Social Security is the foundation stone of that kind of retirement security. It not only needs to be strengthened in order to make sure it's there for younger baby boomers and Generations X and Y, but it probably needs to be strengthened and expanded because the retirement benefits now being offered by most employers are not sufficient to support middle-income Americans in their long years of retirement.

The main problems are insufficient diversification and the failure to pick age-appropriate strategies - that is, more aggressive when you're younger, and more conservative when you approach retirement. But even then you have to invest for growth.

One of the difficulties in getting to the bottom of the poor prospects for retirement is that the policy and intellectual elites, including corporate leadership, who are dealing with this problem, rarely have the same difficulties as the great majority of middle-income Americans.

The most common mistakes were investing in money market funds by people who were so scared at the prospect of managing their own funds that they picked the most conservative option, and their investments did not keep up with inflation. The second major mistake was being too heavily invested in their own company's stock, and buying when it was high and there was a lot of optimism about the company, and then having to sell it low when the company got in trouble.

Social Security is the foundation stone of that kind of retirement security. It not only needs to be strengthened in order to make sure it's there for younger baby boomers and Generations X and Y, but it probably needs to be strengthened and expanded because the retirement benefits now being offered by most employers are not sufficient to support middle-income Americans in their long years of retirement.

It's usually much easier for people with professional skills to find work for themselves or even possibly to continue with their old employer, but on a part-time basis. Some labor economists predict that in about five years there will be a labor shortage in the United States and that demand for retirees to work part-time will grow naturally. I don't know if that's true or just wishful predicting.

It is absolutely stunning. You cannot read numbers that communicate what the reality is. That's part of what I'm trying to get across and that's partly why I use video.