2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54037The concept of $Diff^4$ invariant Poincare transformations is a cornerstone of T(opological) G(eometro)D(ynamics). This concept makes it possible to understand the concept of subjective time and irreversibelity as well as nontriviality of S-matrix at quantum level. In this paper the possibility of identifying $Diff^4$ invariant Poincare transformations as the recently discovered Lorentz invariant deformation of Poincare algebra with the basic property that 'new' energy is some function of 'old' energy, is considered.8 pages,latexHigh Energy Physics - TheoryGeneral Relativity and Quantum Cosmologytext