This is a subtle corruption! Could be a nice topic for a short story. You start with a normal chocolate bar, then it doubles in size. You're glad, because you like chocolate, and it's more chocolate for you. Then it doubles again. You can start to share it. A few doublings later, you can share it with more people. Then it becomes so big, you start to think: maybe you could make a company selling this chocolate. You do, you get free supply everytime. To the point where you need more and more space to store the chocolate. It keeps growing so much that it becomes slowly dangerous for your warehouse, then for the town, then for the planet.