While driving recently, a long-forgotten song came on the radio. I found myself singing along; not only did I know all the lyrics to a song I hadn’t heard in 25 years or more, but I also managed to rap along. How is it that I could give this rendition, but often cannot remember what I came into the room for?
It is tempting to treat these moments as evidence of cognitive decline. A quiet, creeping sense that something is slipping. But the contrast between flawlessly (it was) performing a decades-old song and forgetting a just-formed intention is not a sign that memory is failing. It is a demonstration of how memory works.
