I both appreciate and am dismayed by the obsession with longevity. In our quest for longevity, we tend to treat aging as an adversary. I think there's a selfishness at the heart of this. Such a view misses some real benefits. Getting old brings wisdom, new priorities, and strong family connections across generations. As a dad, any physical aches I feel are more easily forgotten or tolerated when I focus on my children. The real secret to longevity is your offspring. If you want to live forever, have kids!