Should today’s 70-year-old American be considered “old?” How do you define that term these days? Statistically, your average 70-year-old has just a 2% chance of dying within a year. The estimated upper limits of average life expectancy is now 97, and a rapidly growing number of 70-year-olds will live past age 100. Perhaps more importantly, today’s 70-year-olds are in much better shape than their grandparents were at the same age. In most developed countries, healthy life expectancy from age 50 is growing faster than life expectancy itself, suggesting that the period of diminished vigor and ill health towards the end of life is being compressed. A recent series of articles in the Economist magazine suggest that we need a new term for people age 65 to 80, who are generally healthy and hearty, capable of knowledge-based work on an equal footing with 25-year-olds, and who are increasingly being shunted out of the workforce as if they were invalids or, well, “old.” Indeed, the a