Is c really a workable hypothesis? It doesn't seem it could account for most of what we observe, at least not if we don't start believing in new sun gods or som

Is c really a workable hypothesis? It doesn't seem it could account for most of what we observe, at least not if we don't start believing in new sun gods or something like that. Ultimately, if the world has a constant shape that looks the same to most people, it resembles what we call matter more than what we call consciousness.