Wealth Accumulation. Regardless of when you begin to accumulate wealth, a successful plan will require: A long-term investment strategy. A commitment to seeing that strategy through. An understanding of your tolerance for risk. One of the simplest tools to learn about accumulating wealth is the Rule of 72. Albert Einstein one of the smartest men of the modern era spoke of compounding interest as the eighth wonder of the world. It is the most powerful math equation thought of by man. Scores of large businesses tie their direct success to compounding interest such as banks and mortgage companies. Their business model was built on the premise of loaning money and making compounding interest payments as the loan is being repaid. Most Americans understand that’s how these businesses make money. However, they don’t seem to understand it can work the exact same for them. Let’s explore the Rule of 72.