Live to 150, Can You Do It?

The special also explores secrets to aging gracefully and living life to its fullest, from the 83-year-old actor turned race car driver Paul Newman, and Carmen, the oldest working fashion model.

(ABCNEWS)

And what about the implications of a longer life? Can you imagine being married to the same person for 100 years? Well, if we live much longer than a century, our relationships, our spending habits, our retirement plans are bound to undergo sweeping changes. I asked the "Freakonomics" author, Stephen Dubner, if it will ever be cool to be old.

This is what he said: "I'll say that there will come a time when being old is cooler than being young, because what being old will represent is power, it will represent money. It will represent having survived. It will represent wisdom. You know it's a prediction I'd like to make."

On that optimistic note, and with the hope that we're all going to be around for many years to come, I wish you a long, healthy life.

Purchase a copy of the Barbara Walters special, 'Live to Be 150' on DVD.