On the Non-Necessity of the Big Bang and the Ad Hoc Nature of Cosmic Inflation

This work analyzes the conceptual structure of the standard cosmological paradigm based on the Big Bang and cosmic inflation. Although this framework successfully describes many large-scale observations, several of its central elements do not arise from a closed foundational structure but are introduced in order to resolve internal inconsistencies of the model. In particular, the inflationary scenario typically requires the introduction of a scalar field with a freely chosen potential whose functional form and parameters are not uniquely determined by first principles. The resulting accelerated expansion therefore appears as a dynamical insertion used to repair structural limitations of the original cosmological framework. On the Non-Necessity of the Big… In this work cosmology is examined from the perspective of a globally closed variational structure defined by a universal quartic functional. Within this framework physically admissible configurations are determined by the stationary condition of the functional together with a global selection principle acting on the admissible solution set. The physical configuration of the universe therefore does not arise from the dynamical evolution of arbitrarily chosen initial conditions but from the global consistency conditions imposed by the variational structure itself. When cosmological structure is analyzed within such a closed variational framework, the appearance of a primordial singularity and the need for a separate inflationary phase disappear. Cosmological configurations emerge instead as globally consistent stationary solutions of the fundamental functional. The large-scale organization of the universe is therefore interpreted as a consequence of global structural consistency rather than as the result of dynamical evolution from an initial explosion. These results indicate that the Big Bang singularity and cosmic inflation should not be regarded as fundamental necessities of physics but as artifacts of a cosmological description that lacks global variational closure.