system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:why are all bodybuilders too tanned when most don't find this aesthetically pleasing?
gpt
Dark/black shows shadows from muscle definition better. White just looks white/less white. If they get it right it will look dark brown in the light and black where the ripples cast a shadow.

Basically the human eye is better at telling the difference between a 15w and 10w light bulb than a 100w and a 95w light bulb. So they use that to their advantage.