The apocalypse is coming, others are fighting zombies, and I am farming. I use biotechnology to cultivate super crops, use AI to manage automated farms, and use trade to exchange for supplies. When the zombie army came, I opened the warehouse - there were tons of genetically modified vegetables inside, and the zombies ran away when they smelled it. Three years later, I became the only food supplier in the apocalypse, and even zombies had to use supplies to buy my food.
