CAUSAL HORIZONAL RESEARCH IN COSMOLOGY

Abstract

This essay treats a borderline issue among Philosophy of the Cosmos, Astrophysical Cosmology, and Quantum Mechanics. The present universe (if there is only this one, finite, big bang universe) and/or the whole multiverse (if there are other universes beyond our big bang universe) would have to be fully and thoroughly causal. But there exist lacunae on the way to causality: both in the contemporary philosophical understanding of causality and in the theoretical recesses of micro- and macro-cosmic theories. Taking cue from my earlier work on microcosmic causality, I work here from the hYfothesis that the microcosm is probably causal in all its infinitesimal parts. The micro-world is thoroughly causal, and, by sequel, the macro-world too is thoroughly causal within itself, whether the world is created or not! There are, however, some theoretical difficulties in our macrocosmic theories. So, we shall discuss the big bang theory as the most accepted macro-cosmic theory to date, point out its major defect in the questionable concept of causation at the singularity, and suggest that it is important to work towards filling the lacuna in order to build a thoroughly causal understanding.