Could you afford to live to 100?

Here’s an interesting statistic: Over the past three decades, the centenarian population in the United States has grown about 66%, according to the U.S. Census Bureau. Of course, this doesn’t necessarily mean that you have a good chance of living to 100 — but the possibility may not be as remote as it once was. In any case, if you do plan to retire in your mid-60s, and you are in good health, you may well have two, or even three, decades ahead of you. To enjoy this time to the fullest — and to help prevent the possibility of outliving your financial resources — you will need to invest for inco...