Similarly, the character models in Final Fantasy 7 say something about the human endocrine system. Aeris clearly reads as human despite you not being able to see her adrenal glands so maybe they don’t exist in real life
Existence is not limited to whether or not it's observed. Brains have evolved to only gather the minimum amount of information required to keep the organism alive in its particular environment. But there is an unfathomable amount of complexity in the universe, even in the things we _can_ perceive.
For 3D modeling specifically these details don't matter, which is why we're able to approach photorealism. The renders look good enough to fool our brains into thinking that we're looking at the object as it would appear in the real world. They're a good approximation of visual aspects, but they're far from a good representation of real world objects. We don't have nearly enough compute for that. We've only recently gained the ability to model how light behaves in the real world in real-time, and even that is an approximation.
Anyway, Infinigen looks like a cool product. It's great to see classical simulations instead of AI for a change.
the map is not the territory
0. http://researchgroups.pku.edu.cn/_resources/group1/M00/00/0D...
This in turn could explain the unreasonable effectiveness of brains — especially small ones like animal brains — at modeling and operating in the world.