I differ greatly with the author on the specifics, but I really like the general approach.
There is a lot that is annoying, and even terrible, about aging. The creakiness of the body; the drifting of the memory; the reprising of personal history ad nauseam, with only yourself to listen.
But there is also something profoundly liberating about aging: an attitude, one that comes hard won. Only when you hit 60 can you begin to say, with great aplomb: “I’m too old for this.”
(When I worked at a university I occasionally had a reverie that featured the department chairman announcing, "All faculty will be expected to attend this year's meaningless meetngs, except for faculty who've served for 20 or more years and who are simply too old for that shit.")