The photon is the most ordinary thing you will meet today — and the strangest. It has no mass. It never rests. Along its own path, in the strict geometry of Einstein’s relativity, no time passes at all between the star that emits it and the eye that receives it. The Old Testament’s first creative word is “Let there be light,” and physics has spent a century discovering that light was always a stranger guest than we thought. Not proof of anything — but a very good reason to stop assuming the universe is ordinary.

Notice where the Bible chooses to begin. Not with mountains, seas, or humanity. The first creative word in Genesis — the opening book of the Old Testament — is about light: And God said, “Let there be light,” and there was light. For most of history a reader could take that as a beautiful but domestic opening; what is more familiar than light?

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