  The Supersymmetric SO(10) theory ("NMSO(10)GUT") based on the\hfil\break
${\bf{210+126 +\oot}}$ Higgs system proposed in 1982 has evolved into a
realistic theory capable of fitting the known low energy Particle Physics data
besides providing a Dark matter candidate and embedding Inflationary Cosmology.
It dynamically resolves longstanding issues such as fast dimension five
operator mediated proton decay in Susy GUTs by allowing explicit and complete
calculation of crucial threshold effects at $M_{Susy}$ and $M_{GUT}$ in terms
of fundamental parameters. This shows that SO(10) Yukawas responsible for
observed fermion masses as well as operator dimension 5 mediated proton decay
can be highly suppressed on a "Higgs dissolution edge" in the parameter space
of GUTs with rich superheavy spectra. This novel and generically relevant
result highlights the need for every realistic UV completion model with a
large/infinite number of heavy fields coupled to the light Higgs doublets to
explicitly account for the large wave function renormalization effects on
emergent light Higgs fields in order to be considered a quantitatively well
defined candidate UV completion. The NMSGUT predicts large soft Susy breaking
trilinear couplings and distinctive sparticle spectra. Measurable or near
measurable level of tensor perturbations- and thus large Inflaton mass scale-
may be accommodated by Supersymetric Seesaw inflation within the NMSGUT based
on an LHN flat direction Inflaton if the Higgs component contains contributions
from heavy Higgs components. Successful NMSGUT fits suggest a
\emph{renormalizable} Yukawon Ultra minimal gauged theory of flavor based upon
the NMSGUT Higgs structure.
