translation.en: Imagine you have an investment that returns the first year five percent, the second year 10 percent, the third year 20 percent, the next year 40 percent. Is that not marvelous?
translation.zh: 假设你有一笔投资， 第一年你获得了5%的收益， 第二年10%，第三年20%， 下一年40%……是不是太棒了？