh Energy Physics - PhenomenologyHigh Energy Physics - TheoryNuclear TheoryQuantum PhysicsCoarse graining and a new strategy for renormalizationtext