Yeah, my first thought was that since the "rules" of art are merely the discovery of what we as humans find pleasing, and since mathematics is the discovery of fundamental logical conclusions, there's no reason to assume it has anything to do with genetics (well, aside from the fact that we must somehow be 'genetically' predisposed to liking golden ratios, etc).
> the fact that we must somehow be 'genetically' predisposed to liking golden ratios, etc
This is not a fact. There is absolutely no research evidence that people tend to prefer the golden ratio of 1.618.. over other ratios. Especially it's very doubtful people would have a preference compared to the nearby simple ratios of small numbers 1.5 and 1.666.
Fibonacci-like sequences pop up in a few specific growth models in nature, which often converge to the golden ratio (if the growth is perfect and unhampered by external factors). Mostly in plants. Particularly not in nautilus shell spirals (that's a legend, based on cherry-picking and sloppy measurements) and also not in spiral galaxies, or fiddlehead ferns.
It's still fascinating stuff, but it's even more fascinating if you ask to see proof of all these outlandish claims, and learning about the underlying principles behind the actual phenomenon.
