as I’ve grown older myself, and have spent more time with people who are in the last quarter of their lives, I’ve seen a different side of aging. My parents are now in their mideighties and are as engaged with life as they have ever been, immersed in social interactions, spiritual pursuits, hiking, and nature, and even starting new professional projects. They look old, but they feel like the same people they were fifty years ago, and this amazes them.