From the pov of a photon travelling at the speed of light, no time elapses from the moment it emits from the sun and absorbs in my eyeball. This is true also of all photons going all directions off the sun. This implies there is no distance either, for the photon, in any direction. So does this imply that from the point of view of a photon, is it’s universe a single dimensionless point? That is, for a photon, is it existing in a pre-big bang universe? And further, since there is at least one photon, surely there isn’t space for more than one …. And since it’s the same universe we occupy with that one photon (viewed through differing points of view), is all light that one photon, possibly superimposed countless times?
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I’m a little late to what appears to have become a party.
>From the pov of a photon travelling at the speed of light, no time elapses from the moment it emits from the sun and absorbs in my eyeball. This implies there is no distance either, for the photon, in any direction.
You’ve correctly noticed that the quasi-frame of the photon is a 2-D frame, instead of the conventional 4-D frame. No time elapses for the photon, and it traverses no distance in the direction of travel. It’s only a quasi-frame because no Lorentz transform can get you to that frame from any inertial 4-D frame; but it’s sort of a frame, because the limit of a sequence of Lorentz transforms can indeed get you to that frame (although that limit is not actually in the set of Lorentz transformations).
>So does this imply that from the point of view of a photon, is it’s universe a single dimensionless point?
[Its](https://www.youtube.com/watch?v=8Gv0H-vPoDc&t=80s) universe is not a single zero-dimensional point, but a plane. Only two of the four dimensions are collapsed.
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