“Of course, the problem with a word like ‘aging’ is the same as the problem with a word ‘pain’ — it doesn’t have a solid definition. We use the same word to describe the sparkly heat of a well-administered spanking that we do to describe a stubbed toe or an amputation, which causes a lot of confusion for those who can’t comprehend why anyone would ever seek out such an experience. And we use the same word to describe the graceful, decades-long accumulation of love and wisdom that we use for the hateful calcification of body and mind, the slow downward spiral that has only one endpoint.”