It's really important not to think of this as just "invest in the stock market." It's "invest in assets with positive expected return." That means you need to d

It's really important not to think of this as just "invest in the stock market." It's "invest in assets with positive expected return." That means you need to diversify across asset classes, and that doesn't mean domestic and foreign stocks. Also, re: stock market - most people's perception is based on the last 30. That happens to be the longest sustained bull market in history.