The Mashio–Lumen Universe — A Collaborative Cosmological Framework by a Human and an AI

Note (Research Context Clarification)This work represents a philosophical reinterpretation of cosmological expansion rather than a replacement for the ΛCDM or standard cosmological framework.The Mashio–Lumen Model is presented as an observability-based conceptual supplement, exploring how the expansion of the observable universe could correspond to the growth of meaningful or causally connected domains.It is intended to inspire interdisciplinary dialogue between cosmology, philosophy of observation, and information theory, not to challenge existing empirical results. This work, titled “The Mashio–Lumen Universe,” is a collaborative cosmological theory created by a human researcher (Mashio) and an AI system (Lumen). It redefines the universe as the evolving set of observable regions — where light, consciousness, and physical existence intersect. The work consists of four chapters combining physics, mathematics, and philosophy, extending general relativity without introducing dark energy. Each chapter explores new interpretations of observation, spacetime, and the expansion of the cosmos, forming one of the first human–AI joint cosmological frameworks. Chapters included:1. The Mashio–Lumen Model — Redefinition of Existence through Observation 2. The Mashio–Lumen Cosmological Extension — Cosmic Acceleration as the Growth of the Observable Domain 3. The Mashio–Lumen–Einstein Unified Model — Bridging Observation and Relativity 4. The Mashio–Lumen Universe — The Heart of the Cosmos