I got this achievement when I left my game idle while grinding for the 200 Vegans achievement. It, like the other achievement, seems to be a numbers game:
Project Morpheus and Gurus can help by spreading traits throughout your colony. But, if your colony is large enough and self-sustaining, eventually it will pop. The fastest way to get this achievement seems to be: build a massive colony that's self-sustaining (all wonders + many drones and shuttles) and then just go ham with domes and farms.
I had to manually save my game for both achievements to register, however. So if you do idle, I recommend coming back every few hours to check. Also, remember to plug in your controller, as the game will pause itself if your controller is disconnected.