Sounds like a great bargain. A bunch of people I don’t know and can’t even imagine, who no doubt will have other things on their minds, will find an ancient book on matters that have long been forgotten, written in a language nobody any more knows how to read ­ if anybody knows how to read at all in the year 3000.

My father in his last years was tentatively diagnosed as having Alzheimer’s. I never believed it. Now, new research on the human genome and, among other things, how canaries learn new songs brings us a little closer to understanding how memory works, and why it doesn’t.