### id264432161 genetic selection for intelligence often has tradeoffs > [here’s a story about](https://www.nationalgeographic.com/science/article/scientists-breed-smarter-fish-but-reveal-the-costs-of-big-brains) someone selecting guppies for intelligence (successfully) and finding that they had smaller guts and lower fertility. I still think this isn’t *necessarily* true, but it looks like some of the lowest-hanging fruits if you just breed kind of randomly will be tradeoff genes. - [View Highlight](https://read.readwise.io/read/01fr78qhz36sssd3dnz1dnxw0s) - [[Links for December by Scott Alexander#id264432161 genetic selection for intelligence often has tradeoffs|View in Vault]]