This paper introduces a mathematically structured speculative framework proposing that the cosmos consists of sequentially ordered universes connected through finite geometric regions termed Intervals (∆L). Unlike traditional multiverse or brane models, this framework establishes a non-merger condition in which adjacent universes remain topologically distinct while permitting curvature-mediated interaction across a finite separation gap. The Interval region is modeled using a modified Morris–Thorne wormhole metric following the formalism of Morris and Thorne, with explicit solutions to the Einstein Field Equations demonstrating quantified Null Energy Condition (NEC) violation. Linear stability analysis confirms harmonic perturbative stability of the throat structure. The framework further extends the standard FLRW cosmology by introducing an interval-dependent correction to the Friedmann equation via a scalar field Lagrangian. This produces a dynamic reinterpretation of dark energy as a geometric leakage term rather than a static cosmological constant. Temporal mechanics are reformulated through interval-dependent proper time scaling, generating asymmetric time flow between adjacent universes without violating local Lorentz invariance. The model geometrically modifies causal horizons and proposes an alternative resolution to the horizon problem without requiring prolonged exponential inflation as originally proposed by Alan Guth. A metastable vacuum decay mechanism is developed to explain matter genesis, with reheating dynamics consistent with Big Bang Nucleosynthesis constraints. Quantum Field Theory in curved spacetime is applied following the chronology protection arguments of Stephen Hawking, demonstrating that macroscopic time travel is forbidden due to divergent renormalized stress-energy near Cauchy horizons. The model predicts: A localized CMB cold spot anomaly (∆T ≈ −150 μK) A stochastic gravitational wave signature around 10⁻³ Hz consistent with sensitivity targets of LISA A distinctive anisotropic non-Gaussian bispectrum at multipoles ℓ ≈ 40–60 Unlike singular Big Bang cosmology, the theory replaces the initial singularity with a finite curvature bounce, avoiding geodesic incompleteness while preserving thermodynamic entropy through horizon formation. This work provides a geometrically consistent, observationally testable extension of general relativity into a sequential multiverse topology, integrating wormhole stability, vacuum dynamics, quantum backreaction, and cosmological perturbation theory into a unified speculative framework.
shakti rao mani Rao (Sun,) studied this question.