The flexible phase entropy and its rise from the universal cybernetics duality

In this paper the entropy of a flexible phase (FP) medium (referred as FP entropy) emerges from a novel linger thermo theory (LTT) and then used in a biological lifespan study. LTT is the `dynamic metrics´ dual of the `stationary metrics´ latency information theory (LIT). These two nascent theories are synergistic time/space designs of the universal cybernetics duality (UC duality), first identified in linear quadratic Gaussian (LQG) control in 1978. While LIT has already yielded outstanding solutions for high-performance radar, LTT has done the same for biological lifespan, with both holding US patents. The FP entropy equation is found here subject to a constant internal mass-energy constraint of LTT that reflects actual gravitational/non-gravitational interactions of atoms or molecules. Moreover, this approach is revealed to contain a degrees of freedom (DoF) coupling constant that when multiplied by the heat capacity of liquid water at 310 K in thermal equilibrium accurately models the heat capacity of the human medium in its non-equilibrium thermal state. The use of the DoF coupling constant mechanism has been found to result in outstanding theoretical adult lifespan predictions that are directly linked to an individual´s heat capacity. These sensible results compel the view that the FP entropy approach will find broad use in future biophysical chemistry of lifespan studies.