Principle of Least Information(PLI) Grand Unification:\\ Involving a 7-Dimensional Two-Time Theory with a Polarization-Invariant Auxiliary Time and Janus Seam

We present a synthesis of a 7-dimensional Janus two-time framework equipped with a
compact T 2 sector and governed by a Principle of Least Information (PLI). An auxiliary time
involves a polarization-invariant plane (t, τ ) with a radial positive-definite covariance; under
any polarization one can reconstruct a complex Hilbert space (via OS/GNS) and a completely
positive trace-preserving (CPTP) influence map arising from a Hubbard–Stratonovich (HS)
quasi-free environment. Within an increment-stability class, PLI selects Gaussian laws
and sparse completely-monotone (CM) memories; strong positivity yields the Born rule,
forbids third-order interference, and supports a posterior-sampling selection rule that is
Born-correct, no-signalling, and MDL-feasible. The 7D reduction still recovers GR exactly on
observable slices with fixed c and G, and the SM gauge sector with near-exact electroweak-
scale couplings from a minimal set of compact geodesics and integers. We summarise crisp
laboratory, table-top, and astrophysical signatures and state updated unification theorems.

The Appendices are brief and mostly fleshed out in seperate publications you can find linked under Related Works. All can be found under the group identifier of "Part of 7D PLI 2t Grand Unification Model".