A few months ago I read a most exciting article in a scientific magazine. It seemed to me that the ideas presented had the potential to revolutionize all of microscopy and I got very excited at the vistas opened by this unexpected departure from the accepted dogma. The article was only a summary of the current status of the research in the field and I resolved to probe deeper. Since I read the piece just as I was ready to go to sleep I trusted my memory in the unreasonable belief that, should my memory fail, I could always access a computer database to retrieve the information when I needed it. I even recollect feeling very virtuous when, the very next morning, I entered the data into my files. At least I think I remember that.