Woven Theory-Big Rip vs Woven Threads: A First-Principles Prediction of Cosmic Lifetime

Modern cosmology indicates that the universe is undergoing accelerated expansion. Standard models attribute this phenomenon to dark energy, while more speculative scenarios such as the Big Rip suggest that expansion may ultimately destroy all cosmic structures. This work presents an alternative explanation derived from the Woven spacetime framework, in which spacetime is modeled as a lattice of Planck-scale Fibron threads possessing intrinsic stiffness and vacuum tension. Within this model, cosmic expansion corresponds to the gradual accumulation of lattice strain. Because the lattice has a finite elastic capacity, it predicts a natural cosmic horizon at approximately 42 billion years, when the lattice strain reaches saturation. Unlike the Big Rip, which predicts a divergence of the Hubble rate, the Woven model predicts a transition to asymptotic expansion, where the universe continues to expand but no longer forms stable structures. The convergence between Big Rip estimates (36–50 Gyr) and the Woven prediction (~42 Gyr) is striking, yet the underlying physics is fundamentally different. The Woven prediction arises from first principles based on Planck-scale spacetime mechanics, offering a potential new interpretation of cosmic fate.