282. 10 Ideas changing the world right now....

Catherine Mayer writing in a Time Article entitled “10 Ideas changing the World Right now” in March 2009:

You may not have heard of X before—mainly because I’ve just coined the term. It’s about more than just the ripple effect of baby boomers” resisting the onset of age. It is a stranger, stronger alchemy, created by the intersection of that trend with a massive increase in life expectancy and a deep decline in the influence of organized religion—all viewed through the blue haze of Viagra. In their teens and 20s, they may seem preternaturally experienced. In later life, they often look young and dress younger. They have kids early or late—sometimes very late—or not at all. Their emotional lives are as chaotic as their financial planning. Their defining characteristic is to live in the same way, at the same pitch, doing and consuming much the same things, from late teens right up until death.

What is the term X that Ms Mayer coined?