Outliving your entire generation is a problem for those left behind. It's easy to become isolated. I'm already seeing the effect. I just lost another friend yesterday, from kidney failure. She loved plants, and I have a crab apple tree that she gave me, a keepsake like so many others in my life. I watched it happen to my grandfather, who died in 1961 at 98. He came from the era of chautaquas and debating societies, but the world had moved on. My mother lived to 95, and buried half a dozen best friends before she got too old to make any more. I'm only an average old guy, but the ghosts at Christmas far outnumber the living.