Assuming that the world is the same today as 100 years ago is a terrible bet. Corporations and the stock market behave very differently today than they did 100

Assuming that the world is the same today as 100 years ago is a terrible bet. Corporations and the stock market behave very differently today than they did 100 years ago. The speed of market changes and their impact on companies and share prices is very different. While the article makes a good point about retirement, the numbers are likely to be incredibly different from the reality we will face.