Exactly what I was going to say. I didn't even see it in the still photo until I looked carefully. The eye focuses on the main action, and that area is relatively small. The brain "fills in" the detail around your center of vision. Illusionists exploit this regularly.
There was a post here maybe a month ago that exposes how small the actual "high definition" center of vision (fovea centralis) is. You can really see detail only in a small area at the center of your vision. Outside of that, the brain fills in what it thinks should be there.
SoftTalker|2 months ago
There was a post here maybe a month ago that exposes how small the actual "high definition" center of vision (fovea centralis) is. You can really see detail only in a small area at the center of your vision. Outside of that, the brain fills in what it thinks should be there.
https://www.shadertoy.com/view/4dsXzM
nilslindemann|2 months ago
https://www.youtube.com/watch?v=7hgJpfn3zXw