You could have invested right after the financial crisis like me and others did. We have made more than a 3x return since then. This is in fact a direct result

You could have invested right after the financial crisis like me and others did. We have made more than a 3x return since then. This is in fact a direct result of the observations in the article. But stock market investment, over the long haul, does give better returns than any other form of savings.