I remember reading sometime somewhere this story:
On an island lived two communities of rats. One created art and the other only worked. The rats which only worked were better at resource acquisition and had better survival rates, in the end, as competition increased, all rats stopped creating art.
This is all I can recall. It may be a story, or some thought experiment, there could be rats or mice. And I surely remember them being on an island.
It is highly possible it is something famous and I cannot find the right words to look for it. I tried searching on google and I even prompted ChatGPT but I couldn't find where it was first mentioned. Please help me identify the story.