I first read about this chart from Investment Moats. Still, it took me a good couple of months before I realised its implications. In essence, the chart means that you do not need to be good in investing in order to be rich! Pushing the envelop further, it can also mean that everyone could be rich, provided you follow the advice in the chart. The chart is extracted from Vanguard's Principles for Investing Success.
Take a look at the chart above. It plots the value of several portfolios with different savings growth and annual returns. The interesting part of the chart shows that a portfolio with 10% savings growth and 4% returns (dotted red line) could actually outperform a portfolio with 5% savings growth and 8% returns (brown full line)! Before coming into contact with the chart, I thought that the returns rate was ......