  The 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.

High Energy Physics - Theory;General Relativity and Quantum Cosmology